starting headaches

[michigan rider]

ok i gotta 300ex and and it wont start, cylinoid, wireing, startor, battery is all good, i tested them. so i thinking it is in the small electronic box on the left side. when the bike is running i can press the start button and the startor will turn over but it wont if the motor isnt running. so has anyone had this problem before???????? thanks

[cals400ex]

have you tried changing the plug?

[michigan rider]

im guessing your talking spark plug??, thats not it, i got to get the startor turning first

[TC426EX]

Got a white brothers or sparks CDI??? LOL