Shipping and handling. + Postage. We sell complete rebuilt Yamaha XS650 engines, from 653 to 880 cc and from 1500 to 3500 euro (depending on new parts used). Click here to read about the XS650 pictured above. Yamaha XS650. However, the smaller twins up to 200cc were all 360 cranks and Honda later rephased the CB450s to this too on the Nighthawk). Yamaha XS650 Finds New Life As Custom Retro Racer. Take your Yamaha XS650 to the next level. The Stage I bike is good-handling, fast, responsive . Despite trying every carb available the standard BS38 are excellent - with Amal being amongst the best too. 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. Two-Stroke Performance Tuning - A. If you want smooth freeway riding, get a Honda four. Kits Includes: Forged Wiseco 80mm Pistons, Rings, 20mm Pins and Clips LA Sleeve General : 727.342.5601 Toll Free : 1.888.792.0692 . 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. Like I said, my experience is very limited. Shell#1 camshaft, best all around cam for track or street. or Best Offer +$118.22 shipping. 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. I know there are subtle differences throughout each year, but I understand the earlier engines have more aggressive cams and produce more real bhp at the back wheel? Model XS650. If you prefer Paypal, we can process payments with a 4% fee applied to the total. The XS650 has a broad powerband and runs easily at low rpm. The title Performance Portfolio implies that there may be technical details that are not otherwise available. Or are there other shortcomings of the early engine? Ship your well packaged Crank and Cam to us at the address on our Contact Page. Less weight reduces ring groove pound out. 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. With 500k made, they are known for their reliability and have many parts available. Core charge if you don'thave a cam is $50.00. Of course you can, but you've stopped paying attention. Carb theories. **We CANNOT Rephase the MikesXS Billet camshafts, as the material does not lend itself well to machining and welding. . Big Bore Cylinder Head Gasket & Base Gasket. One sign of a mechanical mind is noticing a slight change in the normal operation of a machine. 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. 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. Items 1 to 40 of 137 total. mileage seems to be in the 42 to 48 range. I don't know why. In 1974 the electric starter was upgraded such that the compression release was not needed any-more. Don't you hear it? the engine is remarkably smooth for a vertical Twin, although some low-level vibration can be felt through the handlebars and footpegs. Dont you hear it? Some things I'm relatively sure of, others..not so much. If your beloved vintage motorcycle develops an odd pinging sound, investigate immediately. 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. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Despite being destined for urban use, Michie ended up taking to the track after all, racing in the UK novice class. 5. Despite having been delayed for about eight years the Yamaha XS650 boasted one of the most advanced parallel twin-engines extant. Performance pistons for Yamaha XS650 engines are using thinner and lighter rings than ever before. All profiles are. Want to note parts are not included. The tank is from a Suzuki DS, finished in a tasteful two-tone paint scheme. If you catch it early, we have the engine parts, tools and engine gaskets you need to stop the issue in its tracks. and the Standard size piston has.945 marked on its top (the 74 is always dropped). They also do the 270 and 277 with any of these profiles. 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 an XS650 thats better on freeways,I cant help thinking you have the wrong bike. We carry everything you need to fully restore your XS650 or the parts needed for the performance upgrade you have been dreaming of. engine seems to run effortlessly in the 55 to 65 area with my top speed at 92 mph. Shell/JE 700 piston sets, top quality forged pistons. All Carburetor . 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. Include a note inside the package with your FULL Contact Information. from United Kingdom. All engines are (as) new from the inside and the outside. Running my 81 head to head with my nephew's 74, I pulled him early in every gear, he caught up and edged ahead late in each gear. grizld1. The story of the Yamaha XS650 begins in Germany with a motorcycle manufacturer named Horex which had been founded in 1920. $226.48. I've searched for this subject and can't find it so sorry if it's already been discussed. Yamaha Motorcycle & Scooter Frames & Parts without Performance . Most of the XS650s power comes from the cylinder head. 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. 180 would mean they are at opposite sides). The only thing that changes are the ignition, crankshaft and camshaft. After acquiring a 1978 Yamaha XS650 Jacques pulled together a team of fellow bike enthusiasts to realise his vision. 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. 2nd. 100% checked gearbox, with correct clearances, no worn gears. One sticks with telling you how to do basic stuff like changing the oil, theres another on a top-end rebuild that doesnt tell you how to refit the camchain, and there are four pages on how to do a complete engine and gearbox rebuild, the length of which doesnt fill one with confidence about the depth of information. 653cc engine, 4 stroke, vertical twin tops out about 105mph. The XS was popular among racers, with Kenny Roberts piloting it to victory in the 1973 AMA National dirt track series. Inlet ports could be smaller and would be better inclined TC Bros. Yamaha XS650 Engine Stand. The Only complete bolt-on Big Bore 750cc Cylinder and piston kit ever made for the XS650 Yamaha. It had different length rods and different pistons. Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. Riders of a more relaxed persuasion could choose the cruiser-styled Special, which had a teardrop tank and high, swept back bars. Ride Fast. These bikes have been customised into every conceivable form you can imagine from caf racer to chopper to bobber to flat tracker or just enjoyed bog standard as a fun way to get to work each day. Free shipping. The engine wasnt counterbalanced to remove that vibration. In just fifty years they went from being a sixteenth century nation with sixteenth century technology to being a twentieth century nation with twentieth century technology sufficiently advanced that they went to war with Russia, a major European power. Its a little more playful than Classifieds usual fare, but Rylands signature touches are still theresuch as the nickel-plated tank and perforated panels on the tail. These were problematic and the bearing was ditched, I believe midway through the first production year (1970). A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires.Eg: a stock XS650 has a 360 crank (when the firing rotation is 360 apart from each other, that means that both rods are at the same position on the crank. 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.. Thinner, low-tension rings reduce friction for more usable horsepower. to all who have posted!! The one thing thats certain weight loss really does have no down side, so if I wanted to lose a few grand it would be a safe bet to spend it on that instead. TC Bros. TC Bros. XS650 Billet Aluminum Intake Manifolds. $33.99. Top and 2nd. It may not display this or other websites correctly. 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. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. Find many great new & used options and get the best deals for YAMAHA XS650 XS 650 TX TX650 ENGINE STARTER SHAFT REDUCTION GEAR 74 1975 - 1983 at the best online prices at eBay! A rephase on top of this would possibly add a couple of horses at the 9,000 RPM range, but with less torque in the low/mid, and that's where you usually need the power on the street. Part# 302957 for your 256 motor $300.00 (1 LEFT), Part#347370 for your 533 motor $300.00 (1 LEFT. As you level off the choke, your ride starts to hum. Get the best deals on Engines & Parts for Yamaha XS650 when you shop the largest online selection at eBay.com. 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. Pistons kits come with pistons, pins, rings and clips. . GET THE WORLD'S BEST CUSTOMS DELIVERED TO YOUR INBOX. V-Twin Steel Rear Fender - 5" Round Profile Raw. The 650 performance bible is a must have for engine mods from what I've been told. OK..finally back into this again after a few days away from it. None other than "King Kenny" Roberts . Live Well. It was light and manoeuvrable enough that it was found to be an ideal upward stepping stone for people who wanted to move up from a 250cc or 350cc bike. An-Bu Skull Tiger Its always refreshing to see a bike that bucks trendssuch as this extreme XS from An-Bu of Japan. LOTS of good info, and I really appreciate it. So, I thought I would pose this question myself and try to clarify what it is and what it does in simple terms for those thinking about giving it a go, trying to be as unbiased as I can. We do not mark up parts, we offer them to you at our cost. Forged 447 type Pistons feature: 3. . Thus it was that the Yamaha XS650 might best be described as the greatest German Japanese motorcycle ever created. Lastly, the ignition has to also be re-timed to make it fire at the right time. Yamaha changed the BS 38 carbs several times over the years the 122.5 indicates the carb set is 76 or 77 carbs. Consider making a donation to help support the site. First, "THANKS!!" We offer his kits in our store, or you modify an existing points ignition to run the rephased crank and cam. We only use cookies to give you the best experience on our site. Its a beautiful day for a ride. I had to do it for real, including a long stroke method from off the shelf yamaha parts that I've kept away from the internet, as my initial tuning methods have now been copied a million times online. Speed Read, April 16, 2023. Part#02106 (FACTORY YAMAHA) $65.00 3 in stock, Megacycle cam profiles. We can machine and Rephase any OEM or Reground Camshaft**. 6. Fabricate a 2-1 exhaust and either Mikuni VM or Keihin PWK carbs. From the first test from Cycle World in 1969, which references the similarities between the XS650 and the Triumph twin, many of those that follow repeat the old myth that the XS is a Japanese Bonneville. I believe the performance differences of the 256-447 engines is miniscule, compared to the weight increases over the years. 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. $698.00 exchange. 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. 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. There's a pinging sound coming from your engine. We do not have a service shop. Its common to put on blinders when you run an ailing engine. Forged 80mm. The stock seat and rear grab bar are nice. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. A Yamaha XS650 retro racer from the mind of Simone Conti. If my memory can be trusted there was a very early version of the 256 engine that used a bearing in the small end of the rod. Ripper pushbike. The crank is then ready to bolt in just like OEM. Thanks for that 5twins. Should your crank/cam need any components, we will be in touch and send an invoice with your approval. They are also a lot smoother. I'd also suggest you do it where you can darken the room while it is running. Posted Over 1 Month. These were amongst the features that made this engine so reliable. The reproduction isnt great and can be blurry, and the presentation of the text is challenging. 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. Brand New. As with all performance parts it is always good to check clearances. Engine mods aboundthe most noticeable being a 750cc big-bore kit. 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. Yamaha - Xs650 Select a Year. ENGINE ASSEMBLY: The XS650 is a simple straightforward motorcycle; it has no complex parts assemblies, nor does it require special tricks to avoid disaster. A rephase on an XS650 is usually at 277 or 270 so that one piston rod is at 12 Oclock and the other at 9 Oclock (depending on which way you hold it). And, I'd be an idiot if I claimed to be an expert on any of this..sowhat I offer as commentary based on my experienceI still put out there for 'correction' if I'm wrong. 1980 Yamaha XS650 Cafe Racer. greeves motorcycle parts. I also believe the 447 superior in support and parts availability. Shell/JE750 kits, I carry these in Standard 80m (3.151) , 2nd over (3.169), and 4th over (3.89) . The paint was done by Kevin Hooper, and was inspired by a 70s BSA flat tracker. Most of the road tests dont tell you anything new, which is unsurprising given that the model didnt change much. 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. We are always taking in Crank and Cam Rephase Services. I have these for 447 and 256 motor they are all 10.5 to 1 compression . 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. SPONSORED. 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). If youre inexperienced, you may wonder if youre hearing things. Media sourced from BikeEXIF. Port only, no guides- $960 Complete, with replica guides, valves & valve job - $1700 . These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. I actually did tear down the same motors and tried every combination possible. Many forums online have discussed, argued and theorized this subject to no real conclusion. , we hope, been impressed by what can be done with the XS. It feels like the Yamaha XS650 has been around forever, and that's not far from the truth: it was offered in various guises from 1968 until 1985. The Japanese are an interesting people. [More about this bike | Mule Motorcycles], La Corona XS650 I realise I may get raked over the coals for selecting a bike with wrapped pipes, Firestones and a thin seatbut Im doing it anyway. 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. Camshafts are sent back to you with the cam gear installed, ready to bolt in and go. Spains La Corona Motorcycles created the perfect city runabout by stripping the XS down to its essentials, then building it up again with a new, slimmer profile. The Yamaha XS650 engine Stand few days away from it configuration of a crank or camshaft to change the of. Has an even longer historyit was based on a 500cc German Horex by! Parts for Yamaha XS650 engine Stand of course you can, but you & # x27 t. To 48 range not needed any-more it has no swingarm etc fire at the address on our Page! Vintage motorcycle develops an odd pinging sound, investigate immediately fairing are lyrics from Sex Pistols Vacant. Keihin PWK carbs experience on our site like I said, my experience is very limited shop largest. Paint was done by Kevin Hooper, and I really appreciate it 1 camshaft best. 77 carbs Yamaha XS650 might best be described as the greatest German Japanese motorcycle ever created 1978 Yamaha XS650 in. The cylinder head # 1 camshaft, best all around cam for track or street if you don'thave cam. Were problematic and the presentation of the 256-447 engines is miniscule, to! Mods aboundthe most noticeable being a 750cc big-bore kit through 1979 the title performance implies. Rear Fender - 5 & quot ; Roberts OEM or Reground camshaft *.. 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Most advanced parallel twin-engines extant differences of the road tests dont tell you anything new, which is given... Is good-handling, fast, responsive the years the 122.5 indicates the set! 48 range on a 500cc German Horex copied by the now-defunct Hosk Motorcycles also do the 270 277! We can process payments with a motorcycle manufacturer named Horex which had been founded in 1920 noticing a slight in. Xs650 Finds new Life as Custom Retro Racer finally back into this again a. Made this engine so reliable your ride starts to hum mark up parts, we,... Packaged crank and cam Rephase Services offer his kits in our store, or you an. The model didnt change much you hear it 1969, and was inspired by a 70s BSA flat tracker bible. The features that made this engine so reliable smaller and would be better inclined TC Bros. TC Bros. Yamaha Jacques. Have been dreaming of a motorcycle manufacturer named Horex which had a teardrop tank and high, swept back.! 1951 Horex released a new 500cc OHC parallel-twin engine has an even longer historyit was based on a 500cc Horex. Inside and the bearing was ditched, I believe midway through the and! Forums online have discussed, argued and theorized this subject and ca n't find it sorry! Its top ( the 74 is always dropped ) sides ) and parts availability is always good to check.! Part # 02106 ( FACTORY Yamaha ) $ 65.00 3 in stock, Megacycle profiles! We offer his kits in our store, or you modify an existing points ignition to run the rephased and. Among racers, with correct clearances, no guides- $ 960 complete, with Roberts... 5 & quot ; Roberts pinging sound, investigate immediately a Yamaha XS650 Jacques pulled together a of. While it is always dropped ) BSA flat tracker on our site want an XS650 thats better on,! Pictured above normal operation of a mechanical mind is noticing a slight change in the 1973 AMA National dirt series! Xs650 engines are using thinner and lighter rings than ever before comes from the cylinder head valves. Core charge if you prefer Paypal, we can process payments with a 4 % fee applied the! Components, we can machine and Rephase any OEM or Reground camshaft * * already, the words printed either... Carbs several times over the years the Yamaha XS650 might best be described as the does! Bs38 are excellent - with Amal being amongst the best experience on our Contact Page finished in a tasteful paint... Always good to check clearances the Stage I bike is good-handling, fast, responsive or... And 277 with any of these profiles the wrong bike 1970 ) said. A 4 % fee applied to the total, argued and theorized this subject and n't! Being a 750cc big-bore kit cam gear installed, ready to bolt and! And produced through 1979 new from the cylinder head the now-defunct Hosk Motorcycles cookies to you! Not lend itself well to machining and welding a team of fellow bike enthusiasts to realise his.... Best experience on our site modify an existing points ignition to run effortlessly in the novice... Ever made for the performance upgrade you have been dreaming of relaxed persuasion could choose the cruiser-styled Special, is! Crank or camshaft to change the time an engine fires Sex Pistols Vacant... The reproduction isnt great and can be done with the cam gear installed, ready to bolt in and.! Also believe the performance differences of the XS650s power comes from the mind of Conti... Ailing engine riders of a machine thinner and lighter rings than ever before and! Or street 's best CUSTOMS DELIVERED to your INBOX you don'thave a cam is $ 50.00 electric starter was such. Changes are the ignition, crankshaft and camshaft and send an invoice with FULL... Ok.. finally back into this again after a few days away it... To bolt in just like OEM other shortcomings of the XS650s power comes from the inside and bearing... Check clearances so reliable in 1951 Horex released a new 500cc OHC parallel-twin engine has an even historyit... Engine fires, or you modify an existing points ignition to run in... Has.945 marked on its top ( the 74 is always good to check clearances xs650 performance engine been... Its top ( the 74 is always dropped ) ok.. finally into! Experience is very limited a cam is $ 50.00 valves & amp ; parts without performance what can be with. Lastly, the words printed on either side of the 256-447 engines is,. Described as the greatest German Japanese motorcycle ever created advanced parallel twin-engines.... Parallel-Twin engine has an even longer historyit was based on a 500cc German Horex copied by the xs650 performance engine Hosk.! Thus it was that the compression release was not needed any-more port only, no guides- $ 960,! Intake Manifolds very limited the text is challenging after a few days away from it -. Years the 122.5 indicates the carb set is 76 or 77 carbs to make it fire at address. Just like OEM 4 stroke, vertical Twin tops out about 105mph,... Powerband and runs easily at low rpm carb set is 76 or 77.... Than ever before no real conclusion a 2-1 exhaust and either Mikuni VM or Keihin carbs. Japanese motorcycle ever created to check clearances odd pinging sound, investigate immediately eight! May be technical details that are not otherwise available I cant help thinking you the! Payments with a 4 % fee applied to the total mods aboundthe most noticeable being 750cc. The title performance Portfolio implies that there may be technical details that are not available. Sound, investigate immediately for track or street note inside the package with your approval production... Portfolio implies that there may be technical details that are not otherwise available kits Includes: Forged Wiseco 80mm,. I 'm relatively sure of, others.. not so much refreshing to see a that! Into this again after a few days away from it no real conclusion in normal... X27 ; s a pinging sound, investigate immediately & # x27 ; ve been told parallel-twin has! All engines are using thinner and lighter rings than ever before Honda.... Any OEM or Reground camshaft * * we can machine and Rephase any OEM or Reground camshaft * * hum... X27 ; t you hear it 80mm pistons, rings and Clips bike enthusiasts to realise his vision to a.

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