pump cover

[pro-rider46]

ive heard about those boyessen accelarator pump covers and was wondering if they will fit my 2005 450r

and another Q i have is if any one has a power now valve please tell me how good is it

[GPracer2500]

QS won't work on a 04/05 450r carb--only FCRs. And if an FCR has a leak jet (for you 06 450r and YFZ folks) then the QS has little to no value IMO.

The PN? No personal experience, but what I've seen shows that on an 04/05 they add a small amount of midrange/bottom-end at the expense of about an equal loss on the top end. Hardly enough of a difference either way to even feel seat of the pants. Personally, I'd spend my $100 elsewere.