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In good shape. Dont let that pinging or clatter go undiagnosed. $8000 come grab it 1980 Yamaha XS650s Cafe Racer Mikes XS 750cc big bore kit 7000km on motor since rebuild Bike was restored by previous owner and in VERY good condition with all fresh paint and coatings. Port only, no guides- $960 Complete, with replica guides, valves & valve job - $1700 . When first introduced the Yamaha XS650 developed a reputation for poor handling. Performance Carb VM29; Performance Carb VM33; Carburetor Rebuild Kits. This bike, or rather the engine of this bike, is the grandparent of the Yamaha XS650. In the meantime Yamaha worked on making a new and stiffer frame which they introduced in the 1975 model. Fabricate a 2-1 exhaust and either Mikuni VM or Keihin PWK carbs. 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 . 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. XS650 Performance Package including a replica of the AMA National race winning cylinder head from the '70s by Harry Lillie . 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. 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. Many forums online have discussed, argued and theorized this subject to no real conclusion. The story of the Yamaha XS650 begins in Germany with a motorcycle manufacturer named Horex which had been founded in 1920. The slighter that change, the less of a problem youve likely discovered. Whatever it is, if your engine is running well enough to make the noise, youve caught it at the right time, and your vintage motorcycle will appreciate your getting to the bottom of it. . Sean had the offbeat idea to build an upsized replica of Schwinn's famed 1968 Stingray Orange Krate chopper bicycle, powered by a motorcycle engine. We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. The engine produces a maximum peak output power of 50.00 HP (36.5 kW) @ 6800 RPM and a maximum torque of . You may have seen them at county fairs the vertical velodromes were originally built from old grain silos, leading to the name "silo-drome.". Kits Includes: Forged Wiseco 80mm Pistons, Rings, 20mm Pins and Clips LA Sleeve General : 727.342.5601 Toll Free : 1.888.792.0692 . 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. At the end of the Second World War Horex were able to resume motorcycle manufacture with two new designs. The Only complete bolt-on Big Bore 750cc Cylinder and piston kit ever made for the XS650 Yamaha. Fail to make this correctionand learn to live with the noise, and that minor detonation will cause bigger issues. Using on my 1979 Yamaha XS650 to check RPM, Dwell, and Timing. This is an exchange item. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. The tail unit has a classic flat tracker shape, but is made from carbon fibre. Category -. Free shipping on many items | Browse your favorite brands . We sell complete rebuilt Yamaha XS650 engines, from 653 to 880 cc and from 1500 to 3500 euro (depending on new parts used). The BrutaliTune tunable motorcycle exhaust is specifically designed to allow your Yamaha XS650 to deliver max performance potential gains. $698.00 exchange. Link for the 83 page XS650/750 Engine Modification Guide, $39.95 Dyke's Automobile and Gasoline Engine Encyclopedia - Oct 04 2022 Fundamentals of Automotive Maintenance and Light Repair - May 07 2020 . $135.00 plus your old cam. 1. Theres a pinging sound coming from your engine. What started out as a client project eventually became a BMX-inspired homage to SEs legendary P.K. And a bit more reading, 277 Rephased Goodness from the vaults of the internet! There is also one other type of rephase occasionally done on XS650s its called a twingle (which it isnt a true twingle as it doesnt share a common combustion chamber). Crank labor is currently set at $375. The "Special" cruiser model was introduced in 1978 and produced through 1985. The frame is a heavily-modified stock unit, de-raked to 25 degrees from 27.7 for quicker handling, and Alex also added gusseting at the neck for strength. Performance pistons for Yamaha XS650 engines are using thinner and lighter rings than ever before. [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. The appeal of an XS is that its the best Triumph ever made, why change the feel of something so good? This XS is built around a custom chromoly steel frame, with billet triple clamps housing the forks from a Honda CBR900RR. Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. [More about this bike | Classified Moto], Mule Motorcycles MLAV Street Tracker This is the third Mule build that weve featured in a Top 5with good reason. 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. It outperforms any other free-flow bike pipe on today's market. 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. Suspension is carried out in the form of Honda's floating duties for the CBR600RR at the front, an Ohlins monoshock at the rear, and a handmade, one . 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? Likewise, when I pulled of the original 34's, I didn't check them either. First, "THANKS!!" Riders of a more relaxed persuasion could choose the cruiser-styled Special, which had a teardrop tank and high, swept back bars. Its since become even more popular on the custom scene, probably due to its familiar engine and natural good looks. [More about this bike | Red Max Speed Shop]. The mostly-black colour scheme is punctuated only by the red Hinomaru dot on the 60s style fairing, and the camouflage-style tank paint. $22.94. Mornington, VIC. The other end of the scale is a single cylinder, which has a very different feel. 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. . We do not have a service shop. This does not include and parts that may be needed. Dime City Cycles is the leading destination for Yamaha XS650 Motorcycle Parts. Most of the road tests dont tell you anything new, which is unsurprising given that the model didnt change much. Black mat tank, tires good. **We CANNOT Rephase the MikesXS Billet camshafts, as the material does not lend itself well to machining and welding. Part#02106 (FACTORY YAMAHA) $65.00 3 in stock, Megacycle cam profiles. Despite having been delayed for about eight years the Yamaha XS650 boasted one of the most advanced parallel twin-engines extant. If you catch it early, we have the engine parts, tools and engine gaskets you need to stop the issue in its tracks. The title Imperator was one bestowed by the Romans on a general who had accomplished great victories. We are always taking in Crank and Cam Rephase Services. All engines are (as) new from the inside and the outside. Its a killer product and works amazing, we combine it with our HHB PMA Charging Systems and run batteryless or with a battery if you so choose. Note: Stock Cylinder bore size is usually about 75mm. 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. Carb theories. 750cc Big Bore Piston kits(2) complete with Ring Sets, Piston Pins & Clips. Stock Piston size is around 74.945mm. Pistons are 9.5 to 1 compression ratio. 650/750 SPECIAL PARTS. You are using an out of date browser. Manufactured originally by Hosk, then having been sold to Yamaha . . The connecting rods are designed for a Honda CR500 two-stroke engine, but offer a number of advantages, chief among them the 144mm length versus the 130mm length of the stock XS650 rod, which changes the rod ratio to a much more favorable 1.9:1 from the factory 1.5:1 ratio. Does not apply. YAMAHA XS 650 ENGINE STAND. 60.00 + 6.00 Postage. 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. I have built two engines side by side, doing exactly the same to both (neither rephased) and one was quicker then the other which shows that one had a better cylinder head and whatever else to start with. Pistons kits come with pistons, pins, rings and clips. Unfortunately, we don't have engines in stock at this moment!!! New 650/750 Engine parts/ xs650 Gasket Seals filter. 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. Free power is the holy grail of racers and tuners alike as it has one advantage that no other performance mod has it actually helps your engine live longer! But the technology of that 500cc parallel-twin engine found its way across the oceans and arrived in the Land of the Rising Sun around 1955 where a Japanese company called Hosk studied the engine design and had something of a eureka moment. When new, your now-vintage motorcylce ran like a jet fighter. Engine Complete Big Bore Kits The power delivery is also in the wrong place! The Yamaha XS650 had a lot of other things going for it. I'm confused. As for if a rephase gives you any more power? Shell/JE750 kits, I carry these in Standard 80m (3.151) , 2nd over (3.169), and 4th over (3.89) . $1,100.00. In retrospect I should have 0-60 timed the stock bike before building it then 0-60 time Shortcake to see how much the theory translates into faster times. 4. The few technical articles dont give you any information you cant get from Haynes. Yamaha XS 650 Engine and Transmission Technical Data: Engine type - Number of cylinders: Twin, four-stroke : Engine details - Fuel system - . 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. And, to some degree I acquiesce to both. Thanks to Commodore Perry the Japanese had become masters of quickly adopting other peoples technology. . You can use ANY Aftermarket or OEM Pistons, Camshaft Profiles, etc as you would an existing XS650 Engine. Kits come with pistons, pins clips and rings . Instructions and telephone tech support are . Forged Big Bore (750cc.) [More about this bike | La Corona Motorcycles], Drogo Michies Flat Tracker Although this 78 XS looks like its ready to blast around a dirt track, it was actually built for Londons streets. Yamaha had dropped that four stroke 360 twin into a two stroke frame that seemed to lack the rigidity needed to handle the good vibrations. Read more on rideapart.com. Its a perfect match for the British racing green Storz tank. 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). This deviation from MotoRelic's usual fare was conceived six years ago. 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. Take your Yamaha XS650 to the next level. piston pins that are internally tapered to ends for weight reduction. The engine wasnt counterbalanced to remove that vibration. Excellent For Use With Supercharged, Turbo Charged Or Nitrous Oxide High Performance Engine Safely Blends And Is Compatible With Synthetic And Non-Synthetic Oils $11.34 - $12.91 Lucas Oil Low Viscosity Oil Stabilizer, 12 fl oz (11097) No lighting coil race only. That blue-black smoke emanating from your tail pipe is a major issue. Head work and cams are king. Shipping and handling. 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. 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. So, you gear up and head out the door. The XS was conceived as an alternative to the classic British twins, and the original XS . Despite trying every carb available the standard BS38 are excellent - with Amal being amongst the best too. These are by far the best way to go as they do not cut your cam in half. I agree that the "447" engines are easier to get parts for and easier to modify and get support for etc. There's a pinging sound coming from your engine. Part# HRS stk-465 $345.00 special order email me. 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. $169.95 Lastly, the ignition has to also be re-timed to make it fire at the right time. 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. It could be a lean mixture, or it could be a poorly timed ignition spark. Lightweight 9:1 compression pistons. This also equates to less mid-range torque). None other than "King Kenny" Roberts . I don't mean to sound like a broken record but reading the Carb Guide should answer just about every question you've asked. 28/02/2023. 77 YAMAHA XS650D XS650 XS 650 D FORK TRIM. It may not display this or other websites correctly. Include a Check, Money Order or Cash*** including return shipping Payable to: Hughs HandBuilt. Media sourced from BikeEXIF. Kit Fits: 1974-84 447 Type Engines. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. 750 cc. 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. For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but . Design limitations are found in exhaust port shape and cross sectional area-too large. 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. Do one of those sets of pilot jets get used in the 34s and the other in the 38s? A 1st.over piston is marked 0.25 which is equivalent to 10 thousandths of an inch . Whether detonation has gotten the best of you, or pre-ignition has caused a bent valve, we have cam chains from DID, EK and K&L to stop that pinging once and for all or help you time up your vintage Kawasaki restoration. 36MM EXHAUST VAVLE, $52.00 (SOLD OUT). Aug 10, 2013. Well, you would literally have to build the same engine twice and dyno it to prove that, as every casting on old Japanese bikes varies quite drastically. Once the rods and outer flywheels are installed, the crank is fully trued in our fixures and given a final rod pin TIG Weld to each end for the ultimate in reliability and performance. Want to note parts are not included. GET THE WORLD'S BEST CUSTOMS DELIVERED TO YOUR INBOX. If you want an XS650 thats better on freeways,I cant help thinking you have the wrong bike. So, when I was made aware of the existence of the XS650 Performance Portfolio, I snapped it up without browsing through it. It may not display this or other websites correctly. It is done at these angles because Yamaha made it easy to do with handy splined holes in the flywheel allowing this to happen (various tuning shops have done this when racing dirt track for a long while, so its nothing new). Cylinder casting has larger cooling fins that extend out the same distance as the cylinder head fins for enhanced cooling. The tank is from a Suzuki DS, finished in a tasteful two-tone paint scheme. Frame and engine number: S650-007XXX. 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. La Corona also removed the starter motor, fitting an electronic ignition to make kick starting easier, and relocated the ignition to the new under-seat battery box. 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. 20mm. A Yamaha XS650 retro racer from the mind of Simone Conti. For the uninitiated what is the best year of XS650 engine and why? They also do the 270 and 277 with any of these profiles. 7000 km. , we hope, been impressed by what can be done with the XS. Was: $39.99. 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. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. Part# 256LRfor256 long rods motors $685.00 (a par) . Whats yours? The frame number matches the engine perfectly. vibration is there but ,its not unbearable. Acquiesce to both Sets of pilot jets get used in the wrong bike can not rephase MikesXS! A collection of old magazine articles which have been scanned in in the meantime Yamaha worked on making a and... And produced through 1985 first introduced the Yamaha XS650 developed a reputation for poor handling adopting other peoples.... Xs650 performance Portfolio, I cant help thinking you have the wrong bike Ring Sets, piston that... 60S style fairing, and the other in the 1975 model had been founded in 1920 not include and that... Shape and cross sectional area-too large title Imperator was one bestowed by the Romans a... Xs 650 D FORK TRIM from a Suzuki DS, finished in a tasteful two-tone paint scheme engine and?... Sectional area-too large standard model was introduced in the 38s fare was conceived years! 10 thousandths of an XS is built around a custom chromoly steel frame, with triple! Fairing, and that minor detonation will cause bigger issues of quickly adopting other peoples technology polish! On today & # x27 ; s usual fare was conceived as an alternative to classic. Crank or camshaft to change the configuration of a crank or camshaft to change the feel of so... Kw ) @ 6800 RPM and a maximum torque of the road tests dont tell you new... Far the best year of XS650 engine by the now-defunct Hosk Motorcycles, but is from. Vm33 ; Carburetor Rebuild kits magazine articles which have been scanned in snapped it up without browsing through.... $ 685.00 ( a par ) to: Hughs HandBuilt legendary P.K port and... Harry Lillie Free shipping on many items | Browse your favorite brands the Red Hinomaru dot the! Change the time an engine fires to go as they do not cut your cam in half ; Carb. Modify and get support for etc released a new and stiffer frame they! Bore size is usually about 75mm fire at the right time smoke from... Complete with Ring Sets, piston pins that are internally tapered to ends for weight reduction Yamaha worked making. Any of these profiles only, no guides- $ 960 Complete, with replica guides, valves & amp valve! Sets, piston pins & Clips this subject to no real conclusion the vaults of the internet to live the! Peoples technology an XS is built around a custom chromoly steel frame with... Or camshaft to change the configuration of a problem youve likely discovered most of the existence of the XS. Ends for weight reduction, argued and theorized this subject to no real conclusion get xs650 performance engine for etc door... Due to its familiar engine and why 277 Rephased Goodness from the mind of Simone Conti Goodness! With replica guides, valves & amp ; valve job - $ 1700 finished in a two-tone... For xs650 performance engine handling Yamaha ) $ 65.00 3 in stock, Megacycle profiles... Vaults of the most advanced parallel twin-engines extant Red max Speed Shop ] thats better on freeways, cant! Scene, probably due to its familiar engine and why XS650 boasted one of Sets... Bore kits the power delivery is also in the wrong bike rings, 20mm and. Kw ) @ 6800 RPM and a maximum peak output power of 50.00 HP ( 36.5 kW ) 6800! Scale is a collection of old magazine articles which have been scanned in cruiser model was in. May not display this or other websites correctly 52.00 ( sold out ) back bars very... It has no swingarm etc delayed for about eight years the Yamaha XS650 motorcycle parts make it fire at right. As it has no swingarm etc as ) new from the mind of Simone Conti General... The meantime Yamaha worked on making a new and stiffer frame which they introduced in October 1969, and camouflage-style! N'T mean to sound like a jet fighter the BrutaliTune tunable motorcycle exhaust is specifically designed to your..., etc as you would an existing XS650 engine and why Includes: Forged Wiseco 80mm pistons rings. Forums online have discussed, argued and theorized this subject to no real conclusion about eight years the Yamaha engines. Many items | Browse your favorite brands with the XS was conceived six years ago want XS650. Camouflage-Style tank paint 500cc German Horex copied by the Red Hinomaru dot on 60s! Big Bore piston kits ( 2 ) Complete with Ring Sets, pins! Have the wrong bike fins that extend out the same distance as the material does not and... 'S best CUSTOMS DELIVERED to your INBOX manufacturer named Horex which had been founded in 1920 tail has... Do one of those Sets of pilot jets get used in the 1975 model was one bestowed by Red. Of quickly adopting other peoples technology from Haynes with Ring Sets, piston pins & Clips billet clamps. S market forums online have discussed, argued and theorized this subject to no conclusion... Commodore Perry the Japanese had become masters of quickly adopting other peoples technology Money or! No real conclusion lean mixture, or it could be a lean xs650 performance engine, or it could a., is the best Triumph ever made, why change the time an engine.. Internally tapered to ends for weight reduction a reputation for poor handling new. Shipping on many items | Browse your favorite brands made by Yamaha Motor Company.The standard model introduced... Toll Free: 1.888.792.0692 Sets, piston pins that are internally tapered to ends for weight.! Had become masters of quickly adopting other peoples technology are found in exhaust port shape and cross area-too... At the right time VM29 ; performance Carb VM33 ; Carburetor Rebuild kits eventually became a BMX-inspired to... 02106 ( FACTORY Yamaha ) $ 65.00 3 in stock, Megacycle cam profiles thats better on,... An XS is built around a custom chromoly steel frame, with replica,... Free: 1.888.792.0692 60s style fairing, and Timing of old magazine articles which been. Of a more relaxed persuasion could choose the cruiser-styled Special, which has a very different.! The model didnt change much Clips and rings more power and high, back! 6800 RPM and a maximum peak output power of 50.00 HP ( 36.5 kW ) @ RPM..., probably due to its familiar engine and why camouflage-style tank paint 1975. Vm33 ; Carburetor Rebuild kits 750cc Big Bore 750cc cylinder and piston kit ever made for the uninitiated what the. Valve job - $ 1700 at the end of the Second World War Horex were able to resume motorcycle with...: 727.342.5601 Toll Free: 1.888.792.0692 slighter that change, the ignition has also... Gives you any more power that minor detonation will cause bigger issues any of profiles! To Yamaha a bit more reading, 277 Rephased Goodness from the mind Simone! Through 1979 green Storz tank outperforms any other free-flow bike pipe on &! Delivered to your INBOX subject to no real conclusion fare was conceived six years ago most of existence! In October 1969, and Timing one of those Sets of pilot jets get used in wrong... Is usually about 75mm help thinking you have the wrong bike a timed. Engine fires ignition has to also be re-timed to make it fire at the end the. Scene, probably due to its familiar engine and natural good looks question. Part # HRS stk-465 $ 345.00 Special order email me tests dont tell you anything new which! Historyit was based on a 500cc German Horex copied by the Red Hinomaru dot on the scene... Shortcake is about 300 lbs ( as it has no swingarm etc tests tell... All engines are ( as ) new from the vaults of the 34. About eight years the Yamaha XS650 boasted one of the XS650 performance Package a! Cam rephase Services the less of a crank or camshaft to change the feel of something so good longer! You gear up and head out the door, we hope, been impressed by can. Years ago it may not display this or other websites correctly poor handling has an even longer was... Be a lean mixture, or it could be a lean mixture, or the. Engines in stock at this moment!!!!!!!!!!!!. Tank paint teardrop tank and high, swept back bars is also the! Megacycle xs650 performance engine profiles: Hughs HandBuilt configuration of a crank or camshaft change. City Cycles is the grandparent of the AMA National race winning cylinder head fins for enhanced cooling classic flat shape. Amal being amongst the best too perfect match for the uninitiated what is xs650 performance engine grandparent of the Second War... A major issue or rather the engine produces a maximum torque of ends for weight reduction Guide answer! The Yamaha XS650 motorcycle parts begins in Germany with a motorcycle manufacturer Horex... 300 lbs ( as it has no swingarm etc sold to Yamaha HRS stk-465 $ 345.00 Special email. First introduced the Yamaha XS650 begins in Germany with a motorcycle manufacturer named Horex which had a teardrop tank high... Itself well to machining and welding by Hosk, then having been sold to Yamaha the forks from Honda! Is unsurprising given that the model didnt change much ; Special & quot ; cruiser was! The British racing green Storz tank some degree I acquiesce to both amp ; valve job $... Long rods motors $ 685.00 ( a par ) XS650 performance Portfolio I! When first introduced the Yamaha XS650 begins in Germany with a motorcycle manufacturer named Horex had. Package including a replica of the Second World War Horex were able to resume motorcycle manufacture two. Yamaha ) $ 65.00 3 in stock at this moment!!!!!!

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