That OEM carb kit has a cork float that is sealed with an ethanol resistant coating. I still try to avoid using ethanol blended fuel in my outbiards, but those cork floats in the new kits are supposed to be compatible. No need to seal it with anything else over the top of the OEM coating.
-Ben
Lots of opinions on this. Here is mine. Save your money. Use regular grade pump gas and use it up. Don’t leave it sitting in the tank. 87 octane is plenty for your motor.
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