4.3l merc fuel pump diagnosis

dexterlapua

Recruit
Joined
Jul 14, 2012
Messages
3
hello all,
i have a 4.3l lx merc with a 2bbl carb. The boat will start fine, run 10 seconds then stall and i can not get it to start again for hrs. I pull the line off the carb and try to start it and no fuel is comming out. I jumped the pump with 12 volts from the battery and fuel comes out fine. I am getting 10 volts at the plug while cranking and i feel the pump comming on. could the seals possible be bad in the pump and not creating enough vaccum with only 10 volts? any help is gretaly appreciated thanks
 
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