Gas tank clean out

[Rich]

Thank you! I can only hope that it helps someone.

[winlessinnh]

Well I hope the verdict is in. What I didn't explain earlier is last year I was having trouble with my 90hp Merc. Wouldn't start, stalling out, limited power. Took it to a dealer and he rebuilt the carbs. A lot of sludge from 13 years of ethanol. Drained and cleaned the tank. I put the boat in the water this year and filled up the tank with gas and still had a problem with poor running. Stalling out, no power, etc. I figured it was water this time. I put additives in the fuel, kept draining the water separator, and finally a couple weeks ago when I was still having problems with it I came to the conclusion it wasn't water. Wouldn't run in gear but I could rev when out of gear.

Took it back to the dealer, he had the mechanic clean the 4 carbs 4 times and still couldn't get it to run. Finally they took and had it cleaned with an ultrasonic cleaner and it's running fine. (or so they say. Still to be tested.) Oh well, a wasted fishing season.

[Rich]

Carbs can be funny and there are a lot of small passages in them, so I can see how an ultrasonic cleaning could do a better job.

Let us know how it goes when you get to test it. Hopefully your problem is solved.

I run Starton in all my engines now (except my car).