fishermandave13
Recruit
- Joined
- Aug 26, 2014
- Messages
- 1
Is there any way to determine if one of my ignition coils is going bad? 2007 Yamaha 150 4 stroke. 4 cylinders, 2 coils. Engine has a noticeable miss, bogs down evenly when plug wires are pulled while running, 150 psi in every cylinder.