Before I start thanks for any help,
So I started rebuilding my atv a few years ago and have finally gotten to the point of trying to start it, but does not start and have been stuck for months. I have compression, spark, and fuel. I have checked and triple checked my timing and valve clearance. since this is my first time rebuilding an atv I wasn’t sure if I was checking compression, spark, and fuel right so I took it to a mechanic and ended up paying 100 to be told what I already knew. The mechanic said he thought it was the timing but wanted to charge 300 to do it and I didn’t have the money. So I have redone the timing twice since then and still no luck. I followed the manual slowly as well as online videos. My questions are, what else can it be? Should I replace the timing chain and woodruff key? While doing the rebuild i changed replaced piston, put stage 2 cam, replaced clutch