Evinrude 9.9 stalls after a while...

shipcamein

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Joined
May 7, 2012
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13
1999 evinrude 9.9 four stroke

This is the same engine I posted about having fuel in the oil - i have since rebuilt the fuel pump. The diaphragm appeared damaged, so I think that problem is solved. I won't know until I run several hours - but I can't!

Engine starts and runs normally for a while - say, 30 minutes. This leads me to believe I put the pump back in correctly. After a while though, it starts to starve for fuel. I can squeeze the ball, and it will perk right up. Eventually, it will only run a few minutes between squeezes.

a) could this STILL be a problem with the fuel pump? I am not confident I built it right - no diagram!
b) if not...it was running fine before the fuel pump, could i have damaged/unhooked something during the rebuild?

Thanks!
 
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