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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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89 red stripe merc 3 cyl ran great opened up throttle speed

Customer Question

89 red stripe merc 3 cyl ran great opened up throttle speed up but would not idle down high rev cut engine off restarted revs wide open ????
JA: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so the Marine Mechanic can help you best.
Customer: Will not idle down runs at high rpm at re start
JA: Is there anything else important you think the Marine Mechanic should know?
Customer: Fuel pump rebuild three years ago did not run much last year do not run ethanol gas only premium
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Submitted: 1 year ago.
Category: Boat
Expert:  Jason replied 1 year ago.

Good morning, my name is ***** ***** am I speaking with?

All Mercurys are cataloged by serial number, can I start by getting that number so I can run it and see exactly what you have.

Customer: replied 1 year ago.
Serial # ***** throttle control locked up running wide open..cut engine off control shift back and everything seem to shift right on linkage at carbs
Customer: replied 1 year ago.
With control in neutral engine cranks and runs wide open..shut it down fast
Expert:  Jason replied 1 year ago.

Got it. If you remove the throttle cable from the engine, is the throttle linkage, and the shutters on the carbs fully closed?

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