1997 mariner 4cy 40hp motor...need mechanical advise please

tr21

Senior Member
is your prop the right diameter ? you said you tried 12 and 13 pitch, but what dia. ? and 3 or 4 blade ? another thing to check is you throttle cable adjustment may not be going full to the stop !
 

little rascal

Senior Member
didnt want to crank back till i startd pumping bubble back up.....

You have a bad or failing fuel pump. If you have to pump a fuel line bulb to keep it running, it is usually the pump failing. You said u had tried another tank and fuel lines.
Sounds like a bad fuel pump, even if it had a kit.

just saw this too.
,doesnt seem like the filter is holding the fuel it needs too,,,
Fuel filter is directional, make sure it ain't on backwards.
 
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