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Ask Dominick Your Own Question
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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2003 200 efi not optimax blows 20 amp fuse red with white

Customer Question

2003 200 efi not optimax blows 20 amp fuse red with white tracer from main power relay. tested all coils replaced 1 coil changed main power relay. checked all grounds, new battery, checked all pins and with white tracer is for coil power.any thoughts
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
Would you please post the serial number of the engine?
Customer: replied 2 years ago.
ot665082 200 merc
Expert:  Charles replied 2 years ago.
Disconnect the coils at the main connector at the top of the plate. Turn the key on and see if the fuse blows still. if it does not, I will need to know if you have 4 or 5 wires in the small plugs on the coils.

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