hmm..so I just answered by myself lol
I have removed the cam sprocket, removed the head without removing rocker arms and cam. It looks like OK. Also there are no knocking or clicking, etc when run the motor, hope it doesn't appear in the future.
And I keep the magneto in TDC position, when I disassembled the head and the cylinder. Just for safety
So on my part numbers 49118 the cam. The pic show the unused 3rd hole pointing forward. I installed mined facing towards the back. My cam sprocket is correct. But does that mean my cam is 180 degrees out? It's running strong but still just in the break in phase. I dont wanna ruin anything when we go riding??? But you know what, in the pic above the mounting Allen bolts are one up and one in line with tdc which means he probably has an empty female hole below the top one in line....mine uses the 2 vertical holes....I must be good
Actually the 3rd hole that there is no thread on it, it actually facing forward about at 8 o'clock. It uses for Shaft-Comp numbers 13234. So all holes should be in used.
It sounds like your bike didn't have a original kawasaki decomp cam, the cam and the decomp thing should be like my picture above. So i don't know if your cam 180 degrees out will work fine or not, sorry
