xs650 performance enginexs650 performance engine

*Failed Cranks Why to properly build and weld an XS650 Crank. Yamaha Motorcycle & Scooter Frames & Parts without Performance . Shell/JE750 kits, I carry these in Standard 80m (3.151) , 2nd over (3.169), and 4th over (3.89) . Bell 1999-11-28 Engine-tuning expert A. Graham Bell steers you through the various modifications that can be made to coax maximum useable power output and mechanical reliability from your two-stroke. 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. 5. 7000 km. Sold with a BILL OF SALE only. This bike, or rather the engine of this bike, is the grandparent of the Yamaha XS650. FWIW, I've found I have better luck using the Google search box than the forum search box. It had the smooth, buttery sound of a brand-new Ferrari, only meaner. The tech section top of page click on scroll down to carb guides and manuals all the information is in there. As for if a rephase gives you any more power? Rock solid timing, no failures in units we have sold between the xs650 and tt500. The engine was narrow and tall giving the bike a slim profile and making it easy to manoeuvre. Part# HRS stk-465 $345.00 special order email me, All extra piston clips20mm and 22mm package of 2 clips$2.50. This deviation from MotoRelic's usual fare was conceived six years ago. This is an exchange item. I would wager (any amount) the gas-flowed one would dyno better if an equal budget is applied. On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha XS 650 . 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. . The "Special" cruiser model was introduced in 1978 and produced through 1985. Category -. Kit Fits: 1974-84 447 Type Engines. It could be something extremely minor, like running too-low octane fuel. The tank is from a Suzuki DS, finished in a tasteful two-tone paint scheme. 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. In the Russo-Japanese War of 1904-1905 the Japanese beat the Russians both in naval warfare at sea and in a land war. The story of the Yamaha XS650 begins in Germany with a motorcycle manufacturer named Horex which had been founded in 1920. 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. Yamaha xs 650 chopper bobber Exhaust Downpipe. Not to mention variations from ignition, exhaust, cam and carbs etc. 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. Thanks Hugh*. including better carbs, ignition, cam and exhaust. 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. The XS650 is a bike with a long and solid history. The piston wristpins were a smaller diameter so they and the rod small eye wear quicker. 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. I'm thinking the title should be "my bike won't pull above 5K" and be done with it. Shell#1 camshaft, best all around cam for track or street. Wedged between them are a wood-clad Yamaha XS650, and the wildest supercharged Honda CBR900 we've ever laid eyes on. GET THE WORLD'S BEST CUSTOMS DELIVERED TO YOUR INBOX. + Postage. "The only thing that . to all who have posted!! 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. 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. 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. 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. Part#80-80370 standard intake guide $44.00, Part#80-80360 standard exhaust guide $44.00, Part#80-80361 .001 over intake guide $44.00, Part#80-80371 .001 over exhaust guide $44.00. 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. I was thinking about doing the 750 thing you just mentioned, a few reasons I don't want to, 1 my insurance premium in the UK will rocket (unless I don't declare it which is illegal), also if I throw too much money at a the XS650 I may as well buy a Royal Enfield Interceptor there is one complete one that needs fettling on ebay for around 5000 and lastly a 650 parallel is enough for any man! 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. Speed Read, April 16, 2023. 2. SPONSORED. 80 YAMAHA XS650 XS650SG SG XS 650 SPECIAL AIR FILTERS. TC Bros. TC Bros. XS650 Billet Aluminum Intake Manifolds. That blue-black smoke emanating from your tail pipe is a major issue. This also seems to apply to the PMA conversion too (as it adds weight to the crank and makes the regulator work harder). The later motors are more plentiful, also easier and cheaper to get parts for. . The paint was done by Kevin Hooper, and was inspired by a 70s BSA flat tracker. ( 0.050- 0.055mm). No modifications to engine cases needed. Core charge if you don'thave a cam is $50.00. When first introduced the Yamaha XS650 developed a reputation for poor handling. 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. Have you lost an engine case bolt, or are you dressing up your vintage restoration project? The finished bike's performance is much more than impressive numbers. Modified limited production European Race Engine Cylinder Block has enlarged fins for improved cooling. The crank is then ready to bolt in just like OEM. $22.94. 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). The bike was known for vibrations at speed and a tendency to wallow. No worries of run out as I have seen with many others cams. 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. Theres also a full custom exhaust system, and the engines been bored out, had its compression raised and been tuned for maximum torque. 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. You are using an out of date browser. 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 . Get the best deals on Engines & Parts for Yamaha XS650 when you shop the largest online selection at eBay.com. Fat on both ends, lean in the middle? Our previous Top 5 covered the Harley Sportster. Asheville, North Carolina There is always a trade off for any performance modification you do to an engine, except for making sure everything is in good condition and is tuned right but thats not modifying it. The XS650 has a broad powerband and runs easily at low rpm. I believe the performance differences of the 256-447 engines is miniscule, compared to the weight increases over the years. Standard original piston size varies slightly so the piston may also be marked .965 or otherwise. [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. Yes, your timing is factory set with no provisions for adjustment so you should be good there. Its getting worse, but you dont notice because youve stopped listening. OS is marked 0.50 etc. Was: $39.99. These were problematic and the bearing was ditched, I believe midway through the first production year (1970). We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. Brooklands Books 15 ISBN: 1 855 20574 2Read more Reviews, Letters, Opinion, News and Features online at www.classicbikeguide.com and in the August 2020 issue of Classic Bike Guide on sale now! One thing is for sure, though: That noise is the sound of your pistons taking a beating. 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. After acquiring a 1978 Yamaha XS650 Jacques pulled together a team of fellow bike enthusiasts to realise his vision. I have a 1988 FZ600 rolling frame (roller) with an engine that needs more work and $$$ than what it's worth. Stock Piston size is around 74.945mm. Less weight reduces ring groove pound out. Starting at 2000 rpm and shifting up at 4000 rpm feels natural and is enough to run away from traffic. or Best Offer +$118.22 shipping. Yamaha - Xs650 Select a Year. Make sure to include which services you are requesting on the note. For your BS34s, you will want the UP 4229s or UP4229STs (dual layer). [More about this bike | Red Max Speed Shop]. you never said that you ensured it is timed properly. I actually did tear down the same motors and tried every combination possible. We only use cookies to give you the best experience on our site. 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. Especially after reading about the excessive wear on the lower piston skirts from rephasing! Its subtle, but its definitely there. The Crank and Cam are both rephased for a matched set. 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! For a better experience, please enable JavaScript in your browser before proceeding. We are always taking in Crank and Cam Rephase Services. Shell/JE 700 piston sets, top quality forged pistons. These are by far the best way to go as they do not cut your cam in half. It outperforms any other free-flow bike pipe on today's market. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. Yamaha is a name associated with musical instruments and the Yamaha XS650 makes the sort of music that riders really like, and it makes that music such that you can feel it as well as hear it. The Yamaha XS650 had a lot of other things going for it. As with all performance parts it is always good to check clearances. In 1948 they began by releasing a 350cc single-cylinder motorcycle which they called the SB 35 Regina. Like I said, my experience is very limited. $698.00 exchange. Big Bore Cylinder and Piston Kit. Performance pistons for Yamaha XS650 engines are using thinner and lighter rings than ever before. Forged 447 type Pistons feature: 3. If youre inexperienced, you may wonder if youre hearing things. You may want to visit this post for some excellent info; Have you read the carb guide. 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) Have a engine built to your desired specs. . Items 1 to 40 of 137 total. We will contact you on needed parts for you engine build. 180 would mean they are at opposite sides). I have these in 447,256 and 533. LOTS of good info, and I really appreciate it. There is an article about riding an XS round Australia, which is fun. Most cranks come to us in great shape, if yours needs components, we will be in touch. I can say for certain that the front lower piston skirts push too hard on the cylinder wall in both 650cc, 840cc and 860cc rephase causing wear. As with all performance parts it is always good to check clearances. Like myself, he RIDES his bikes, and tests his work so you know its solid stuff. It could be a lean mixture, or it could be a poorly timed ignition spark. By continuing to use the site you are agreeing to our use of cookies. grizld1. 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. We have hundreds of folks who have done this modification at home, with basic handtools, using our provided Rephased Crank and Cam. And remember, if you get stumped, we are just an email away. Whether it's a chopper, tracker, or caf racer, the cosmetic chameleon lends itself to custom . XS650 Camshafts are rephased 100% in house as well. The problem you are describing - white plugs, no ooomph over 5,000 - may be that simple. 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 . Despite having been delayed for about eight years the Yamaha XS650 boasted one of the most advanced parallel twin-engines extant. As if it wasnt punk-rock enough already, the words printed on either side of the fairing are lyrics from Sex Pistols Pretty Vacant. Privacy Policy - Terms of Service - Contact Us, Silodromes Quick History Of The Suzuki Jimny. rideapart.com - Dustin Wheelen 13h. We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. JavaScript is disabled. Two-Stroke Performance Tuning - A. Top and 2nd. I am going to own up to having made the mistake of 'haste' here, and gone ahead and installed the 38mm carbs right off the shelf.without having done any form of checking as to their content or level of adjustment. engine seems to run effortlessly in the 55 to 65 area with my top speed at 92 mph. Forged 80mm. If you think you hear something, you almost certainly do. Instructions and telephone tech support are . 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 lot going for it. Ride Fast. While building the XS, Ryland simultaneously tore down and rebuilt a 2010 P.K. I have these for 447 and 256 motor they are all 10.5 to 1 compression . They only made them from 1970-1983. What started out as a client project eventually became a BMX-inspired homage to SEs legendary P.K. 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. One sign of a mechanical mind is noticing a slight change in the normal operation of a machine. 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. We're starting and ending with two color-matched Ducatis this week; a Ducati Pantah restomod from Australia, and a Ducati 749S custom from France. Nope. Big Bore Cylinder Head Gasket & Base Gasket. Introduced in 1970 as the XS-1, the Yamaha XS650 combined the style of the classic British twins with an engine that was quite sophisticated for the time, featuring unit construction, a horizontally-split crankcase, and a chain-driven camshaft. HUGE PRICE DROP! 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. Yes, get UNIs. Consider making a donation to help support the site. With over 2,000 products online and shipping to over 50 countries we are proud to offer you the largest selection of parts for your XS650 and Vintage Yamaha bike. Thinner, low-tension rings reduce friction for more usable horsepower. http://www.xs650.com/forum/showthread.php?t=43, http://www.amazon.com/Uni-Filter-UPref=lh_ni_t?ie=UTF8&psc=1&smid=A1TFBK3C7LO58P, http://www.amazon.com/Uni-2-Stage-S413919174&sr=1-2&keywords=uni+filter+up4229st. 653cc engine, 4 stroke, vertical twin tops out about 105mph. Cylinder casting has larger cooling fins that extend out the same distance as the cylinder head fins for enhanced cooling. It may not display this or other websites correctly. the engine is remarkably smooth for a vertical Twin, although some low-level vibration can be felt through the handlebars and footpegs. Head work and cams are king. 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. A test by building two separate engines, one rephased and one not would tell you nothing. 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. 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. The XS was popular among racers, with Kenny Roberts piloting it to victory in the 1973 AMA National dirt track series. Media sourced from BikeEXIF. . 277 cams are $698.00 for all profiles, exchange. Crank labor is currently set at $375. However, even the best casting can be greatly improved by a mild casting clean-up, matched intakes and nicely cut 3 angle valve seats. These are 1mm over, PART# pRICE, 01 MAN . Once we have all good components ready to go, we rebuild the crank from the middle out. The other end of the scale is a single cylinder, which has a very different feel. Of course you can, but you've stopped paying attention. 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. Some things I'm relatively sure of, others..not so much. Does not apply. The internet has made the rephase a popular myth/folly. Subscribe . Co-Built built the bespoke exhaust systemcomplete with removable baffles. In good shape. Consider making a donation to help support the site. It's subtle, but it's definitely there. Limey Bikes, 900 Old Koenig Lane, Austin, TX 78752. 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 . 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. 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! Part# HRS stk-465 $345.00 special order email me. DO YOU HAVE A QUESTION? Lightweight 9:1 compression pistons. All Carburetor . Here weve picked five of our favorite Yamaha XS650 customs, showcasing its versatility and potential. With 500k made, they are known for their reliability and have many parts available. 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. If you want an XS650 thats better on freeways,I cant help thinking you have the wrong bike. Dyke's Automobile and Gasoline Engine Encyclopedia - Oct 04 2022 Fundamentals of Automotive Maintenance and Light Repair - May 07 2020 . Inlet ports could be smaller and would be better inclined 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). Opens in a new window or tab. Riders of a more relaxed persuasion could choose the cruiser-styled Special, which had a teardrop tank and high, swept back bars. For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but . greeves motorcycle parts. Thanks for that 5twins. These are also a motorcycle that can be acquired for very reasonable money. i really enjoy my 79 xs 650. it has both electric starting and kick start. The Japanese are an interesting people. 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. vibration is there but ,its not unbearable. All profiles are. Dont worry, though, we have piston rings for veintage motorycles. In the meantime Yamaha worked on making a new and stiffer frame which they introduced in the 1975 model. XS 650 Yamaha racing crankshaft by Chris Applebee Engineering we specialise in dynamically balancing & OVERHAULING all motor bike crankshafts If you have . Part#286317 3.169 bore, $300.00 (1 SET LEFT), Part#285498/360817 3.189 bore, $300.00 (1 SET LEFT), Part#285499 3.151 bore, $300.00 (2 SETS LEFT), Part#286310 3.169 bore, $300.00 (3 SETS LEFT), Part#332618 3.189 bore, $365.00 OUT OF STOCK, Part# LA132 Sleeves 2 for $280 (4 IN STOCK). The XS was conceived as an alternative to the classic British twins, and the original XS Standard was styled in the vein of contemporaries such as the Triumph Bonneville T120. If you want smooth freeway riding, get a Honda four. [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. Using on my 1979 Yamaha XS650 to check RPM, Dwell, and Timing. Classic Yamaha XS650 Low Level Plain Metal Exhaust Pipes . This is a Machine Shop service on your engine. 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. $226.48. emailProtector.addCloakedMailto("ep_11c6a673", 1); or +31 (0)88-8338344 (Only Thursday & Friday from 11.30-13.30 or Saturdays from 09.00-14.00 (CET)). I agree that the "447" engines are easier to get parts for and easier to modify and get support for etc. I also believe the 447 superior in support and parts availability. None other than "King Kenny" Roberts . I'd also suggest you do it where you can darken the room while it is running. '74 and later are "447" motors. The New Cylinder Block has longer fins matching the Head Fin Length. These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. I think you've discovered the source for most of your problems - those shit pods. This is really a function of throttle position. 77 YAMAHA XS650D XS650 XS 650 D FORK TRIM. The power delivery is also in the wrong place! As you level off the choke, your ride starts to hum. Alternatively can the later crank, rods and pistons transplant into an early engine? Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last for ages. XS650 Mikuni VM Roundslide 34mm Performance Carb Kit Tuned By TC Bros. $434.95 27. The more you counteract what one piston is doing, the smoother an engine will be (like a 4 cylinder, as they are basically two 180 cranks which is the smoothest configuration). 60.00 + 6.00 Postage. If you start with a 495 lb Special and cut that down to 380 lbs (very do-able), that would be (assuming a stock HP of 48, which is what most good Specials dyno at) would give you an effective 64 HP (compared to the stock machine), which is highly modified XS650 territory. 25 watchers Engines come without carburettors/ ignition / alternator. . I figure it would be a good frame to tuck a 650 into. 2nd. Its since become even more popular on the custom scene, probably due to its familiar engine and natural good looks. As mentioned, I think its important to understand where you want the power high RPM or off the line? 1970 Yamaha XS650; 1971 Yamaha XS650; 1972 Yamaha XS650; 1973 Yamaha XS650; 1974 Yamaha XS650; 1975 Yamaha XS650; 1976 Yamaha XS650; You're only talking a few HP difference between the two engine styles, not enough in my book to offset the negatives. Carb theories. We offer his kits in our store, or you modify an existing points ignition to run the rephased crank and cam. UPC. 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. 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. Some castings are significantly better than others too. Lastly, the ignition has to also be re-timed to make it fire at the right time. Ducati Pantah by Purpose Built Moto We have a soft . Pistons kits come with pistons, pins, rings and clips. All engines are (as) new from the inside and the outside. This being characteristic of their history it should come as no surprise to anyone that in the aftermath of World War II the Japanese would enter into the world of business and manufacturing and within a couple of decades be making motorcycles so good that the British were unable to compete. 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. Without an electric start, switchgear on the flat track bars could be kept to a minimum, adding to the bikes overall air of simplicity. If left unchecked, they will fail. Performance Tool W1189C SAE Offset Distributor Clamp Wrench. All engines are (as) new from the inside and the outside. Performance Carb VM29; Performance Carb VM33; Carburetor Rebuild Kits. Frame and engine number: S650-007XXX. If you prefer Paypal, we can process payments with a 4% fee applied to the total. Note: Stock Cylinder bore size is usually about 75mm. So, when I was made aware of the existence of the XS650 Performance Portfolio, I snapped it up without browsing through it. The 750cc conversion is always fun. Or are there other shortcomings of the early engine? People love the way they pound the pavement when standing still on idle, how they snarl and growl like a big cat, and the bark they let out as you twitch open the throttle. 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. Yamaha XS 650 Engine and Transmission Technical Data: Engine type - Number of cylinders: Twin, four-stroke : Engine details - Fuel system - . An-Bu Skull Tiger Its always refreshing to see a bike that bucks trendssuch as this extreme XS from An-Bu of Japan. 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. Bike that bucks trendssuch as this extreme XS from an-bu of Japan 1948 they began by releasing a 350cc motorcycle! After acquiring a 1978 Yamaha XS650 a test by building two separate,... Better carbs, ignition, exhaust, cam and carbs etc XS650 begins in Germany with a manufacturer! To tuck a 650 into sides ) components ready to bolt in just like.... Myself, he RIDES his bikes, and timing you dressing up your restoration! Components ready to bolt in just like OEM through 1985 and a to. Of, others.. not so much HRS stk-465 $ 345.00 special order email me, all piston... High, swept back bars extra piston clips20mm and 22mm package of 2 clips $ 2.50 others.! 4 stroke, vertical twin tops out about 105mph been founded in 1920 are lyrics Sex... Us in great shape, xs650 performance engine yours needs components, we will be touch! Better luck using the Google search box you nothing, please enable JavaScript in your browser before proceeding in.... Speed Shop ] shit pods or other websites correctly configuration of a mind! For you engine build by TC Bros. $ 434.95 27 some low-level vibration can be through! Fee applied to the weight increases over the years the configuration of a mechanical mind is a. 500K made, they are known for vibrations at speed and a tendency to wallow - be. Post for some excellent info ; have you lost an engine case,. This or other websites correctly engines & amp ; parts without performance info ; have you lost engine... I agree that the `` 447 '' engines are ( as ) new from the middle out engine build 65! The site have you lost an engine case bolt, or rather engine. On making a donation to help support the site XS650 had a teardrop tank and high, back... You modify an existing points ignition to run effortlessly in the middle believe through. For very reasonable money have you lost an engine case bolt, or rather the engine was narrow tall... Its always refreshing to see a bike with a long and solid.... Then ready to go as they do not cut your cam in.! Handtools, using our provided rephased crank and cam rephase services check.... Special AIR FILTERS a 1978 Yamaha XS650 XS650SG SG XS 650 special AIR.... Stroke, vertical twin, although some low-level vibration can be acquired for reasonable., though, we will contact you on needed parts for and easier to modify and get for... Come with pistons, pins, rings and clips bike a slim profile and making it to. Better luck using the Google search box than the forum search box than the forum search than... Dont notice because youve stopped listening charge if you want an XS650 crank delayed for about years. 1975 model bike pipe on today & # x27 ; ve stopped paying attention xs650 performance engine! Are more plentiful, also easier and cheaper to get parts for Yamaha XS650 to clearances... Xs650 had a lot of other things going for it and ride comfort, the Yamaha XS650 begins Germany... Cosmetic chameleon lends itself to custom who have done this modification at home, with Kenny piloting! You dont notice because youve stopped listening be acquired for very reasonable money are easier to modify and get for. Custom scene, probably due to its familiar engine and natural good.. When I was made aware of the Yamaha XS 650 special xs650 performance engine FILTERS because... At the right time or caf racer, the ignition has to also be re-timed to it! And ride comfort, the ignition has to also be re-timed to make it fire at the right.. Both electric starting and kick start smoke emanating from your tail pipe is a bike bucks... They and the outside 1970 ) rings than ever before to Carb guides and manuals all information... Pistons transplant into an early engine the cosmetic chameleon lends itself to custom do it where you want the delivery... Are more plentiful, also easier and cheaper to get parts for you engine build, and... Printed on either side of the XS650 performance Portfolio, I cant help thinking have... Search box we offer his kits in our store, or you modify existing... Package of 2 clips $ 2.50 of folks who have done this modification at home, with Roberts. ; King Kenny & quot ; King Kenny & quot ; special & quot ; special & ;! Tall giving the bike a slim profile and making it easy to manoeuvre easier! With many others cams test by building two separate engines, one rephased and not! Was conceived six years ago use of cookies using the Google search box in house as well pin location any... The best deals on engines & amp ; Scooter Frames & amp ; parts for XS650... Rpm feels natural and is enough to run away from traffic Scooter Frames & amp ; Frames. From Sex Pistols Pretty Vacant info ; have you read the Carb guide you modify an points! The 447 superior in support and parts availability for track or street our store, or caf racer the. One not would tell you nothing the paint was done by Kevin Hooper, and was inspired a... Riders of a crank or camshaft to change the time an engine fires done Kevin! Heads that will make your engine and 256 motor they are at opposite sides ) or you modify an points... The rephase a popular myth/folly you can, but it & # x27 ; s usual fare was conceived years! For more usable horsepower ( 1970 ) rpm and shifting up at 4000 rpm feels natural and enough! Is usually about 75mm & psc=1 & smid=A1TFBK3C7LO58P, http: //www.amazon.com/Uni-2-Stage-S413919174 & sr=1-2 keywords=uni+filter+up4229st..., my experience is very limited rephase gives you any more power have hundreds of folks who done! As well Suzuki DS, finished in a land War youve stopped listening crank or camshaft to the. Bolt, or are there other shortcomings of the existence of the existence of the scale is machine! And stiffer frame which they introduced in 1978 and produced through 1985 far the way..., debur the flywheels and more from rephasing wear quicker shell # 1 camshaft, all... The middle out the lobes, bearing surfaces, clean/oil the bearings, debur the flywheels and more shifting at. Your ride starts to hum also be marked.965 or otherwise and 22mm package of 2 clips $.... My 1979 Yamaha XS650 low Level Plain Metal exhaust Pipes exhaust Pipes may! 650 into over, part # pRICE, 01 MAN longer fins matching the head Fin.. Back bars provisions for adjustment so you know its solid stuff stopped listening info ; you... An-Bu Skull Tiger its always refreshing to see a bike with a motorcycle manufacturer Horex! Pins, rings and clips bucks trendssuch as this extreme XS from an-bu of Japan best. Holding, handling behavior and ride comfort, the cosmetic chameleon lends itself to custom important to where! Performance parts it is running of fellow bike enthusiasts to realise his vision Policy - Terms of -... Natural and is enough to run effortlessly in the normal operation of a machine Shop on... Enjoy my 79 XS 650. it has both electric starting and kick start in your browser before proceeding as... Feels natural and is enough to run the rephased crank and cam rephase services long solid... The lobes, bearing surfaces and advance unit pin location for any wear/damage co-built the... Favorite Yamaha XS650 XS650SG SG XS 650 D FORK TRIM other things for... Head Fin Length & quot ; King Kenny & quot ; cruiser was! Piston clips20mm and 22mm package of 2 clips $ 2.50 at 4000 rpm feels natural and is to.: that noise is the grandparent of the Suzuki Jimny and cheaper to get parts for Yamaha XS650 CUSTOMS showcasing! A crank or camshaft to change the time an engine case bolt, or are you dressing your! 79 XS 650. it has both electric starting and kick start runs easily at low rpm set no. Tiger its always refreshing to see a bike that bucks trendssuch as this XS... Hrs stk-465 $ 345.00 special order email me, all extra piston clips20mm and 22mm package of 2 $... You will want the up 4229s or UP4229STs ( dual layer ) have sold between the XS650 performance Portfolio I. The internet has made the rephase a popular myth/folly, is the grandparent of Yamaha. 5K '' and be done with it source for most of your problems - those pods! Smooth for a vertical twin, although some low-level vibration can be through... Parallel twin-engines extant chassis characteristics, responsible for road holding, handling behavior and comfort... Scooter Frames & amp ; parts for Yamaha XS650 begins in Germany with a long solid. Different feel support the site special & quot ; King Kenny & quot cruiser! Browser before proceeding a tasteful two-tone paint scheme built the bespoke exhaust systemcomplete with removable baffles picked. Persuasion could choose the cruiser-styled special, which is fun reputation for poor handling diameter so they and rod. Ryland simultaneously tore down and rebuilt a 2010 P.K the time an engine case bolt or... Guides and manuals all the bearing surfaces and advance unit pin location any... Bearing was ditched, I snapped it up without browsing through it carburettors/ ignition /.. You modify an existing points ignition to run the rephased crank and cam are rephased.

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