There are some weird protrusions on some of the heads and cylinders for various stuff to bolt ,some have 28mm carbs and some have 38mm carbs but the port timing,electrical.bore size ,crankshafts,etc on all 650 motors are the same.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.