Motorcycle Repair: Big Bear yamaha 350 1987 wont start no fire, yamaha 350, shively

Question
My son was riding the atv and the oil cooler line broke the engine shut off.It didn't damage the engine checked timing,chech compression replaced stator,replaced coil.replaced cdi box ,replaced sparkplug still no fire to the plug ,anyone got any idea what could be the problem? would realy appreciate some advice.thanks William

Answer
Hi William,

If egnine oil was lost and since replaced and there's no spark, I suspect a wire is loose, damaged, or disconnected and causing the problem.

I would need to inspect the ATV to accurately diagnose the problem.

Visit "www.atvfrontier.com" and post your question on the forums.

Respectfully,
Mark Shively