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Old 09-20-2016, 05:35 PM
97 SL320 97 SL320 is offline
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Quote:
Originally Posted by Clemson88 View Post
I've dealt with that varnish buildup in outboard and small engine carbs for years. I considered pouring a gallon of carb cleaner in the tank but I read such solvents would destroy the tank lining.

Carb cleaner as in the "dip the parts in the can" type or " add this to gasoline"?

The dip type ( Methylene Chloride, the active ingredient in paint remover, sometimes called "carb acid" ) is pretty corrosive. I would not use it in a fuel tank as removing all of it would be difficult as some would hide in the tank seams.

I've had good successes with denatured alcohol ( Ethanol ) . It also removes rubber that has deteriorated through exposure to ethanol based fuels.
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