Decarbon motor???????
- Thread starter dtw2
- Start date
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one of the common things to kill 2-cycle engines is carbon build -up behind the rings.....it pushes the rings out and reduces flexibility in the ring and eventually the ring snags in the edge of the port....and when it breaks it winds up on the top of the piston and usually beats the head and piston top to death.
if you are not using sythetic and the motor has a number of hours on it there`s a pretty good chance it might need decarboning .
some dealers will do it for you and some of the engines have portals built into the sytem to inject the chemical.
I did my old johnson 140 quite a few years back. crank it up, rev it up a little and spray the stuff in the throat of the carbs until it`s about to choke out.. let it recover to an idle and do it again till the cans empty.....makes all kind of really ugly smoke and belchs soundly. It seemed to run better afterwards but I never got back into the engine to see if it actually cleaned it out.
They make some stuff called Carbon Guard and I feed a little bit in with every tank fill up. It`s about 10$ a bottle and it will treat a a bunch of gallons.....that along with 23$ a gallon Amsoil and 3$ a gallon gas...its just about 10$ a gallon to run your engine now .
I asked my mechanic about doing the decarbon thing on my 225 just a few months back and he said since I`m running sythetic that I shouldn`t have a carbon problem.
best thing would to talk to a trusted mechanic.
Good Luck !
if you are not using sythetic and the motor has a number of hours on it there`s a pretty good chance it might need decarboning .
some dealers will do it for you and some of the engines have portals built into the sytem to inject the chemical.
I did my old johnson 140 quite a few years back. crank it up, rev it up a little and spray the stuff in the throat of the carbs until it`s about to choke out.. let it recover to an idle and do it again till the cans empty.....makes all kind of really ugly smoke and belchs soundly. It seemed to run better afterwards but I never got back into the engine to see if it actually cleaned it out.
They make some stuff called Carbon Guard and I feed a little bit in with every tank fill up. It`s about 10$ a bottle and it will treat a a bunch of gallons.....that along with 23$ a gallon Amsoil and 3$ a gallon gas...its just about 10$ a gallon to run your engine now .
I asked my mechanic about doing the decarbon thing on my 225 just a few months back and he said since I`m running sythetic that I shouldn`t have a carbon problem.
best thing would to talk to a trusted mechanic.
Good Luck !
2jigs
Well-known member
Hey Paul Nichols do I need to decarbon?
fisherpal2k
Well-known member
I used to do my Mariner that way. It was a carb motor and like Snuffy said. Take the cover off and get the engine warm, spray till it uses the whole can in all the carbs and then I shut it down for about 30 minutes to let it work. Then start it back up and the crud comes out the exhaust and you will be amazed at it. </p>
Started using a little better oils now and it don't do as bad on the Merc I am running now. If you have EFI motor there is usually a port in the fuel intake line to add the stuff in. </p>
Started using a little better oils now and it don't do as bad on the Merc I am running now. If you have EFI motor there is usually a port in the fuel intake line to add the stuff in. </p>