[xjdave]

What exactly is the foam thing that goes under the tank and over the air box for? I have pulled it off for about two weeks and no problems. I can't think of any reason why it would cause problems.

I think I'm going to save the weight and leave it off.

 

[DTMsurf]

Probably to help reduce noise, but just a guess. I dont have it and have removed them from other bikes Ive had.

 

[Herb]

Could also be to keep engine heat of the tank. The cooler the fuel, the better.