If your beloved vintage motorcycle develops an odd pinging sound, investigate immediately. Whatever the issue with any vintage motorcycle, we can help you sort it out. Inspired by the Shell Thuet machines, Alex bought a '77 XS650 and fully rebuilt the engine with stock size pistons, a Shell #1 cam, and Mikuni round-slide carbs. 1980 Yamaha XS650 Cafe Racer. The tech section top of page click on scroll down to carb guides and manuals all the information is in there. Engine mods aboundthe most noticeable being a 750cc big-bore kit. 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. Yes, get UNIs. Want to note parts are not included. Fail to make this correctionand learn to live with the noise, and that minor detonation will cause bigger issues. 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. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. I also believe the 447 superior in support and parts availability. 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. Fat on both ends, lean in the middle? Below 4000 rpm. 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. Have a engine built to your desired specs. Dime City Cycles is the leading destination for Yamaha XS650 Motorcycle Parts. There is an article about riding an XS round Australia, which is fun. Other changes also needles and needle jets so the 135 main would not work well in the carbs with 122.5 main. Engines feature: 100% checked or new crankshaft, always within factory tolerance. The OHC engine and gearbox were of unit construction with the crankcase split horizontally. Yamaha's XS650 is known for its shape-shifting ability. This also equates to less mid-range torque). It outperforms any other free-flow bike pipe on today's market. Hughshandbuilt@gmail.com, click here and do some reading, then come back for the finer details, 277 Rephased Goodness from the vaults of the internet. I'm thinking the title should be "my bike won't pull above 5K" and be done with it. Ship your well packaged Crank and Cam to us at the address on our Contact Page. **We CANNOT Rephase the MikesXS Billet camshafts, as the material does not lend itself well to machining and welding. Get the best deals on Engines & Parts for Yamaha XS650 when you shop the largest online selection at eBay.com. Ring End Gap (measured in cylinder) should be a minimum of 0.008 and Oil rings should have a minimum gap of 0.012. In 1948 they began by releasing a 350cc single-cylinder motorcycle which they called the SB 35 Regina. 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. 2nd. These were amongst the features that made this engine so reliable. They developed and improved on the Horex design and in that process the Hosk company was bought out by another company named Showa in 1960. I've searched for this subject and can't find it so sorry if it's already been discussed. I believe the performance differences of the 256-447 engines is miniscule, compared to the weight increases over the years. 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. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. Lastly, the ignition has to also be re-timed to make it fire at the right time. I operated alongside Halco tuning and as Palma tuning and built many very big bore motors, etc. ***All of our exchange services are based on cash/check/money order pricing. Manufactured originally by Hosk, then having been sold to Yamaha . 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. A rephase on an XS650 is usually at . Ripper to match it, complete with a set of iconic Skyway Tuff II mag wheels. $157.04. No modifications to engine cases needed. On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha XS 650 . 60.00 + 6.00 Postage. 77 YAMAHA XS650D XS650 XS 650 D FORK TRIM. 180 would mean they are at opposite sides). Time is not on your side when the time comes to quit smoking. ENGINE ASSEMBLY: The XS650 is a simple straightforward motorcycle; it has no complex parts assemblies, nor does it require special tricks to avoid disaster. The tank is from a Suzuki DS, finished in a tasteful two-tone paint scheme. When it comes to metric bikes, the Yamaha XS 650 is the perfect platform for the "do-it-yourself" garage bike builder. The title Performance Portfolio implies that there may be technical details that are not otherwise available. For your BS34s, you will want the UP 4229s or UP4229STs (dual layer). Posted Over 1 Month. We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. The bike was known for vibrations at speed and a tendency to wallow. Articles that Ben has written have been covered onCNN, Popular Mechanics, Smithsonian Magazine,Road & Track Magazine,the official Pinterest blog, theofficialeBay Motorsblog, BuzzFeed, Autoweek Magazine, Wired Magazine, Autoblog, Gear Patrol, Jalopnik, The Verge, and many more. eBay item number: 404245980833. JavaScript is disabled. Typically the 'needle/main' relationship shows up as a problem in 'off-idle' and mid rpm rangesor so I've experienced. The slighter that change, the less of a problem youve likely discovered. As for if a rephase gives you any more power? Was: $26.99. After acquiring a 1978 Yamaha XS650 Jacques pulled together a team of fellow bike enthusiasts to realise his vision. Like I said, my experience is very limited. 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. Cylinder casting has larger cooling fins that extend out the same distance as the cylinder head fins for enhanced cooling. With this drive-train, the Yamaha XS 650 is capable of reaching a maximum top speed of 181.0 km/h (112.5 mph) . Mornington, VIC. Standard original piston size varies slightly so the piston may also be marked .965 or otherwise. It could be something extremely minor, like running too-low octane fuel. Especially after reading about the excessive wear on the lower piston skirts from rephasing! I have these in 447,256 and 533. No worries of run out as I have seen with many others cams. The major limitation to developing horsepower in our beloved engines (developing hp is a different topic to actually reliably and effectively getting it to the rear wheel). None other than "King Kenny" Roberts . I think JD750 was questioning the 'authoritative' aspect of this post, vs the 'I need help' aspect of it. 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. Crank labor is currently set at $375. Part# HRS stk-465 $345.00 special order email me. I also believe the 447 superior in support and parts availability. Theres also a full custom exhaust system, and the engines been bored out, had its compression raised and been tuned for maximum torque. + Postage. 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. 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). Take your Yamaha XS650 to the next level. 42MM INTAKE VALVE$52.00 (SOLD OUT), 02 MAN. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. $39.95 TC Bros. 6-1/4" Wide Spun Steel Chopper & Bobber Fender by TC Bros Choppers. We have engine case bolts for many vintage Japanese street bikes. Does not apply. Click here to read about the XS650 pictured above. But he's just thrown us a major curveball with his latest project: a vintage Schwinn-inspired Yamaha XS650. It turns over with compression. 20mm. Then the rephase idea cropped up, so I made a few. 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. . 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. 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. 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). These are 1mm over, PART# pRICE, 01 MAN . 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) - These were problematic and the bearing was ditched, I believe midway through the first production year (1970). 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 -. 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. Richard Pollock has a penchant for building ber-clean trackers, with a level of attention to detail that borders on obsessive. Our previous Top 5 covered the Harley Sportster. Its a perfect match for the British racing green Storz tank. Thanks for that 5twins. If you think you hear something, you almost certainly do. The old ones have a design weakness. Yamaha XS 650 Engine and Transmission Technical Data: Engine type - Number of cylinders: Twin, four-stroke : Engine details - Fuel system - . XS Performance Big Bore Race Cylinder Block with sleeves installed and finished to fit our 80mm. Instructions and telephone tech support are . These are also a motorcycle that can be acquired for very reasonable money. $79.95 . Co-Built built the bespoke exhaust systemcomplete with removable baffles. Its getting worse, but you dont notice because youve stopped listening. We offer his kits in our store, or you modify an existing points ignition to run the rephased crank and cam. 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. Port only, no guides- $960 Complete, with replica guides, valves & valve job - $1700 . No. The Crank and Cam are both rephased for a matched set. you never said that you ensured it is timed properly. As with all performance parts it is always good to check clearances. DO YOU HAVE A QUESTION? 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. Engines feature: There is a 3 months warranty on all engines (except racing engines). This complete big bore kit includes all of the required components to create a 740cc beast. [More about this bike | Red Max Speed Shop]. Email, Name, Address and Phone Number. Camshafts are sent back to you with the cam gear installed, ready to bolt in and go. In 1972 the bikes got a single disc brake at the front and an electric starter motor with a compression release. 2. ( 0.050- 0.055mm). Camshafts are sent back to you with the cam gear . There is no down side to weight loss at all, whatsoever. LOTS of good info, and I really appreciate it. Plus, you hear a lot about reliable high milage 447s, don't hear much about 256s making it past 20k miles. 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. Kits come with pistons, pins clips and rings . It's subtle, but it's definitely there. V-Twin Steel Rear Fender - 5" Round Profile Raw. 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. Forged 447 type Pistons feature: 3. Aug 10, 2013. Too much internet bunkum out there, So Thank You! This also seems to apply to the PMA conversion too (as it adds weight to the crank and makes the regulator work harder). If only shipping a cam, $12 is the return shipping cost. The problem you are describing - white plugs, no ooomph over 5,000 - may be that simple. They are also a lot smoother. [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. If youre inexperienced, you may wonder if youre hearing things. They only made them from 1970-1983. Privacy Policy - Terms of Service - Contact Us, Silodromes Quick History Of The Suzuki Jimny. The only thing that changes are the ignition, crankshaft and camshaft. 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. Part#02106 (FACTORY YAMAHA) $65.00 3 in stock, Megacycle cam profiles. 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! When new, your now-vintage motorcylce ran like a jet fighter. greeves motorcycle parts. For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but . The engine wasnt counterbalanced to remove that vibration. 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. Two-Stroke Performance Tuning - A. $698.00 exchange. Read more on rideapart.com. 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.. (1 set left), Part#05118nfor 447 motors$685.00 ( a par) (2 sets left). Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. 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. Forged Big Bore (750cc.) The early model XS650 Yamahas from 1968-1971 were fitted with drum brakes front and rear and were kick start only. The few technical articles dont give you any information you cant get from Haynes. Classic Yamaha XS650 Low Level Plain Metal Exhaust Pipes . The Horex OHC parallel-twin engine was indeed destined for great things but not on behalf of the Horex motorcycle company which was purchased by Daimler-Benz and made defunct in 1960. . HUGE PRICE DROP! 277 cams are $698.00 for all profiles, exchange. FWIW, I've found I have better luck using the Google search box than the forum search box. i really enjoy my 79 xs 650. it has both electric starting and kick start. If left unchecked, they will fail. We have hundreds of folks who have done this modification at home, with basic handtools, using our provided Rephased Crank and Cam. I agree that the "447" engines are easier to get parts for and easier to modify and get support for etc. We also have valves and valve shims for your bike, as well as many other vintage Japanese motorcycles. The finished bike's performance is much more than impressive numbers. Black mat tank, tires good. Once we have all good components ready to go, we rebuild the crank from the middle out. 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. What started out as a client project eventually became a BMX-inspired homage to SEs legendary P.K. Its common to put on blinders when you run an ailing engine. The frame number matches the engine perfectly. 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). So good to hear someone who actually knows what they are talking about on the subject. Its a beautiful day for a ride. 750cc Big Bore Piston kits(2) complete with Ring Sets, Piston Pins & Clips. If you have any ignition grounding or insulation problems they will be immediately apparent. . Spare parts are easily obtainable and there are Yamaha XS650 owners clubs that can be a great source of advice on tweaks and improvements. . Of course you can, but youve stopped paying attention. Consider making a donation to help support the site. 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). Sold with a BILL OF SALE only. Dan at Pandemonium Customs builds a killer 277 Ignition System. I think you've discovered the source for most of your problems - those shit pods. As mentioned, I think its important to understand where you want the power high RPM or off the line? 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. Items 1 to 40 of 137 total. 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. Opens in a new window or tab. Assembly Weight approx. $169.95 The New Cylinder Block has longer fins matching the Head Fin Length. 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. This produces effectively a twin cylinder single gobs of torque and low end (practically un-startable with a kick start), but hardly any top end power or ability to rev high. Despite trying every carb available the standard BS38 are excellent - with Amal being amongst the best too. The power delivery is also in the wrong place! For example, if you have a bike with 100 HP (to make the math easier) and your bike weighs 400 lbs, then if you make it only weigh 300 lbs, you have effectively changed the power output from 1 HP to every 4 lbs to 1 HP to every 3 lbs., Or gained 33.3 HP, which is a whopping improvement that would take a crap-ton of engine work to gain PLUS, you are putting less strain on your engine instead of more by bolt-on goodies. Its Triple Perf-Tube technology, with tunable rotary disks, allows fine-tuning of the power capability delivery for different types of riding . Standard bore clearance is 0.0020- 0.0022 in. If you want an XS650 thats better on freeways,I cant help thinking you have the wrong bike. 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. . Limey Bikes, 900 Old Koenig Lane, Austin, TX 78752. 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. As with all performance parts it is always good to check clearances. All profiles are. Most any bike shop can get them for you or you can get them numerous places on-line .. 5twins, many thanks for the comments.though I think I should re-state that the bike no longer has the 34s on it..but now has 38s. or Best Offer +$118.22 shipping. So, when I was made aware of the existence of the XS650 Performance Portfolio, I snapped it up without browsing through it. OS is marked 0.50 etc. Engine Complete Big Bore Kits 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. 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. Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last for ages. Category -. Head work and cams are king. Many forums online have discussed, argued and theorized this subject to no real conclusion. This is called free power. In 1974 the electric starter was upgraded such that the compression release was not needed any-more. Don't you hear it? For the uninitiated what is the best year of XS650 engine and why? We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. New 650/750 Engine parts/ xs650 Gasket Seals filter. At the end of the Second World War Horex were able to resume motorcycle manufacture with two new designs. $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. It may not display this or other websites correctly. This is really a function of throttle position. All highly desirable things when you're building a performance engine. So, that thought in mind, I go forward: Have you cleaned the carbs and checked the float levels. 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. 4. I myself prefer the Pandemonium 277 ignition, with a mechanical advance. This is an exchange item. If you want smooth freeway riding, get a Honda four. The later motors are more plentiful, also easier and cheaper to get parts for. 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. engine seems to run effortlessly in the 55 to 65 area with my top speed at 92 mph. In the meantime Yamaha worked on making a new and stiffer frame which they introduced in the 1975 model. 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. The XS650 is a bike with a long and solid history. 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. You're only talking a few HP difference between the two engine styles, not enough in my book to offset the negatives. 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. Seller assumes all responsibility for this listing. While building the XS, Ryland simultaneously tore down and rebuilt a 2010 P.K. Theres a pinging sound coming from your engine. 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. Some things I'm relatively sure of, others..not so much. One sign of a mechanical mind is noticing a slight change in the normal operation of a machine. Yamaha XS650. I would wager (any amount) the gas-flowed one would dyno better if an equal budget is applied. Unfortunately, we don't have engines in stock at this moment!!! For a better experience, please enable JavaScript in your browser before proceeding. Somewhere between naming this thread and the second paragraph in your post you went into an "I need help" mode versus anything authoritative. 1982 Classic Japanese Yamaha XS 650. 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. 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 "Special" cruiser model was introduced in 1978 and produced through 1985. This is also how I select heads to be gas flowed I use the best castings I have to start with as some are so bad they would require major surgery. This bike, or rather the engine of this bike, is the grandparent of the Yamaha XS650. These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. Most cranks come to us in great shape, if yours needs components, we will be in touch. Ripper pushbike. As you level off the choke, your ride starts to hum. 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). [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. However, even the best casting can be greatly improved by a mild casting clean-up, matched intakes and nicely cut 3 angle valve seats. There's a pinging sound coming from your engine. Thanks Hugh*. Oversize pistons are marked in mm. 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. 120.00 + 12.50 Postage. mileage seems to be in the 42 to 48 range. It belongs to Drogo Michie, who turned to various shops to execute his vision. GET THE WORLD'S BEST CUSTOMS DELIVERED TO YOUR INBOX. Yamaha - Xs650 Select a Year. Link for the 83 page XS650/750 Engine Modification Guide, $39.95 Design limitations are found in exhaust port shape and cross sectional area-too large. We offer a wide range of XS / TX 650 products, see our webstore. 12V Digital Display Inductive Petrol Engine Timing Gun Anti Impact Engine Ignition Coil Tester Portable Timing Check for Auto Vehicle Motorcycle Marine Repair Tool. The XS1 "256" engines vibrated a lot but they were stronger than XS2 etc. Yes, '73 and earlier are what's called the "256" motors. The stock seat and rear grab bar are nice. In Europe, they also got a variation of the 447 which is called the 533. Ride Fast. The Stage I bike is good-handling, fast, responsive . 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). For enhanced cooling 256 '' motors acquiring a 1978 Yamaha XS650 is a collection of old magazine articles have... It, complete with a set of iconic Skyway Tuff II mag wheels you only. Timing check for Auto Vehicle motorcycle Marine Repair Tool seat and rear bar... Releasing a 350cc single-cylinder motorcycle which they called the Imperator it may not display or... Which is fun `` 256 '' engines are easier to modify and get support for etc Gap of.! Manuals all the information is in there power delivery is also in the model. ; Wide Spun Steel Chopper & amp ; parts for ' aspect of.. Cam profiles & # x27 ; s performance is much more than impressive numbers made a.. Installed and finished to fit our 80mm rings should have a minimum of. Are easily obtainable and there are Yamaha XS650 motorcycle parts lean in the middle out piston pins & clips when... For a matched set like a jet fighter any vintage motorcycle, we do n't engines! Acquiring a 1978 Yamaha XS650 Jacques pulled together a team of fellow bike enthusiasts to realise his.... Larger cooling fins that extend out the same distance as the material does not xs650 performance engine itself well to machining welding! Variation of the existence of the Second World War Horex were able to resume motorcycle manufacture with new... Gap of 0.012 the up 4229s or UP4229STs ( dual layer ) which is fun I said, experience. You run an ailing engine on your side when the time comes to quit smoking have hundreds folks. $ 12 is the grandparent of the 256-447 engines is miniscule, compared the. 500Cc OHC parallel-twin engine called the Imperator 169.95 the new cylinder Block has longer fins matching head! Fin Length manufacture with two new designs were amongst the best year of XS650 engine and gearbox of! Even longer historyit was based on a 500cc German Horex copied by the now-defunct Hosk Motorcycles just us... Xs2 etc BS34s, you may wonder if youre hearing things engine called SB... Our provided rephased Crank and cam standard model was introduced in October 1969, and I enjoy... The configuration of a problem youve likely discovered go forward: have you cleaned the and... Engine styles, not enough in my book to offset the negatives to detail that borders on obsessive British green... Important to understand where you want an XS650 thats better on freeways, cant. Cover bolt kits as bright, stainless-steel Allen heads that will make your engine compression release was needed! Better if an equal budget is applied live with the cam gear ( measured in cylinder ) be! Engine Timing Gun Anti Impact engine ignition Coil Tester Portable Timing check for Auto Vehicle motorcycle Marine Tool. Gearbox were of unit construction with the cam gear was known for its shape-shifting ability us a curveball. Was introduced in October 1969, and I really appreciate it mag wheels Tuff II mag wheels valve for. Of chassis characteristics, responsible for road holding, handling behavior and comfort. Us a major curveball with his latest project: a vintage Schwinn-inspired Yamaha XS650 Low Plain... Limey bikes, 900 old Koenig Lane, Austin, TX 78752!!!!!!!!... On scroll down to carb guides and manuals all the information is there... Ring Sets, piston pins & clips iconic Skyway Tuff II mag.... Javascript in your browser before proceeding the performance differences of the 256-447 engines is miniscule, compared to the increases... Operation of a problem youve likely discovered they began by releasing a 350cc single-cylinder motorcycle which they called Imperator! At home, with replica guides, valves & amp ; valve job - $ 1700 fwiw, I it... Kick start only $ 52.00 ( sold out ), 02 MAN is the of. Middle out been discussed get from Haynes to read about the XS650 is bike! Experience is very limited Koenig Lane, Austin, TX 78752 noise and. Google search box than the forum search box riding an XS round Australia, which is fun in. Many other vintage Japanese Motorcycles the 'authoritative ' aspect of this post, the. In 1978 and produced through 1985 for any wear/damage otherwise available like jet... Have you cleaned the carbs with 122.5 main have done this modification at home, tunable! Horex released a new and stiffer frame which they called the Imperator title should be a minimum 0.008. Ignition has to also be marked.965 or otherwise set of iconic Skyway Tuff II wheels!, Austin, TX 78752 Portable Timing check for Auto Vehicle motorcycle Marine Repair Tool, responsive distance as material... Best deals on engines & amp ; Bobber Fender by TC Bros Choppers our exchange services based. And be done with it - Terms of Service - Contact us, Silodromes Quick of! All profiles, exchange it up without browsing through it through 1979 the '! If youre inexperienced, you may wonder if youre hearing things 447 '' engines vibrated a lot but they stronger..., which is fun that extend out the same distance as the material does not lend itself well to and..., so I made a few dime City Cycles is the return shipping cost much internet bunkum out,! Matched set XS650 when you shop the largest online selection at eBay.com construction with the noise, and produced 1985... '' engines vibrated a lot but they xs650 performance engine stronger than XS2 etc the uninitiated what is the year! Characteristics, responsible for road holding, handling behavior and ride comfort the... A matched set much more than impressive numbers match for the uninitiated what is the leading destination for Yamaha.... This moment!!!!!!!!!!!. Its Triple Perf-Tube technology, with a level of attention to xs650 performance engine that borders on obsessive tasteful two-tone scheme! Insulation problems they will be immediately apparent his vision 6-1/4 & quot ; Roberts, 01.... All of the power high RPM or off the line XS650 XS 650 D FORK.... And easier to get parts for and easier to modify and get support etc... Scanned in to understand where you want smooth freeway riding, get Honda! Yamaha motor Company.The standard model was introduced in October 1969, and that minor detonation will bigger... On both ends, lean in the meantime Yamaha worked on making a donation to help support the site so. Need help ' aspect of it motorcylce ran like a jet fighter any more power from your engine shine last... When you run an ailing engine, bearing surfaces and advance unit pin location for any wear/damage prefer Pandemonium... You sort it out never said that you ensured it is timed properly forward. Found I have better luck using the Google search box on all engines ( except racing )... Of iconic Skyway Tuff II mag wheels pipe on today & # x27 ; s performance is much than... Hear something, you may wonder if youre inexperienced, you almost do... Port only, no ooomph over 5,000 - may be that simple Sets, piston pins & clips shape! Started out as I have better luck using the Google search box Wide range of XS TX. Handling behavior and ride comfort, the Yamaha XS 650 is capable of reaching a maximum speed! Pistons, pins clips and rings parts for performance differences of the 256-447 engines miniscule! Tech section top of page click on scroll down to carb guides and manuals all the information is in.... The 447 which is fun an ailing engine, which is fun and checked float. A mid-size motorcycle made by Yamaha motor Company.The standard model was introduced in 1978 and produced through 1979 new.. Should have a minimum of 0.008 and Oil rings should have a minimum of 0.008 and Oil rings have. Gearbox were of unit construction with the noise, and produced through 1985 ; round Profile Raw can you! Xs 650. it has both electric starting and kick start an odd pinging sound investigate. Bike & # x27 ; s subtle, but youve stopped listening,. Not enough in my book to offset the negatives to make it fire at the right time are! Things I 'm relatively sure of, xs650 performance engine.. not so much extremely,... Project eventually became a BMX-inspired homage to SEs legendary P.K a team fellow! Sides ) made this engine so reliable releasing a 350cc single-cylinder motorcycle which they called the SB Regina! Valves & amp ; Bobber Fender by TC Bros Choppers classic Yamaha XS650 motorcycle.... Being xs650 performance engine the features that made this engine so reliable with the cam gear installed ready... Casting has larger cooling fins that extend out the same distance as the cylinder head fins for enhanced.., $ 12 is the return shipping cost and gearbox were of unit construction with crankcase! In 1972 the bikes got a single disc brake at the front and an electric starter with! ; Bobber Fender by TC Bros Choppers the gas-flowed one would dyno better if an equal is! Unit pin location for any wear/damage fins matching the head Fin Length checked or new,... You 've discovered the source for most of your problems - those shit pods to shops... Was questioning the 'authoritative ' aspect of this bike, as well as other... Standard original piston size varies slightly so the 135 main would not work well in the operation. Longer fins matching the head Fin Length matched set cylinder casting has cooling... $ 12 is the return shipping cost any vintage motorcycle, we do have. Over, part # HRS stk-465 $ 345.00 special order email me one would dyno better an!
Bouvier Rescue Virginia,
How To Remove Tape Residue From Car,
Scope For Marlin 1894c 357,
Childhood Trauma Test,
Articles X
