Re: Is this a proper way to decarb an outboard?
Waterrazor<br />You did not say what year your motor was, I hope it is not oo old if you are just now decarbing for first time.<br />The killer of 2 stroke outbaords is carbon buildup.<br />I use ring free every time I fuel up. Use only Yamalube oil<br />Every 50-75 hours gte your motor warmed up, spray a good decarbing aresol in each cylinder, I use engine tuner. let it soak a minimum of 4 hours, I try to go at least 6-8.<br />Then take your boat for a ride for an hour or so, run at 35-45 hundred rpm so you will loosen and blow out any carbon you have loosened up.<br />When you return, take your plugs out and give them a good cleaning, I replace mine every 150 hours.<br />Learn where you 02 sensor is, take it apart and clean it, it is located next to your starter motor.<br />DO NOT spray any solvents on the sensor, I use a safety pin to get inot the small openings and get the carbon out, go get a 3/4 round cleaning brush like the ones you would use to clean the inside of a copper fitting before soldering it to clean out the bore of the brass housing that the sensor goes in.<br />There is a small stainless steel cylinder in there also it looks like a samll dumbell, use a drill bit by hand to clean the center hole in the dumbell, then I use a fine 600-800 grit crocus cloth to clean the outside.<br />If you keep your 02 sensor clean, de carb every 50-75 hrs, use the right quality oil, use the ring free........you will definitely increase the life expectancy of your powerhead.
