The megaphones on my RD200 are NASTY. Tons of carbon buildup and nasty E36 M3 on the inside from sitting in a barn, removed from the bike for 20 some years. They look okay on the outside though. What's the best way to clean out all of the carbon buildup in these things?
Soilent Green, I mean Simple Green has worked for me. You could try a pressure washer as well. Or just knock anything loose out and ride it.
Are they chrome plated? If not, the old school way of cleaning them was heating them up with a torch to burn out the carbon.
They are chrome; I fixed my moped exhaust by your method Stuart, throwing it in a campfire for a night! Came out looking like crap but free of all blockage. I don't want to torch the chrome on these though, they're surprisingly nice, but both are pretty nasty inside.
Steps. 1) remove pipes 2) fire up the barby grill 3) place pipes on barby on med heat. 4) remove from heat about 2 minutes after they start to stink 5) hose down the inside with EZ-OFF oven cleaner. 6) place back on heat turned down to lowest setting for 5 more minute. 7) place pipes in 5 gallon pile and use garden hose. 8) leave bucket in sun to evaporite.
... then steel wool it.
SlickDizzy wrote: They are chrome; I fixed my moped exhaust by your method Stuart, throwing it in a campfire for a night! Came out looking like crap but free of all blockage. I don't want to torch the chrome on these though, they're surprisingly nice, but both are pretty nasty inside.
The "red hot treatment" Works on many things
I would plug one end, fill with something like simple green and water or degreaser and let it sit overnight. Then dump out 1/2 the liquid, drop in a bunch of nuts and shake it like crazy to hopefully loosen up as much as possible. If that didn't work well enough, you can take it to a radiator shop and have it hot tanked.
You'll need to log in to post.
