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Old 1 Week Ago
Kimsboat Kimsboat is offline
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Join Date: Mar 2017
Posts: 13
Default 2005 F250 losing prime

Been chasing my tail.....2005 F250 loses prime after sitting. Engine runs perfect idles at 600 maxes out at 6000 and perfect in between. My problem is that I have to prime the bulb if we sit shut down. It will start fine but runs out of fuel shortly after, pump the ball and it will run great until the next cycle. I have replaced the spin on yamaha 10 micron filter before the motor, the filter in the spin on cap at the front of the motor,the filter inside the VST tank, the F filter and the high pressure pump inside the VST tank and the inline check valve. Cleaned the tank while off(it was really clean inside to begin with).
What am I missing from what I can tell the only thing left is the low pressure pump and the primer ball?

Help-Thank
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