Question about sound dampening

biknut · Nov 7, 2010

I've read about using a mouse pad to dampen gear noise on the primary side. My question is do you place the mouse pad on the inside of the cover, or the outside?

Also is it usually possible to remove the cover and reuse the gasket, or should you plan on replacing the gasket?

bairdco · Nov 7, 2010

i dunno about the mouse pad, if it would fit inside, you could probably glue it in there. it might rub though.

the best thing i've found, and use on all my bikes, is Plasti-dip spray paint. you can get it at Ace. it's the same stuff that comes in a can you dip tool handles into. just spray it on thick inside the cover, let it dry, and it cuts down most of the noise.

as for the gasket, i reuse mine. i've had the cover off 50 times and i'm still on the same gasket. it actually doesn't really do anything important anyway. there's no fluids inside and if the cover's tight it's not gonna get saturated with water, so it's pretty much useless. i mean, if you were swamp-doggin' it through 3 foot puddles it might be a good idea to have it, but otherwise...

(edit) i'm not recommending you run it without a gasket, i'm just sayin..

biknut · Nov 7, 2010

bairdco said:
i dunno about the mouse pad, if it would fit inside, you could probably glue it in there. it might rub though.

the best thing i've found, and use on all my bikes, is Plasti-dip spray paint. you can get it at Ace. it's the same stuff that comes in a can you dip tool handles into. just spray it on thick inside the cover, let it dry, and it cuts down most of the noise.

as for the gasket, i reuse mine. i've had the cover off 50 times and i'm still on the same gasket. it actually doesn't really do anything important anyway. there's no fluids inside and if the cover's tight it's not gonna get saturated with water, so it's pretty much useless. i mean, if you were swamp-doggin' it through 3 foot puddles it might be a good idea to have it, but otherwise...

(edit) i'm not recommending you run it without a gasket, i'm just sayin..

Thanks for the reply. As a matter of fact I was just using some of the spray stuff you're talking about last week. That sounds like a good idea that I'll give a try. I been wanting to open it up to lube the crank gear anyway.

yendorrodney88 · Nov 8, 2010

biknut said:
Thanks for the reply. As a matter of fact I was just using some of the spray stuff you're talking about last week. That sounds like a good idea that I'll give a try. I been wanting to open it up to lube the crank gear anyway.

How ya goin biknut,you can use just plain ol cardboard,I have used a piece of the box my kit came in,take your cover off and trace around it and cut it slightly larger than what you traced,about 1/8 to 1/4 inch then push it in firmly,i haven't had any problems and does reduce noise and didn't use any glue,enjoy your rides....yendorrodney88

biknut · Nov 8, 2010

yendorrodney88 said:
How ya goin biknut,you can use just plain ol cardboard,I have used a piece of the box my kit came in,take your cover off and trace around it and cut it slightly larger than what you traced,about 1/8 to 1/4 inch then push it in firmly,i haven't had any problems and does reduce noise and didn't use any glue,enjoy your rides....yendorrodney88

Thanks yendorrodney, that's a good tip. I like the idea of the plasti dip too and i have a can of it so I'll try that first. If that's not good enough I'll try some cardboard in there too.

biknut · Nov 10, 2010

bairdco said:
i dunno about the mouse pad, if it would fit inside, you could probably glue it in there. it might rub though.

the best thing i've found, and use on all my bikes, is Plasti-dip spray paint. you can get it at Ace. it's the same stuff that comes in a can you dip tool handles into. just spray it on thick inside the cover, let it dry, and it cuts down most of the noise.

as for the gasket, i reuse mine. i've had the cover off 50 times and i'm still on the same gasket. it actually doesn't really do anything important anyway. there's no fluids inside and if the cover's tight it's not gonna get saturated with water, so it's pretty much useless. i mean, if you were swamp-doggin' it through 3 foot puddles it might be a good idea to have it, but otherwise...

(edit) i'm not recommending you run it without a gasket, i'm just sayin..

This turned out to be a good mod. I sprayed 2 coats of palsti spray on the inside of the cover. Today when I went for a ride the difference was noticeable. Not silent or anything like that but noticeable. It went from way loud to just some noise.

bairdco · Nov 11, 2010

no matter what you use, there's always gonna be some noise. i've used cork gasket material, pink rubber gasket material, rubberized undercoating, and finally, Plasti-dip.

i think the cork and rubber were a bit quieter, but not by much.

Dave31 · Nov 30, 2010

I was screwing around one night and tried this (photo). First I am shocked that after all my riding they are still on and surprised it has made the motor a little more quiet.

Just fuel line hose that I trimmed and notched to fit in between the fins.

Hammond Egger · Nov 30, 2010

I'm not very creative so I used guess what......sound deadening board glued inside the cover. Had to thin it down some. At least now I can hear the exhaust.

Dan · Dec 3, 2010

LOL Hammond. That is crazy enough to work. (I tried to find a clip of Lesly Nealson saying "thats just crazy enough to work")

sound deadening board - Google Search

.flg.

B.C Rider · Dec 4, 2010

My buddy has a boat, we used this rubber with lead in it,
found it in a marine supply place.
Had a little foam on one side but that came off super easy.
Worked great.

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Question about sound dampening

biknut

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bairdco

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biknut

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yendorrodney88

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biknut

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biknut

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bairdco

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