1996 Mercury Mariner Magnum 3…on a 19ft bass boat dies while aproching trailer …. Fuel pump? Or air leak?

Rob3xl

Recruit
Joined
Oct 22, 2024
Messages
5
Hello guys im having trouble with my boat approaching trailer at the ramp dies ..I’ve checked the fuel line all the way back to the tank looking for gas leaks… recently swapped the hose coming out the haul to my primer ball to a clear 1(just for the time testing) to be able to see my gas flow…

Notice….that my gas line looses pressure from the primer ball back to the tank as soon as my foot is off the throttle !!!

I wanna say Air leak?!?!?! Or bad fuel pump
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,846
What trouble shooting has been done ?-----I always say that a compression test is step #1 on a 2 stroke.-----Post the actual values here.
 
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