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Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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2002-2004 Yamaha 70 hp oil injected outboard. Loss of power

Customer Question

2002-2004 Yamaha 70 hp oil injected outboard.
Loss of power after hitting a few wakes. Barely able to keep on plane. This happened once last yr so I replaced the whole fuel line. 3rd trip out this yr and same thing. I hit some wakes and lost power again, just barely able to keep boat on plain. When I tried to give it full throttle it would stall out.
I keep hearing loose or bad power connections or bad power pak. Another says bad high pressure fuel pump.
If it's the fuel pump. Where would it be located. In the built in tank or on the outboard itself ? ....Doug
Submitted: 4 months ago.
Category: Boat
Expert:  Jason replied 4 months ago.

Hi Doug, my name is Jason.

Can I get the full model number on the engine please.

Customer: replied 4 months ago.
I'm at work and do not have that info available
Expert:  Jason replied 4 months ago.

No problem, there are no time limits here. Did you want to get back with me once you have the model number, or did you want to call it quits?

Customer: replied 4 months ago.
Call it quits

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