Did a test ride on my CB 450 K1(converted to CL now) yesterday, and found out that there is a flat spot around 1500-3000rpm. The engine hesitates, and you don`t get the desireable torque when riding away.
I`ve been messing around a lot trying to solve this problem, but nothing helps. The ignition is perfect, the mains are #130, pilot #38 and the float is as stated. Have read in the Clymer Manual that flat spots are due to fuel starvation at a specific rpm. Does it help to change to larger mains? Blocked air jets?
Anyone who has a clue on this subject..............?????