Yeah I just recently finished re-jetting my carb on my 09' and i'm pretty happy with the performance difference with that done and the muzzy exhaust, but would like to get rid of that decel popping. I have read that switching out the stock pilot for a 40 should resolve things. Can anyone lead me to a good source where i might order a #40 pilot for the stock cvk34 carb. One other thing is i have been thinking about possibly doing the 331 big bore this winter but was wondering if my muzzy for the 250 will stand up to the plate or if i need a 300 exhaust.

 

Buy the pilot from kawi....38 may work better till you get the 331/340

Your Muzzy, like mine was designed for the klx300 .... no worries.

 

92064-1108 40 pilot jet
92064-1050 38 " " both are Kawasaki part #'s

 

Here for the #140.
http://www.bikebandit.com/houseofmot...-2008/o/m17202
Here for the#138.
http://www.bikebandit.com/houseofmot...s-2006/o/m9796

 

I got all my jets here.

http://motors.shop.ebay.com/merchant/pj_motorsports

 

good site for jets: http://www.psep.biz/ click on ATV, then click on fuel/intake acc. dunno if they have jets for the stock carb or not.