i just bought my 750 yesterday. long story short it was bought at a storage unit auction. the owner of the unit was said to have owned a race shop. the unit was filled with about 25000 in snap on equipment for motorcycles and toolboxes. and this bike. the motor on the bike was suppose to be built. it was stored in the unit with the carbs off and wrapped up and the intake boots taped off. when i got home i started looking further and noticed the cdi box was gone and the wiring harness was hacked up(missing connectors and some of the light wiring was cut). i unwrap the carbs to find out they are Keihin 39mm flatside carbs. so that tells me the motor maybe built. but i cannot even see if it turns over with the harness relays and wires cut. what specific year harness will work for my bike?
I have no experience with flatslides directly, but I hear they are best for racing, and need to be adjusted/tuned almost every time you run the bike. Might be better off with CV carbs
There's a picture of how to roll the crank in this thread. First picture. Post #3. The larger hole has a 14mm bolt head. You turn that. Clockwise only. The smaller hole is a sight hole for timing reasons.