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post #16 of Old 05-09-2013
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Re: Another (stupid?) outboard motor question

Originally Posted by Minnewaska View Post
Dirty spark plugs change outboard behavior. I change them out every couple of years and clean them annually.

As a cheat, I will also occasionally spray ValvTects Marine Motor de-Carb through the intake. Smokes like a forest fire, while you're doing it, and its not just a dainty spray and you're done. You spray the whole can. I think it works, makes me feel like I did something anyway.
I have been using this:

B-12 ChemtoolŪ Carburetor, Fuel System and Injector Cleaner | Berryman Products

for 30 years in anything that burns gasoline with no fuel related problems.

Paul T
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