Hi guys great site with vast amount of knowledge. Gotta ask an opinion from anyone as to what might be going on with this bike o mine. Rebuilt the engine made sure everything to spec reassembled and put back in bike....everything good with the exception that I cannot get it started. cleaned all grounds....rebuilt starter.....new oil and filter....when trying to start it it seems the engine turns then hesitates, turns and hesitates at regular intervals. Checked for spark on all 4 plugs and seems good. New battery as well. However when I pull one of the plugs and it doesn't matter which one, ( I tried em all) it seems the engine turns over more free and with no hesitation at all. Pulled plugs and dipped in gas put back in and fire immediately out of manifolds. I don't have the pipes on right now but would that make a difference? Any help would be greatly appreciated.

Starter clutch problem? Should rotate freely counterclockwise, no movement clockwise. Possible neutral or starter lock out switch problem.

Hey thanks for the response!! I have used the safety bypass mod I found in the verses so would that eliminate those possible issues?

Are you sure you have the valve timing right?

Had a similar issue and found the cam chain was off by a tooth on the gear.

check to make sure pickup coils are in right position, not just gap, but if you swap em, it wont run well, if at all

You stated you have good spark ( not electrical problem ). I assume you are getting fuel. That lead me to the starter clutch. Is the one way clutch installed properly? Hold the balancer shaft with a wrench and make sure the starter clutch only rotates counterclockwise. I am suggesting this solution because you tore down the engine.

Clean the ignition switch. Just do it.

I did make sure the cam chains were timed correctly and the pickup coils in the right order....wondering if spark plugs are crapping out....also not sure why the motor would turn more freely with 1 spark plug removed...Any thoughts or would this be normal?

Ignition switch will be cleaned next for sure.

Less compression with plug removed