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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3308
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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I have a 2001 Yamaha 200 hpdi and it bogs down when I give

Customer Question

I have a 2001 Yamaha 200 hpdi and it bogs down when I give it gas won't plane off I hooked it up to yds and it not firing on 2and 3 cylinders in neutral or in gear do you know what would cause this
Submitted: 18 days ago.
Category: Boat
Expert:  Charles replied 18 days ago.

Hello, my name is***** will assist you.

Expert:  Charles replied 18 days ago.

Check the shift switch on the engine. If it is not telling the ECU that the engine is going into gear, it will not activate the other two cylinders since this engine only idles on 4 cylinders.

Customer: replied 18 days ago.
Is there a way I can test the switch
Expert:  Charles replied 18 days ago.

Yes, disconnect it and use a multimeter to see the resistance on it, then shift the engine and see if the resistance changes.

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