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    Is it possible to make a 2 stroke quiet?
    #1
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    So...i snagged an arctic cat 580 snowmobile today and really i got it because i wanted the clutches and it was $100. With some tinkering the damn thing fired up and ran great...and now iím questioning using it in my buggy since itís in such a nice, neat, easy to adapt package. I have a number of concerns about doing this....like no starter and it possibly being too wild and putting me right back where i started...but noise is my very first issue.

    it is LOUD.

    of course i know the pinging pipe is simply a characteristic of a 2-stroke and thatís most of the noise...much like a lawn mowerís noise is almost entirely mechanical rather than exhaust...but is there a way to tone that down? This rig is mostly used to putt around with my kids and theyíre sitting back there next to the expansion chamber.

    is there something that can be done to mitigate this issue?

    also, if someone is interested the guy also has a mountain cat 900...i thought about getting it but i donít think Iím man enough to start it...been sitting for a year and would probably let it go for $500-700.
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    Re: Is it possible to make a 2 stroke quiet?
    #2
    Keeper of the Asylum K-fab's Avatar
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    So much of the sound comes thru the walls of the expansion chambers it’s not funny. I fiberglass tape wrapped the three expansion chambers on one car I had and it helped with the sharp, ringing sound.
    Also, what are you using for an air box? Individual filters are noisy.
    Depending on the induction system of the sled (rotary valves are poppy sounding) you may be hearing intake sounds.
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    Re: Is it possible to make a 2 stroke quiet?
    #3
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    It's definitely the expansion chamber making all the racket...I think it's always the expansion chamber. It still has the factory airbox on it and I'll probably keep that...I don't see any reason not to.
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    Re: Is it possible to make a 2 stroke quiet?
    #4
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    Since you’re not concerned with getting every ounce of horsepower out of that engine, a nice quiet muffler and some heat wrap would probably do it. I’m sure you could just do straight pipe and a muffler, but I have to imagine that would seriously affect the power of the engine.
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