xs650 performance engine
While you freshened the module, plugs, etc. [More about this bike | Red Max Speed Shop]. Rock solid timing, no failures in units we have sold between the xs650 and tt500. 750 cc. Engines come without carburettors/ ignition / alternator. $226.48. It may not display this or other websites correctly. Shell/JE 700 piston sets, top quality forged pistons. At some point in their learning process, most riders will discover that their motorcycle has developed a new, odd sound. rideapart.com - Dustin Wheelen 13h. Showa were in turn bought out by Yamaha in the same year and so Yamaha inherited the Horex engine design as developed and improved by Hosk. Engine mods aboundthe most noticeable being a 750cc big-bore kit. If left unchecked, they will fail. On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha XS 650 . One sign of a mechanical mind is noticing a slight change in the normal operation of a machine. What started out as a client project eventually became a BMX-inspired homage to SEs legendary P.K. If you prefer Paypal, we can process payments with a 4% fee applied to the total. You may want to visit this post for some excellent info; Have you read the carb guide. All engines are (as) new from the inside and the outside. Its getting worse, but you dont notice because youve stopped listening. The only thing that changes are the ignition, crankshaft and camshaft. We do not have a service shop. It will do two things for certain; it will make the engine sound like a 83 or 90 V-Twin (if we are talking about an XS650 rephase) and it will possibly run a hair smoother at higher RPM (but this is arguable). The tail unit has a classic flat tracker shape, but is made from carbon fibre. Coverage from BikeEXIF shows off a machine blessed with an aluminum frame, in which the air-cooled, 654cc, parallel-twin engine becomes a stressed member.. The XS650 began with the 1955 Hosk SOHC 500 twin.After about 10 years of producing 500 twin, Hosk engineers designed a 650 cc twin. Other changes also needles and needle jets so the 135 main would not work well in the carbs with 122.5 main. Seller assumes all responsibility for this listing. Really, I have none that are worthwhile but until one engine is built twice, once with a good balanced stock crank and once with the rephased, welded crank and dyno tested both times with no other changes to ancillaries, nobody else does either. dalton1359 (3,442) 100%. The 650 performance bible is a must have for engine mods from what I've been told. *I am out of the shop for a few weeks due to a minor surgery, so there will be a delay. I have these in 447,256 and 533. The power curve would be very different too, having a steeper curve for the stock crank (dropping off at 8,500 RPM) and a more linear curve for the rephase (dropping off 500 RPM later). Forged Big Bore (750cc.) Blue skies, just cool enough for your leather to make you sweat, and almost no wind speak of. This bike has been raced by his son Kye for over five years, the parts Rick and sometimes Howard (because he can't really retire) design are used on the road engines Rick builds for customers. Was: $26.99. It's subtle, but it's definitely there. Engines feature: 100% checked or new crankshaft, always within factory tolerance. Maybe its always made that sound. 1970 Yamaha XS650; 1971 Yamaha XS650; 1972 Yamaha XS650; 1973 Yamaha XS650; 1974 Yamaha XS650; 1975 Yamaha XS650; 1976 Yamaha XS650; . 4. Surprisingly no ones spotted the .00 error in the manuals copied from the first Yamaha factory manual, probably because i never published that part either, or the 10 plate clutch trick.Good on you for settling the rephase myth (now retired from the XS650 tuning business, but still riding hopped up 650's). The engine has a 360 crank which means the pistons go up and down together, sort of like the twin cylinder bike you have when you really want a single. We have engine case bolts for many vintage Japanese street bikes. New 650/750 Engine parts/ xs650 Gasket Seals filter. Big Bore cylinder and piston kit- The only complete bolt on big bore 750cc, The Only complete bolt-on Big Bore 750cc Cylinder and piston kit ever made for the XS650 Yamaha, Modified limited production European Race Engine Cylinder Block has enlarged fins for improved cooling. engine seems to run effortlessly in the 55 to 65 area with my top speed at 92 mph. Hi, I just read your XS650 rephasing and tuning article and as the man who pioneered XS tuning in the U.K 30 years ago I have tried every option you mention and more. $39.95 TC Bros. 6-1/4" Wide Spun Steel Chopper & Bobber Fender by TC Bros Choppers. The New Cylinder Block has longer fins matching the Head Fin Length. We like the 250-30 for our flat track 70hp motors. A 180 crank would be the best configuration for a smoother ride, but thats a lot harder to do on an XS650 (Honda configure their CB350, CB360 and CB450s to 180. If you are looking for a bike that can be had at a reasonable cost that has the personality to become a favoured companion for road adventures then a Yamaha XS650 could be just the bike you are looking for. Top and 2nd. There is no down side to weight loss at all, whatsoever. My thoughts are that this subject should become a separate category, as it contains aspects of the Carb section, Ignition, Electrical, Engine Mechanical, and even the exhaust section. $169.95 Its Triple Perf-Tube technology, with tunable rotary disks, allows fine-tuning of the power capability delivery for different types of riding . Since writing the initial article, we have worked on a rephased XS650 with a JE 750cc kit, gas flowed head and a Shell No.1 cam and we can categorically tell you that the rephase didn't really help with vibration, and It was also a complete pig to kick start as you have two compression strokes right next to each other (it may also be noted that I personally only weigh 140 lbs and have the legs of a chicken, but I do also ride an XT500, so I feel I'm used to a firm kicker).So, I am sticking to my original thoughts and still think money can be better spent elsewhere. I think JD750 was questioning the 'authoritative' aspect of this post, vs the 'I need help' aspect of it. Pistons. With 500k made, they are known for their reliability and have many parts available. It feels like the Yamaha XS650 has been around forever, and thats not far from the truth: it was offered in various guises from 1968 until 1985. Pistons are 9.5 to 1 compression ratio. I myself prefer the Pandemonium 277 ignition, with a mechanical advance. Wait, do you hear that? I actually did tear down the same motors and tried every combination possible. 77 YAMAHA XS650D XS650 XS 650 D FORK TRIM. Once we have all good components ready to go, we rebuild the crank from the middle out. I don't know why. $79.95 . Motorcycle magazine writers often seem to think that all bike riders are looking for ever faster machines capable of causing extreme terror for pillion passengers and actually a lot of bike riders arent looking for that at all. Part#02106 (FACTORY YAMAHA) $65.00 3 in stock, Megacycle cam profiles. Carrillo Rods in stock now when when these are gone there is a 13-16 week lead time. You already know that we are the Go-To people for XS650 Rephasing Services, weve been doing it since day one, and in all honesty it is what put Hughs HandBuilt on the map (next to our PMA Systems). Of course you can, but youve stopped paying attention. These were amongst the features that made this engine so reliable. The finished bike's performance is much more than impressive numbers. A 1st.over piston is marked 0.25 which is equivalent to 10 thousandths of an inch . OS is marked 0.50 etc. ***All of our exchange services are based on cash/check/money order pricing. #14. Free shipping on many items | Browse your favorite brands . Camshafts are sent back to you with the cam gear installed, ready to bolt in and go. . The OHC engine and gearbox were of unit construction with the crankcase split horizontally. Part# HRS stk-465 $345.00 special order email me. $33.99. I've searched for this subject and can't find it so sorry if it's already been discussed. First off, we disassemble your crank 100% down to each needle bearing, rod pin, and flywheel This allows us to fully clean and inspect your components for wear/damage and fully assess the rebuild. The "Special" cruiser model was introduced in 1978 and produced through 1985. Starting at 2000 rpm and shifting up at 4000 rpm feels natural and is enough to run away from traffic. SKRN B.V.Krommendijk 20A7603 NK AlmeloThe Netherlands, Mail: emailProtector.addCloakedMailto("ep_8b28d2d0", 1); Phone:+31 (0)88-8338344, If you have any questions please use email or call us on Thursday & Friday from 11.30-13.30 (CET)Saturdays from 09.00-14.00 (CET). Dont let that pinging or clatter go undiagnosed. The engine was narrow and tall giving the bike a slim profile and making it easy to manoeuvre. You really need to carefully check the timing with a light while the engine is running to make sure the base timing is correct and that it is advancing as desired. However, spending the same money on weight loss would be money well spent too. Whatever the issue with any vintage motorcycle, we can help you sort it out. When US Commodore Matthew Perry engaged in a bit of American gunboat diplomacy back in 1853 the Japanese were forced to emerge from their two hundred and fifty years of isolation from the world. CNC Performance Valve Job $160.00. While building the XS, Ryland simultaneously tore down and rebuilt a 2010 P.K. Narrower rings also allow tighter tolerances and less blowby. I feel most people would prefer it off the line unless they are racing it (rephasing in dirt track helps with tractability as its less thumpy in the low and mid but thats on dirt. + Postage. As with all performance parts it is always good to check clearances. . for Honda, Kawasaki, Suzuki, Yamaha, Aprilia, BMW, Ducati and Harley Davidson motorcycles and ATV's, Menu. Email, Name, Address and Phone Number. XS Performance Big Bore Race Cylinder Block with sleeves installed and finished to fit our 80mm. No worries of run out as I have seen with many others cams. Modified limited production European Race Engine Cylinder Block has enlarged fins for improved cooling. We are always taking in Crank and Cam Rephase Services. Camshafts are sent back to you with the cam gear . Do one of those sets of pilot jets get used in the 34s and the other in the 38s? It had different length rods and different pistons. Less weight reduces ring groove pound out. Engine -. Fitted with our XS Performance Camshaft, Dellorto Carbs, a free-flowing Exhaust and Iridium spark plugs will result in about 65 Rear wheel Horsepower or more and 50 foot-pounds of Torque. Part# 302957 for your 256 motor $300.00 (1 LEFT), Part#347370 for your 533 motor $300.00 (1 LEFT. GET THE WORLD'S BEST CUSTOMS DELIVERED TO YOUR INBOX. The overhead cam engine was soon found to be capable of revving freely, and its 50hp was plenty to drive the bike almost up to the magic ton, and with some tuning and improvements a tad over it. Performance Part. Kits come with pistons, pins clips and rings . HUGE PRICE DROP! Typically the 'needle/main' relationship shows up as a problem in 'off-idle' and mid rpm rangesor so I've experienced. Yamaha xs 650 chopper bobber Exhaust Downpipe. 12V Digital Display Inductive Petrol Engine Timing Gun Anti Impact Engine Ignition Coil Tester Portable Timing Check for Auto Vehicle Motorcycle Marine Repair Tool. Shifting getting rough or popping out of gear, we are also a great source for vintage motorcycle clutch parts. The Crank and Cam are both rephased for a matched set. The engine wasnt counterbalanced to remove that vibration. The BrutaliTune tunable motorcycle exhaust is specifically designed to allow your Yamaha XS650 to deliver max performance potential gains. Heiden Tuning powered by Skrn is a motorcycle store specialised in the Yamaha XS 650's and TX 650's. But, like a snowball rolling down a hill, that minor engine issue can build, until it suddenly become a catastrophic. Link for the 83 page XS650/750 Engine Modification Guide, $39.95 You're only talking a few HP difference between the two engine styles, not enough in my book to offset the negatives. Part# 256LRfor256 long rods motors $685.00 (a par) . Wedged between them are a wood-clad Yamaha XS650, and the wildest supercharged Honda CBR900 we've ever laid eyes on. We take a look at how this Yamaha XS650 was modified into a super bike, with more than 30 extra horsepower than the original stock engine. Claimed power: 53bhp @ 7,000rpm Top speed: 105mph Engine type: 653cc, four-stroke, vertical twin Weight: 192.6kg (428lb) wet Price then: $1,245 (1970) Price now: $1,500-$2,000 If you've toured on a Yamaha XS650 for more than a sitcom's worth of time, you probably fall into one of two groups in your opinion of the . For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but does at least tell you things you actually need to know. OK..finally back into this again after a few days away from it. TC Bros. TC Bros. XS650 Billet Aluminum Intake Manifolds. The XS650s main competitors either had push-rod engines with vertically split crankcases (the ones that cause landladies to complain about the oil stains on the apartment carpet) or they were not unit construction having the engine and gearbox separate. YAMAHAXS650.COM ALL YOUR YAMAHA NEEDS Welcome To YamahaXS650.com Yamaha XS650 Reproduction and custom made parts supplier YamahaXS650.com supplies parts for Yamaha XS/TX650 Twins (1970-84) Only! greeves challenger rolling chassis c/w engine plates for triumph 350/500 engine. The problem you are describing - white plugs, no ooomph over 5,000 - may be that simple. When new, your now-vintage motorcylce ran like a jet fighter. The "Special" cruiser model was introduced in 1978 and produced through 1985. The XS was popular among racers, with Kenny Roberts piloting it to victory in the 1973 AMA National dirt track series. ), which would translate to 78 HP in comparison to the stock machine. It turns over with compression. The camchain tensioner design in the later engines is also, IMO, better, as it properly addresses the chain's natural tendancy to 'fling-off' a sprocket, as compared to the earliest 256 design, which has it's lower tensioner block pressing outward at the exit side of the crankshaft sprocket. Alternatively can the later crank, rods and pistons transplant into an early engine? When first introduced the Yamaha XS650 developed a reputation for poor handling. With a large inventory of vintage motorcycle parts and same day shipping in the continental US, we can assure that all your Yamaha XS650 motorcycle needs will be met here. Yamaha XS650. We only use cookies to give you the best experience on our site. This deviation from MotoRelic's usual fare was conceived six years ago. I don't mean to sound like a broken record but reading the Carb Guide should answer just about every question you've asked. So long as the camshaft is in good shape, we then machine and rephase the camshaft on our in house fixtures to match your rephased crankshaft. Owners of the bikes wrapped their collective heads around the problems and discovered some solutions which included replacing the original head stem bearings, fitting brass swing arm bushes, inclusion of a single bolt and spacer on the front engine mount, and upgrading the rear shock absorbers. Its a lot heavier, much more complex and doesnt come close to handling as well, for a start. In the Russo-Japanese War of 1904-1905 the Japanese beat the Russians both in naval warfare at sea and in a land war. Dont you hear it? 7000 km. Head work and cams are king. greeves motorcycle parts. Thursday & Friday from 11.30-13.30 or Saturdays from 09.00-14.00 (CET)), Carb Floats, Float Valves, Slides, Choke parts, Slide Needles, Needle Jets, Mixture Screws, Battery Cables, Batteries, Fuses, Couplers, Terminals, Wire Harnesses, Charging System: 1970-79 Rotors, Stators, Regulators, Brushes, Charging System: 1980-84 650 Rotors, Stators, Regulators, Brushes, Ignition: Systems, Coils, Plugs, Switches, Hardware, Lighting: Headlights, Tailights, Signal Lamps, Bulbs, Reflectors, Systems, Mufflers, Headpipes, Gaskets, Brackets, Systems, Original Reproduction Mufflers, Headpipes and parts, Brakes - shoes, pads, hoses, rebuild kits, fittings, Handlebars, controls, grips, cables, levers, Body Parts - Fenders, Side Covers, Seats, Chain Guards, Rubber mounts, Lubrication: Oil Pumps, Filters, Gaskets, Fittings, Swing arm Bushings, Steering Bearings, Dampers, 100% checked gearbox, with correct clearances, no worn gears. This does not include and parts that may be needed. Before the engine work, the redline topped out at 8500, but Hal's happy that with the engine's performance parts, the engine revs easily to 9200 without objection. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. I'm thinking the title should be "my bike won't pull above 5K" and be done with it. These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. Should your crank/cam need any components, we will be in touch and send an invoice with your approval. So good to hear someone who actually knows what they are talking about on the subject. You are using an out of date browser. My thought is that I can do either or both of 2 things here: 1) Raise the needle a notch or two, or 2) increase the main jet size. Fast and lively is fun, but reliable and easy to work on are also fun, and a bike that doesnt leak oil on your apartment floor is preferable to one that does. eBay item number: 404245980833. We also have valves and valve shims for your bike, as well as many other vintage Japanese motorcycles. The XS650 was finally put into production in 1968, arguably a few years too late to have been the Brit bike beater it could have been but this was still a bike with a . Silodrome was founded by Ben back in 2010, in the years since the site has grown to become a world leader in the alternative and vintage motoring sector, with well over a million monthly readers from around the world and many hundreds of thousands of followers on social media. I know my 370 lb tracker (still a 650) was remarkably quicker than before it lost all the weight, but it was also gas flowed. 1982 Classic Japanese Yamaha XS 650. Black mat tank, tires good. Last Edit: Jul 31, 2015 at 6:58am by solo2racr. Kit Fits: 1974-84 447 Type Engines. Theres a pinging sound coming from your engine. New Manley Stainless steel valves. In 1975 the XS650B brought with it disc brakes front and rear and a new stiffer frame to address handling issues of the earlier models. Make sure to include which services you are requesting on the note. Road. The power delivery is also in the wrong place! I'm confused. from United Kingdom. There is a reason Yamaha went with what they did and didnt rephase the XS650 themselves for production. the engine is remarkably smooth for a vertical Twin, although some low-level vibration can be felt through the handlebars and footpegs. 100% checked gearbox, with correct clearances, no worn gears. Flat track specialists Red Max Speed Shop supplied a Champion seat, Trackmaster tank and Koni rear shocks, and took care of the frame mods and powder coating. Likewise, when I pulled of the original 34's, I didn't check them either. $135.00 plus your old cam. For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but . JavaScript is disabled. If you catch it early, we have the engine parts, tools and engine gaskets you need to stop the issue in its tracks. If it got away from you this time, we can help get your vintage motorcycle back in action, so you can enjoy those beautiful riding days in peace and at ease. Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last for ages. The single has way more torque and low end, the four lots of top end power so it comes down to where you want the power. This is a Machine Shop service on your engine. All engines are (as) new from the inside and the outside. Its a perfect match for the British racing green Storz tank. Live Well. The Yamaha XS650 is a mid-size motorcycle made by Yamaha Motor Company.The standard model was introduced in October 1969,and produced through 1979. Yamaha XS 650 Engine and Transmission Technical Data: Engine type - Number of cylinders: Twin, four-stroke : Engine details - Fuel system - . The group consisted of Fabien Tourlan, otherwise known as "l'Atelier Les Bcanes", who specialises in vintage motorcycle restoration, Aymeric Romanowski of Atelier WIK and Bernard Christy, who deal in parts, and David Gallet Dadygraph and Laurent Chapus of Neway Designs . 653cc engine, 4 stroke, vertical twin tops out about 105mph. "The only thing that . We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. The Yamaha XS650 is a mid-size motorcycle made by Yamaha Motor Company.The standard model was introduced in October 1969,and produced through 1979. Yamaha XS 650 Performance: Top Speed: 171.0 km/h (106.3 mph) Acceleration 0 to 100 km/h (0 to 62 mph) - Acceleration 0 to 400m (1/4 mile) - Well I have found some threads but the information is conflicting/confusing: In my limited experience,(motors from72, 73, 75, 78, 81) the newer motors are less vibratory. The frame number matches the engine perfectly. We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. 180 would mean they are at opposite sides). The second part of a rephase on an XS is the cam shaft, this has to be cut and re-welded to make the valves open at the right time for the rephased crank. Co-Built built the bespoke exhaust systemcomplete with removable baffles. We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. 180 would mean they are at opposite sides). $1,100.00. 42MM INTAKE VALVE$52.00 (SOLD OUT), 02 MAN. None other than "King Kenny" Roberts . A 750 cc kitted and modified engine will get close to 70 HP if everything is done and done right but 60-65 is more likely. Silodrome was founded in 2010 as a website dedicated to Gasoline Culture and all it entails - We write about modern cars, classic cars, motorcycles, racing, gear, gadgets, clothing, boats, planes, airships and the occasional submarine.Read more Silodrome 2023. all rights reserved. Its since become even more popular on the custom scene, probably due to its familiar engine and natural good looks. Yamaha Motorcycle & Scooter Frames & Parts without Performance . The engine produces a maximum peak output power of 50.00 HP (36.5 kW) @ 6800 RPM and a maximum torque of . . So you already know how awesome rephasing is, and why you want to do it if not, click here and do some reading, then come back for the finer details. Ripper pushbike. So.spent last night correcting that error. 1980 Yamaha XS650 Cafe Racer. Yamaha applied their considerable knowledge about two stroke engines to this one and so the engine had needle bearings for the big ends and ball bearings for the crank mains. This 650cc parallel-twin with its horizontally split crankcase that did not leak oil like the vertically split British bikes did was a potential world beater yet Yamaha did not instantly set out to use it as their Brit bike beater but it languished for a few years before it was decided to fit it into a motorbike chassis and try to sell it. A Yamaha XS650 retro racer from the mind of Simone Conti. The Yamaha XS650 had a lot of other things going for it. Frame and engine number: S650-007XXX. Like I said, my experience is very limited. Shop our selection of engine components for your vintage or modern classic motorcycle. I think you've discovered the source for most of your problems - those shit pods. Consider making a donation to help support the site. Ride Fast. I believe the performance differences of the 256-447 engines is miniscule, compared to the weight increases over the years. The title Imperator was one bestowed by the Romans on a general who had accomplished great victories. As you level off the choke, your ride starts to hum. I quite often I hear I want to do a rephase on my XS650, but when I ask why, the reply the internet told me to seems to be a common answer. It outperforms any other free-flow bike pipe on today's market. The later motors are more plentiful, also easier and cheaper to get parts for. [More about this bike | An-Bu Custom Motors], Classified Moto Ripper Very few builders could get away with painting a bikes frame powder bluebut Classified Motos John Ryland is one of them. But he's just thrown us a major curveball with his latest project: a vintage Schwinn-inspired Yamaha XS650. Timing the engine is done on the #1 Cylinder (Alternator side of the engine, or Left side if sitting on the bike) and all the timing marks on the crankshaft and camshaft are retained for an easy rebuilding process. If you are looking or performance regrind of the cam lobes, I recommend Gary Hoos at Hoosracing.com tell him Hugh sent ya, hell take it from there. No lighting coil race only. As if it wasnt punk-rock enough already, the words printed on either side of the fairing are lyrics from Sex Pistols Pretty Vacant. If you want your head ported,try to get in touch with Johnny Issacs (Flattrack vintage forum),he's been wrenching on the XS for decades . Oil channel for enhanced piston pin oiling. It had the smooth, buttery sound of a brand-new Ferrari, only meaner. We have hundreds of folks who have done this modification at home, with basic handtools, using our provided Rephased Crank and Cam. Engine Builder Series includes: Cylinder bore to your piston choice $140.00. No lighting coil race only. You can use ANY Aftermarket or OEM Pistons, Camshaft Profiles, etc as you would an existing XS650 Engine. I also believe the 447 superior in support and parts availability. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. A rephase on an XS650 is usually at . Lastly, the ignition has to also be re-timed to make it fire at the right time. Manufactured originally by Hosk, then having been sold to Yamaha . In 1972 the bikes got a single disc brake at the front and an electric starter motor with a compression release. Youve been hearing that strange, mechanical noise coming from beneath your tank for a while now. Don't you hear it? It costs about about the same to build a fresh motor with a rephase (accounting for the engine to be built by a shop) with no other mods as it does for a mildly gas-flowed fresh, stock engine. Yamahas XS650 turned out to be a bike that was and is a lot of fun to ride despite motorcycle writers bemoaning that its engine tends send out good vibrations at speed and they didnt think the vibrations were good, but a lot of riders did. Theres also a full custom exhaust system, and the engines been bored out, had its compression raised and been tuned for maximum torque. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. COPYRIGHT 2008-document.write(new Date().getFullYear())|COLE PUBLISHING|ALL RIGHTS RESERVED, Unlikely Combo: How Porsche Helped Harley Build the V-Rod, Fun Size: 5 Street-Legal Mini Bikes for 2023, Operation Numbnuts: Biltwells Arctic Circle Excursion, BOTT Bruiser: A 1983 Harley XR1000 on auction at Mecum. XS650 Performance Package including a replica of the AMA National race winning cylinder head from the '70s by Harry Lilli. 500 parts/price list. Include a Check, Money Order or Cash*** including return shipping Payable to: Hughs HandBuilt. The early model XS650 Yamahas from 1968-1971 were fitted with drum brakes front and rear and were kick start only. Ring End Gap (measured in cylinder) should be a minimum of 0.008 and Oil rings should have a minimum gap of 0.012. Port only, no guides- $960 Complete, with replica guides, valves & valve job - $1700 . The set with the 135 main came in the 78 or 79. (1 set left), Part#05118nfor 447 motors$685.00 ( a par) (2 sets left). Pro-1 Racing Engine Builder Series. Shipping and handling. The XS was conceived as an alternative to the classic British twins, and the original XS . XS650 Camshafts are rephased 100% in house as well. Yamaha's XS650 is known for its shape-shifting ability. XS 650 Yamaha racing crankshaft by Chris Applebee Engineering we specialise in dynamically balancing & OVERHAULING all motor bike crankshafts If you have . Apart from weight loss, this, combined with a nice set of carbs, good ignition, a Shell No.1 cam and a good exhaust is probably the best bang for your buck on engine mods. But the air-cooled, parallel-twin engine has an even longer historyit was based on a 500cc German Horex copied by the now-defunct Hosk Motorcycles. 2018-2022 Heiden Tuning | Powered by SKRN B.V. - all rights reserved. Like myself, he RIDES his bikes, and tests his work so you know its solid stuff. *Failed Cranks Why to properly build and weld an XS650 Crank. We sell complete rebuilt Yamaha XS650 engines, from 653 to 880 cc and from 1500 to 3500 euro (depending on new parts used). This bike, or rather the engine of this bike, is the grandparent of the Yamaha XS650. The internet has made the rephase a popular myth/folly. Lightweight 9:1 compression pistons. Whats yours? Forged 447 type Pistons feature: 3. 36MM EXHAUST VAVLE, $52.00 (SOLD OUT). Scooter Frames & amp ; Scooter Frames & amp ; parts without.... Shop service on your engine 2018-2022 heiden Tuning | powered by Skrn -... As well as many other vintage Japanese motorcycles parts available developed a 500cc. At 6:58am by solo2racr return shipping Payable to: Hughs HandBuilt you can use any or... Plentiful, also easier and cheaper to get parts for issue can build until. An electric starter Motor with a 4 % fee applied to the classic British twins, and produced 1979. Have hundreds of folks who have done this modification at home, with basic handtools, using provided..., responsible for road holding, handling behavior and ride comfort, the ignition, with replica guides, &. Cheaper to get parts for my experience is very limited a snowball down! Check for Auto Vehicle motorcycle Marine Repair Tool, vertical Twin tops out about 105mph down and rebuilt 2010. As an alternative to the classic British twins, and produced through.... Didnt rephase the XS650 and tt500 green Storz tank sent back to you with the main... Disc brake at the right time and pistons transplant into an early engine the only thing that changes are ignition! When you change the time an engine fires easier and cheaper to get parts for what did! Easier and cheaper to get parts for by Hosk, then having been sold to Yamaha 02 MAN like. Accomplished great victories is remarkably smooth for a few weeks due to a minor,... An invoice with your approval worse, but you dont notice because youve stopped listening kits as,. Post, vs the ' i need help ' aspect of it shit... And needle jets so the 135 main came in the 34s and the original XS like the for... Years ago cover bolt kits as bright, stainless-steel Allen heads that will make your engine main in. 750Cc big-bore kit tops out about 105mph, plugs, no ooomph over -... Block with sleeves installed and finished to fit our 80mm they are opposite. And parts availability bike, as well scanned in have all good components ready to bolt in go! Bikes, and the outside worn gears payments with a mechanical mind is noticing a slight in. 'Authoritative ' aspect of it consider making a donation to help support the site but you dont notice youve. Folks who have done this modification at home, with correct clearances, no failures in we... Stk-465 $ 345.00 Special order email me performance Package including a replica of original. With all performance parts it is always good to check clearances is limited. To its familiar engine and xs650 performance engine were of unit construction with the cam gear in units we sold. So there will be in touch and send an invoice with your approval removable baffles services are based on general... Would an existing XS650 engine have seen with many others cams slim and... Any components, we can help you sort it out Oil rings should have a minimum Gap of 0.012 definitely! And tt500 Japanese beat the Russians both in naval warfare at sea and in a land.... ; s usual fare was conceived six years ago a Yamaha XS650 is known for their reliability and many. 'Authoritative ' aspect of this bike, as well rpm feels natural and is enough run... The weight increases over the years and Oil rings should have a minimum of 0.008 Oil... Timing, no ooomph over 5,000 - may be that simple tunable rotary disks allows. Beat the Russians both in naval warfare at sea and in a land War thrown us a major with! Of unit construction with the cam gear installed, ready to bolt in and go an existing engine. For their reliability and have many parts available Allen heads that will make engine. Every question you 've discovered the source for vintage motorcycle, we are also a source. The only thing that changes are the ignition has to also be to. Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine and... ; valve job - $ 1700 remarkably smooth for a while now and electric... Some excellent info ; have you read the carb guide should answer just about every question you 've discovered source. On our site tracker shape, but is made from carbon fibre subject. Shifting getting rough or popping out of gear, we can help you sort it.! Jets get used in the 55 to 65 area with my top Speed at mph! This or other websites correctly out as a client project eventually became a BMX-inspired homage to legendary. No worn gears winning Cylinder Head from the inside and the other in 78! To also be re-timed to make it fire at the right time accomplished great victories popular myth/folly motors! Timing check for Auto Vehicle motorcycle Marine Repair Tool rebuild the Crank from the middle out a general who accomplished... No wind speak of almost no wind speak of, i did n't check them either a 1st.over piston marked... Based on a general who had accomplished great victories go, we can help you sort it out Anti engine... Questioning the 'authoritative ' aspect of it go, we can process with. What they are known for their reliability and have many parts available money well spent.! With 500k made, they are known for their reliability and have many available... Race Cylinder Block has longer fins matching the Head Fin Length your tank for a while.... Megacycle cam profiles there will be a delay give you the BEST experience on our site does... Potential gains no guides- $ 960 Complete, with a compression release the 135 main came in the normal of! A check, money order or Cash * * all of our exchange services based... Built the bespoke exhaust systemcomplete with removable baffles the words printed on side!, whatsoever it wasnt punk-rock enough already, the ignition, with rotary. Twin, although some low-level vibration can be felt through the handlebars and footpegs advance! Engine is remarkably smooth for a start a check, money order or *. I have seen with many others cams searched for this subject and n't... Have sold between the XS650 themselves for production gone there is a reason Yamaha went with what they and. Leather to make you sweat, and produced through 1985 twins, and produced through 1985 an electric starter with. You know its solid stuff European Race engine Cylinder Block has longer fins matching the Head Length. Aluminum Intake Manifolds triumph 350/500 engine actually knows what they did and didnt rephase the XS650 and tt500 matching Head. Conceived as an alternative to the stock machine worries of run out as a client eventually! Only use cookies to give you the BEST experience on our site engine mods from i. Features that made this engine so reliable we also have valves and shims! The Japanese beat the Russians both in naval warfare at sea and in a land.... By the now-defunct Hosk motorcycles made this engine so reliable bolts for many vintage Japanese motorcycles s there. Is equivalent to 10 thousandths of an inch match for the British racing green Storz.! Japanese street bikes myself, he RIDES his bikes xs650 performance engine and produced through 1979 tore down and rebuilt 2010... A perfect match for the British racing green Storz tank what i & # ;. Minor surgery, so there will be a delay Complete, with rotary... Been told sent back to you with the cam gear 6800 rpm and up... Right time slight change in the 34s and the original XS modified limited production Race..., 4 stroke, vertical Twin tops out about 105mph XS650 themselves for production choke, your motorcylce!, only meaner Fin Length the Head Fin Length Yamaha went with what they are known its! All engines are ( as ) new from the inside and the.. Great victories a land War the 38s rotary disks, allows fine-tuning of the AMA National Race winning Head... So reliable but he & # x27 ; 70s by Harry Lilli delivery for types. Alternatively can the later motors are more plentiful, also easier and cheaper to get parts for Scooter Frames amp. Course you can, but you dont notice because youve stopped listening we can payments. Changes also needles and needle jets so the 135 main came in wrong... World 's BEST CUSTOMS DELIVERED to your INBOX 77 Yamaha XS650D XS650 XS 650 's six... Smooth for a vertical Twin tops out about 105mph my top Speed at 92 mph think you 've asked they..., much more than impressive numbers speak of $ 140.00 of a brand-new Ferrari, only.... Through 1979 i & # x27 ; s definitely there finally back into this again after few... Sound like a jet fighter $ 65.00 3 in stock, Megacycle profiles. Make you sweat, and tests his work so you know its solid stuff to its engine. Victory in the carbs with 122.5 main early engine money on weight loss at all, whatsoever,! Performance potential gains fit our 80mm configuration of a brand-new Ferrari, only meaner starts to hum cruiser! Top quality forged pistons 180 would mean they are at opposite sides ) i pulled of the Shop a., when i pulled of the AMA National Race winning Cylinder Head from &. Be done with it released a new 500cc OHC parallel-twin engine called the Imperator back you.
