[jojo99]

Hi,

I thought I would ask some of you auto gurus about decarbonization of a 2-stroke scooter muffler. I'm not getting any responses or people that even know what this is on motocylcle and scoot forums. I was hoping you guys might take a stab at it.

I have an 84 honda aero 125 (2-stroke) I've rebuilt for my wife. All is complete and now the last thing I want to do is decarbonize the scooters muffler.
Now normally one would buy a new muffler and call it that, but they do not sell this part anymore, nor would buying a used one be beneficial.

So, how does one go about decarbonizing a 2-stroke muffler like this? It's orig since 84 and I'd love to complete this last thing on the scoot.

I tried a soak overnight in berrymans chem dip, but many people think that stuff won't really work on aged muffler carbonization (they're prob right). Are there any products I can try?...or routes that will work for sure (without breaking this thing)?

thanks

[red_rider52]

Can you take the muffler apart and change the packing inside? or is it all one piece?

[jojo99]

it's all one piece.

It's the type of muffler that is made for the scoot and relates to it's performance, so not sure I want to mess with that, or other options other than this stock one.

It's all one piece, but I'v eseen a diagram that shows how routes in a "paperclip" kind style/one loop - before out to it's small exhaust hole.

...so it's impossible to get a long wire brush to go thru the turns/bends it takes. And they don't make these mufflers anymore so I need a cleaning method that might work.


Wondering...would seafoam work? (lots of it - corking the smal exhaust hoel with a potatoe and filling up the muffler with seafoam - shake around...hope for the best?
That's about 6-7 bottles of seafoam though, maybe more.

[35chev/302gmc]

Go to your local G.M dealer and buy a bottle of Kleens, It is cumbustion chamber cleaner. It works! Best to get the muffler hot before you soak it.

[jojo99]

hey, thanks... i might try it.
Is it pretty affordable?

[Ricky Rocket]

GM sold "Top Engine Cleaner" for years and I think they still do. Maybe it is the same as the Kleens that was already mentioned. On a car, you would run the engine and slowly dump this down the carb or into a vac hose. Trickle it in at first then dumping the last half in to kill the engine and let it soak into the carbon. Let it sit as long as you can and then start and run the snot out of it. I am not sure that this will take it out of the muffler or not. You will probably have to just soak it in the muffler, install, and hope you have enough power to blow the carbon out!

Good luck,
Rick

[baddbob]

Throw the assembly in your woodstove or burn barrel and the heat of the fire will burn up all the carbon and oily soot out of the muffler, blow out the residual powder with compressed air and repaint with high temp. This works fine for non packed mufflers that can't be disassembled.

[Frankoholic78]

Ya GM still sells the TOP ENGINE CLEANER...kind of a spray ..and foams up now...if ya load up the inside of the pipe with it..let it set and rinse it out well..will probably smoke and stink like hell for ahwile....