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Ryoushi

Yamaha 9.9

5 posts in this topic

Hey, i have a 2005 and it won't idle. I'm thinking it's from sitting too long. I have fresh gas in it and ran some sea foam through it but it's still idling really rough. Any tips on rebuilding that carb?

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Not off hand... take it off the motor and dig in!

marine_man

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Try a heavy dose of Seafoam. I keep a portable 3gal tank with 2gal gas/1 can of seafoam. When my 9.9Johnson acts up (idle while trolling) I hook up the small tank, run at WOT for 5-10 minutes and then troll with it. Cleans it right up for another month.

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I have had the same problem with my 9.9 yammi. Started running yamaha ring free in about every other tank. Never had a problem since.

Stuff is pretty spend, but you don't need to use very much.

think it is like 1oz. per 10 gallons when used regularily.

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Ring Free is some good stuff... no doubt about it.

marine_man

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