My raptor also squeaks.....they all do. In fact all bikes squeak after a while. I solved my squeaking problem by installing a Yoshi exhaust - no SA. Now all I can hear is her purring away.

I know...not the solution you are looking for, but it works for me....he..hehe..he

 

Yeah, I use that grease stuff too, because I heard WD-40 corrodes rubber. I just got it from AutoZone, and it comes in a Green Aerosaul can. It says "Whit lithium grease" on the label. I also use silicone sometimes, because that is supposed to be ok for rubber.