Just bought from a friend for a real good price. Boat has been sitting up for a couple years. We took it out yesterday with fresh gas and ran it. Started off rough, but eventually improved. Still kinda sluggish at times. What’s the best additive to use to clean the rest of the gunk out without having to take it apart?

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Posted by TheDrunkenTigah

Baton Rouge

Member since Aug 2011

17317 posts

Posted on 5/23/21 at 10:52 pm to AMac

quote:
take it apart

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Posted by armsdealer

Member since Feb 2016

11500 posts

Posted on 5/23/21 at 10:52 pm to AMac

Seafoam was designed to clean carbon out of 2 stroke engines, I'd start there. Don't be afraid to run it hard after it warms up, getting an engine good and hot also helps burn off carbon buildup.

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Posted by Barneyrb

NELA

Member since May 2016

5096 posts

Posted on 5/24/21 at 5:15 am to armsdealer

quote:
Don't be afraid to run it hard

Not until it's getting plenty of fuel, the number one killer of 2 strokes is running lean.

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Posted by cdaniel76

Covington, LA

Member since Feb 2008

19699 posts

Posted on 5/24/21 at 5:52 am to AMac

quote:
take it apart

This!

Carbs are so easy to work on and clean. Get a few cans of carb cleaner and spray through every orifice. Take the jets out and clean those. Take the float and plunger out and clean the plunger tip and the plunger orifice.

That's usually all it takes and it'll be running like a bat out of hell. Really is simple.

Google the parts diagram for the year and model engine and that'll help you see what goes where.

Hell, YouTube has 1000's of videos on carb cleaning and you can probably find one for your exact motor with how popular the 25hp Yammy is.

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Posted by AMac

Member since Aug 2018

1548 posts

Posted on 5/24/21 at 10:01 am to cdaniel76

Thanks guys

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Posted by BarryMcCokner

Nola Area

Member since May 2017