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Old 04-29-2017, 01:53 PM   #3
Roscoe   Roscoe is offline
 
Join Date: Nov 2016
Location: N. of Texas and S. of Kansas
Posts: 252
I see some advertised but I have no idea how much they actually quiet things down, they seem to lower the pitch more than anything which might be enough. I've wondered how Honda generators can be so quiet. You can tune a muffler to certain frequencies to cancel out the noise but it's tough to do over the wide range of scooter engines. Google "acoustics, single cylinder engine" and you'll see what you're up against. I'd probably try a muffler from a 150cc engine (some welding my be required) and see if that does the trick.



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