This is the street version dirt bike. So it is like a really simple car. It has a battery, starter motor, keyed ignition switch, ICM (ignition control module), coil and that is about it.
It cranks fine (for at least 10 minutes without draining the battery).
I have try tracing wires, disconnecting them, and measuring Ohm resistences, but get no spark after it sits around a week.
After dissassembling it, it periodically starts, I can go for a ride, turn it off and it starts right back up every time and usually a day later.
Would this be a coil with too much intermittent resistenance to block the charge or a battery with not enough cold cranking amperage to over come initial starting resistance? It does crank over quite well.
It seems to start (when it does start) when it is warmer out (65 degrees) and not start at lower temps (say 40 degrees).
But mostly not start after having been left for a week unstarted.
I went for a 2 hour ride for about 100 miles. Next day I wanted to see if it started and it started right up (this all happened last weekend).
I tried starting it this weekend (and have put the battery charger on it too, which really charged the battery), and no luck.
Any suggestions would be appreciated.