Hi all. I'm in need of some help. I've read and researched so much already, hoping that there's someone out there that can offer another repair option/advice. We have a 2002 yz125 that will not start. It will fire for a fraction of a second on perhaps 1 out if every 8-10 kicks, but that's about it. I've tried (not necessarily in order) the following: checked compression, currently at 150, airbox, filter, and vent lines are spotless, cleaned the carb, then rebuilt the carb, and cleaned it again later. Drained tank, checked for gas flow. Used fresh gas even though we go through 20 litres a week between three bikes. Checked for Spark, looks good. Aerated the engine thinking it might have been loading up. Tried bump starting it multiple times. Removed the cylinder head to check for carbon buildup, but was fine. Any suggestions?