What kind of decarb should i use on my motor?

Patty Pooh

Petty Officer 3rd Class
Joined
Apr 15, 2003
Messages
90
I have a 1989 Force 125 and im wondering if i should use the spray kind or the kindyou add to the gas tank? How often should i use it and how?<br />Thanks!
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,757
Re: What kind of decarb should i use on my motor?

Decarbing is a 2 part process. One preventative, done by using a fuel additive to prevent carbon build up. SeaFoam is such a fuel additive and can be found at most auto parts stores. It works as a fuel system cleaner and should be used as a preventative maintenance procedure.<br /><br />If your intent is REMOVE the existing carbon buildup from the cylinders, heads, and rings, then a spray decarb solvent product is needed. Buy at least 2 cans of decarb. Some people use one can per cylinder.<br /><br />Run engine at fast idle, with engine running<br />spray liberal amount into each carb,<br />spray some more, spray a larger amount into carbs until engine chokes out and stops,<br />remove spark plugs and spray decarb liberally into each cylinder, install the spark plugs, let it soak for 1 to 12 hours. <br /><br />Start the engine and run at medium throttle, or if at the lake, run it at full throttle. It won't hurt to spray some more through the carbs. Run it for atleast 10 minutes to flush the crud out of your engine. Now remove and clean or replace the spark plugs. <br /><br />I believe the manual recommends every 60 hours, at least once a season, more often if motor is run at low speed for extended periods. <br />I do mine about every 10 outings to keep it clean and keep the rings freed up, increases compression and hopefully prevents a broken ring and rebuild. <br /><br />We got to take extra care of our Forces.
 
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