I checked it out again. N it won't let me click on any or the years
U no a good place to get bigger Jets for bs34mm carbs im running pods n im I'm bout to put lowbrow mufflers on and i need to go up to 45 on pilot prolly an atleast 1 size on mainDidn't realise that.......may have to be a member to access the Club Racer, although i didn't think that was the case when it came to the club site access for out siders????
can you recommend a shop to do a rephase- this is a tic of mine - i love rephased motors...yes this is changing the crank set up so the pistons dont travel together...the advantage is that you dont lose energy when both pistons are at TDC as 1 piston is always mid stroke when the other is TDC..ie rephase-when one piston is not moving (TDC) the other is at max velocity (mid stroke)...removes the search for energy to overcome inertia when both pistons are stopped together (non-rephased TDC)
- so there is a power saving
- this leads also to less vibration as the motor runs smoother
- better responsiveness
- slightly torquier
- if you do this weld the pins to the flywheels...balancing helps too
- there are 2 ways of doing this
- split the crank in the middle-rotate the right hand side 3 splines and press back together...277 rephase
- split the crank, replace the 2nd flywheel from the right with a slightly modified 3rd flywheel (remove 21mm from the pin boss where the cam sprocket seats), use a 270° pin and press together 90° out of phase...270 rephase
- both of these processes require a suitably modified camshaft and a cam-driven ignition system...a good time to consider installing a permanant magnet alternator and dual lobe points cam
- in my opinion yamaha missed a golden opportunity to produce a truly extraordinary motor by turning this idea down...i have done this and highly recommend this to anyone interested in spending the effort...virtually all modern-day parallel twins are built this way
you're asking a question to a 11 year old post the only ignition available in the us that I know of would be a points modified base platecan you recommend a shop to do a rephase
I would recommend working with Gary Hoos at Hoos racing, handle on here is Hooser http://www.xs650.com/members/hooser.12299/you're asking a question to a 11 year old post the only ignition available in the us that I know of would be a points modified base plate
or order an electronic ignition from Heiden tuning. Hoss Racing or Hughs Hand Built
Uh, make that three camps, Steve. Right out of the crate, some of these mills were as smooth as a motor gets without a counterbalanced crank, and others would shake the fillings out of your teeth--good parts, but often badly assembled and in need of corrective attention. I don't much like the stock rods, either. I've taken down a lot of XS650 motors, and the coating was all or mostly gone from the small end of almost every rod (the Japanese rods Mike's XS used to and may still sell at a decent price are made from harder material and don't need coating, and Wiseco Hot Rods are also decently priced). For the tinkerer, one of the attractions of the XS650 is that there's so very much room for improvement!
Here's the proof.