Stah1one
CB750 Member
Bought a 78 cb750k last year and didn't get to ride it (beginning winter). Went to fire it up this year and found it only running on 1st and 2nd cylinder. After much tinkering found it was bad coils and replaced them. Now it runs on all cylinders, but idles poorly, sputters, and dies as soon as you even slightly turn the throttle. I've completely cleaned the carbs, my jets are all correct (at least according to my Clymer manual), I set the float heights, and made sure I'm using new gas that hasn't been sitting. Compression is good (115-120) in all cylinders. I'm at a bit of a loss as to what to do now. Check timing? Check points? Check valves? Any help would be greatly appreciated! I'm dying to go for a ride!!