250 hpdi starting problem

fmmo

Cadet
Joined
Apr 29, 2009
Messages
11
2 weeks in a row, i have starting issue on my port side motor. starting at the dock, fine no problem but after few drift or fishing didn't start right away a few times. checked few things and give a few prime ball than start. once started no problem plane, cruising or wot, only to re-start. compared prime ball port and starboard, i can't feel or tell the difference, but it start with pump prime ball. should i just change prime ball or could it be more extensive attention is needed?
 
Joined
Oct 28, 2010
Messages
923
Re: 250 hpdi starting problem

I would change primer bulb with OEM bulb. Could be fuel restriction. I would have the fuel system on both engines checked for vacuum levels no more than 4"hg. Could be anti syphon valve/pickup tube/swollen fuel line?
 

fmmo

Cadet
Joined
Apr 29, 2009
Messages
11
Re: 250 hpdi starting problem

I would change primer bulb with OEM bulb. Could be fuel restriction. I would have the fuel system on both engines checked for vacuum levels no more than 4"hg. Could be anti syphon valve/pickup tube/swollen fuel line?
thanks again Jeff!! i'll have a certified yamaha tech check thru the fuel system.
 
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