F flybytaco Member Oct 2, 2002 22 0 Nov 5, 2002 #1 i just installed a 440 kit in my freinds xr and a rev block and ran 110 race fuel and when its at about 3-4 throttle it pops any advice?
i just installed a 440 kit in my freinds xr and a rev block and ran 110 race fuel and when its at about 3-4 throttle it pops any advice?
I IrishEKU A General PITA. LIFETIME SPONSOR Apr 21, 2002 3,806 0 Nov 5, 2002 #2 "Pops" (read) backfire? If so the jetting is off. That would be my guess, if you haven't already, dial it up a bit with some larger jets to compensate for the extra .40. I'm sorry but I don't know the #'s for Honda Carb's. Good Luck! Last edited: Nov 5, 2002
"Pops" (read) backfire? If so the jetting is off. That would be my guess, if you haven't already, dial it up a bit with some larger jets to compensate for the extra .40. I'm sorry but I don't know the #'s for Honda Carb's. Good Luck!