another 450r jetting question??

[gooch450r]

I'll make it quick, its an '05 450r and I'm looking for some input.

Its has:

HRC cam (+full kit)
HRC needle, 3rd clip
185 main
stock pilot
Uni Filter
Whitebrother's Alumipro with titanium head pipe.

Its will lightly back fire when letting off the throttle. Am I close on the jetting? should I go up 1 or 2 size's with the main? Should I increase the stock pilot?

Any helps appreciated thanks.

[wvspeedfreak]

Back your air/fuel mixture screw out 1/4 turn at a time and try it.If you get past 3 full turns out(from the completely seated position)you need to go up in pilot size.