I just found and registered on this site. Just want to note that everyone is very helpfull. I am rebuilding my 77 650. It is completely taken apart at this time. Just to reinforce the old 650 bullet proof motor. I have 109,000 miles on it and this is the first time she has been apart. Every spec. on the engine is still to print as us machine shop guys would say. Not one scratch in the cylinders. When I get done I will post some pictures as she will look better than new. Need help with a paint source. Super candy red.