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120 hp johnson running problem

Mike Sousa
asked this on September 07, 2010 13:45

Ihave a 120 hp johnson v4 that runs good when at home on rabbit ears and revs to past 2500 rpms no problem. when I put it in te water the motor wont go over 2500 rpms and it acts doggy(WONT plane out or gain speed). I have checked plugs , wires and fuel filter. ????? Help !!!
 

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Collin Peters
Boat Parts Support Forum - Crowley Marine

It sounds like you need to repair/replace your fuel pump. The diaphagms work well when not under load (at home) but they are failing when under load (at the lake). Thank you

September 07, 2010 13:47
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Mike Sousa

thank you , it sounds like I'll be learning how to fix a fuel pump.

September 09, 2010 10:46
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