How can I reduce the exhaust noise?

[Stink Bike]

Does anyone have anu suggestions on how I can reduced the noise level of the exhaust on my Chinese 66cc motor?

Thanks
Mick

[davidsis]

Try putting steel wool inside the muffler a little at a time untill noise level that you like is achieved.

[Skyliner70cc]

Earplugs.

[eltatertoto]

lol skyliner, i use fiber glass sheets, remember to make it rolled up and NOT forced in, or your bike will top out like its choked

[kerf]

Give this a read, it may help.

http://www.piteraq.dk/flight/muffler.html

[Alaskavan]

Thanks for the link. Very informative.

[fetor56]

Nice article kerf,thanks.
With the exhaust u could try putting stainless steel wool in there but i have my doubts weather it would work.
If u have the money i bet this Grubee one would be quieter,plus like kerf's article sayes "Longer pipes do, of course, help a bit."..."a little bit of jet assist is also realized."

[Stink Bike]

Originally Posted by Skyliner70cc

Earplugs.

I tried using earplugs but they keep melting.I think I might try steel wool.

[Stink Bike]

Originally Posted by kerf

Give this a read, it may help.

http://www.piteraq.dk/flight/muffler.html

This is well worth reading.

[andyinchville1]

I'd like to see somebody plumb a car muffler into the system....should be very quiet and not hamper exhaust flow since a car muffler is designed to flow enough for a car engine...try it you might like it! ;-)

Andrew