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XS 650 Yamaha racing crankshaft

XS 650 Yamaha racing crankshaft by Chris Applebee Engineering we specialise in dynamically balancing & OVERHAULING all motor bike crankshafts If you have any questions please do not hesitate to ask. on 01268 776642 or email chris@applebee.co.uk Thanks for looking


 


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The Process of Balancing an Engine Kit is a highly meticulous job. This video was created for Coast High Performance to give its customers, followers and racers an idea of what it really takes to balance an engine kit. The process can easily take a few hours and should only be done by a properly trained professional. There is truly an art to balancing and whether its a 28oz, 50oz, internal, external or neutral balance, coast high performance have the professionals needed to pull off such a feat!





Crankshaft Truing Procedure Honda ST90 CR KX YZ RM CRF YZF Crank
This video shows how to check the trueness of a single cylinder crankshaft and what to do if it is outside the manufacture spec. The process is the same for 2-stroke and 4-stroke crankshafts. This demonstration was filmed in the lab at Western Iowa Tech Community College Motorcycle and Powersports Technology Program. If you would like more info on the program feel free to contact the instructor @ 712-274-8733 ext 1204 or email shane.conley@witcc.edu or dirk.bak@witcc.edu





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ktm 85 crankshaft balancing service motor x racing by Chris Applebee
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270 Degree Rephased XS65 - Hugh's HandBuilt
Thats right folks, we finally built a 270 Degree Rephased XS650 Engine Ok, here comes the flood of emails, questions, etc... So I'll just quote Wikipedia for the reason to rephase an OEM Firing Pattern of 360 (which is the stock XS650 engine configuration) to a 277 or 270 "The classic British parallel twins (BSA, Triumph, Norton, AJS & Matchless) had a 360° crankshaft that, compared to a single, gave twice as many ignition pulses, which were evenly spaced. The Yamaha TRX850 had a 270° crank that allowed a more regular firing pattern than a 180° crank, and less regular than a 360° crank. This configuration has the best possible secondary engine balance for a parallel twin; its Exhaust sound and power delivery is identical to a 90° V-twin." - Think Ducati or Suzuki SV Series engines While we do a TON of 277 engines (it's the most cost effective rephase for the XS650) this one is 270 degrees. I've always wanted to build one. It requires a specially made center pin for the crank ($$$$$) and 2 donor cranks to build a single 270 crank. Then the camshaft and ignition must also match the new firing order of course. What you see here, is a 750cc 270 Degree XS650 Engine, using JE Pistons, our HHB D-Shaped Ported Head, 5th Gear OD, HHB 6 into 7 Clutch mod, 5th Gear OD, HHB Oil Cooler and all the other little tricks we do at Hugh's HandBuilt I hope you enjoy it. Go find our Blog, and check out the other cool things you can do with these bikes. They are a blast to own, mod and work on. Hugh





Custom Motorcycle Gas tank fabrication, Chappell Customs, board track 82 XS650
check out our new store! http://www.tuffside.com check out my other bikes and build videos on my Channel here http://www.youtube.com/user/mikiflicky www.ChappellCustoms.com Making the xs650 Boardtracker tank from scratch! Tons of hours involved, but here's the quick version... fabrication of fuel tank required template creation, mockup, sheet metal cutting with both plasma cutter and beverly shear, metal brake to bend up flanges, and shrinking and stretching to match the curve of our frame. Finally welded together with the tig welder using silicon bronze rod, then sanded smooth and pressure tested. Music by my nephew Austin. Purchase your favorites here http://inzenmusic.bandcamp.com More here: http://www.youtube.com/user/twitchyAMC





Which car is faster? Which Car is Faster?




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