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Joe, Marine Mechanic
Category: Boat
Satisfied Customers: 7251
Experience:  ASE, electronics, Marine mechanical and electronics, pwc, wiring, all around repair tech,
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Evinrude 90 Ficht: At times it will just start running

Customer Question

Evinrude 90 Ficht: At times it will just start running rough, some times it's like a float hung in a carb where there is excessive fuel going through the motor and uses a lot more than usual. I sprayed the control with wd-40 and that seemed to help Temporarily. Could this be caused from the Controls or cables or fuel system?
Submitted: 1 year ago.
Category: Boat
Expert:  Joe replied 1 year ago.


Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.

These do not have a carburetor since they are fuel injected. If the engine is using excess fuel I would check fuel pressure during the problem as well as checking the injectors and an injector leak down test to see if you possibly have a hanging injector that is sticking and releasing excess fuel. I would also check compression during the problem, spark, etc.

Thank you!
- Joe

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