Sea Foam for outboard that runs rough and stalls at idle [SOLVED]

I have an outboard that runs rough and sometimes stalls when at idle. What’s the recommended method for cleaning using Sea Foam?

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Jim D.
Jim D.
1 year ago

Good question, Bob.

What I’d do: Add a full can of Sea Foam Marine PRO to a low tank of fuel (less than 1/8 tank). Run it for 20 minutes (and don’t be afraid to run it hard) to let the Marine PRO mixture work through the system. That is the best way to clean out your engine and help overcome any problems from fuel gum/varnish (which can cause rough idle, loss of top end speed, hard starts, stalls, etc.).

After you finish the cleaning treatment, add Marine PRO to every tank to keep things clean and lubricated.

Hope that helps!