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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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I have a 9.9 horse 4stoke, starts great but when I go to full

Customer Question

I have a 9.9 horse 4stoke, starts great but when I go to full throttle it Boggs down, and makes a hissing sound out of exzost?
Submitted: 2 years ago.
Category: Boat
Expert:  Jason replied 2 years ago.
Hello my name is ***** ***** am I speaking with?The engine needs some troubleshooting with tools in order to figure out what is going on with it, and where the problem lays. What were you looking to do here? What kinds of questions do you have for me?
Expert:  Jason replied 2 years ago.
Hello, it looks like you read my reply and logged off. Did you still need help with this?

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