Posts: 202
Location: Angola, IN | If you end up owning any 2-stroke outboard, one important thing to do is de-carbonize the pistons. It's often neglected and not done. Carbon deposits on pistons is the #1 cause of failure/breakage/damage in an outboard engine.
It's easy to do. You can just do it in the spring when you install new plugs.
One easy way to do this is to mix up a gallon of fuel with a whole full pint of Seafoam and run 1/3 of the gallon through the motor and get it hot in your driveway and at idle. Turn off for 15 minutes. Do this cycle three times until gas is gone. (Of course, have ear muffs on your lower unit....just sayin')
PEA (polyethylene amine) is about the only known good carbon/deposit cleaner that actually works in gas at reasonable concentrations. One of the most readily available and high concentration of PEA is Gumout Regane High Mileage gas treatment. Available at Walmart, auto part stores, Meijer, etc for around $5-$6 a bottle. Mix a bottle to every 10-15 gallons of gas in your tank every 3 or so tank of fuel. So, if you fill up empty, and you hold 40 gallons, dump in 3 bottles of this Gumout Regane. This will prevent any new deposits from forming.
I know what I'm talking about. I'm a chemist. I spend a lot of time researching and reading about oils, engines, etc. |
