yamaha 8 hp

netting one

Petty Officer 2nd Class
Joined
Mar 23, 2010
Messages
112
I went to start first time this year and wont idle or take fuel without bogging. I always use stabil and run fogging oil threw engine add two new plugs and fuel filter and its ready now for the fourth year, well i thought. Any ideals would help. thanks dan
 

philsboat

Cadet
Joined
May 5, 2010
Messages
17
Re: yamaha 8 hp

I went to start first time this year and wont idle or take fuel without bogging. I always use stabil and run fogging oil threw engine add two new plugs and fuel filter and its ready now for the fourth year, well i thought. Any ideals would help. thanks dan

Check the fuel pump diaphragm.I had a similar problem with mine.Found the diaphragm had pinholes in it which allowed the fuel to go directly into the base without going through the carb.
To prove it,back off the carb mounting nuts pull the carb away from the engine then squeeze the primer bulb.If you see frothy fuel coming out of the passage that pulses the pump,change the diaphragm.

Phil
ps:The dealer told me to scrap the engine and get a new one when he couldn't find the problem
 
Top