I have just brought a 1980 ke 175,it wont start it keep kicking back and just about bracks your foot it seems like a timing problem it has electronice ignition good compression the spark at the plug doze not look that grate I have put a coil and another electronice ignition on it from anoer ke 175 that I have it doze fir,but wont start could it be the stator generator behind the fly wheel,Can you help thank you