flywheel90
Recruit
- Joined
- Jul 23, 2007
- Messages
- 2
i have a johnson 90 h.p. that on some days upon getting up on plane motor will vibrate horribly. the motor acts like it is starved of fuel and falls on its face. so i immediatly throttle back to neutral. i dissingage prop and does the same thing. it idles fine, starts good. if i turn motor off and let it sit for a couple of minutes it does ok sometimes. once on plane and i dont ask it for more fuel it does good. do i have a bad primer ball valve, bad fuel pump. can you help.