I just picked up this motor and it hasn't been run in about 5 years. It only had spark on one cylinder when I got it. I replaced one coil, plug wires, kill switch, fuel pump cap. Also cleaned the carb and replaced the float, needle, and seat. After all this I got the motor started. It ran for a few minutes, but very rough and I had to keep on the throttle. Can anyone tell me how many turns out the Rich/Lean screw should be turned before I attach it to the linkage? Additionally, what is the best way to adjust the timing? The carb doesn't have much for idle adjustment like I'm used to on newer motors. If anyone knows where I can download a free repair manual as well that would be greatly appreciated. Thanks for the Help.