Front Sprocket Cover

[Anonymous]

Hi All,

Can anybody tell me the function of the foam rubber behind the front sprocket cover of my 81 GSX 1100? I'm in the middle of a top end overhaul and general cleanup, and after polishing all my other covers I really can't see myself putting this one back on with 21 years of accumulated gunk behind it.

[saaz]

I have the same on my 78 GS1000. As far as I know, it is sound insulation. Along with the rubber ring screwed onto the countershaft sproket, it reduces the chain noise.

[Anonymous]

I think it is only for noise-mine is gone for a couple of years

[Dink]

the expanded foam is there for noise reduction, the gunk will clean off easily with kero , then you can polish that case too. 8O
Dink