Tohatsu 9.8 Fuel Starvation?

Aussiemade

Recruit
Joined
Sep 10, 2007
Messages
3
I have a newer Tohatsu 9.8. The engine starts first time and runs great at low revs when cruising around the harbor. When I go to higher revs to get on a plane the engine will sometimes starve and run very rough. If I pump the bulb the engine starts to run great then slowly goes back to rough after a 100 yds or so. It does not do this everytime say 2 out of 3 trips. I can't see any cracks, etc on the fuel hose. Often when pumping the bulb prior to starting the bulb does not get as firm as I would believe it should. Fuel tank vent works and is clear. Any ideas? Thanks, Aussiemade
 

TOHATSU GURU

Admiral
Joined
Jul 22, 2004
Messages
6,164
Re: Tohatsu 9.8 Fuel Starvation?

Sounds like a fuel system issue. Look for a problem from the tank to the carb.
 

NJS0930

Seaman Apprentice
Joined
Apr 24, 2006
Messages
32
Re: Tohatsu 9.8 Fuel Starvation?

This happened to my Tohatsu 9.8. Changed the fuel filter under the bonnet and cleaned up the boat's fuel systems as well, and installed a fuel/water separator, and all has been well ever since.
 
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