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Old 08-12-2009, 11:29 AM
restapukin restapukin is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: australia
Posts: 112
Default Re: Tips on quieting the muffler?

or maybe it would be profitable to focus on the noise that comes from the inlet side of things - through the carby 'throat'

on my grubee 49cc inlet noise is greater than exhaust noise,
.......say 60% inlet noise vs 40% exhaust noise at a guess....

I'm still thinking about easy ways to reduce inlet noise .... but i want to both quiet down the intake and improve performance (slightly) at the same time.

This should be pretty easy, I'm thinking, ... given the lack of attention to inlet noise implied by the use of a small lightweight plastic filter box.

his mark
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