Page 1 of 1

GY6 150cc Yerfdog cranks but will not start.

PostPosted:Mon Sep 05, 2016 11:33 pm
by Pilot31610
Spring of 2016 I replaced piston, cylinder, head, CDI, coil, plug and kill switch. Bypassed brake kill switch. Ran fine for probably 20 hours plus or minus. Parked it and shut it off for a couple hours when I tried to start it again it just cranks over. If I hold the accelerator pedal down at just the precise position it sounds as if it is almost running but as soon as the starter is disengaged it quits.

I have:
- replaced the CDI
- replaced the Regulator
- replaced the coil
- replaced the spark plug
- verified spark holding plug against case
- sprayed fuel mist in carb inlet
- verified fuel flow to carb

Any help would be greatly appreciated. At this point I'm completely stumped.