cvbadass Posted September 15, 2007 Report Posted September 15, 2007 :sad: We wanted to correct the breaking up at mid to full throttle, we lowered the needle clip one position to make it richer, took it for a ride and it seemed to help, also raised the idle. We then cleaned the k&n air filter, adjusted the two screws on top of the carberators to bring down the idle, took it for another ride, and now it is worse than what we started. main jet is 320, clip in 3rd position, fmf exaust mild port job, cool head. We need help, the engine sounds like it is reving fast and the bike can't ketch up, also some backfiring. Quote
RZBansheeMan Posted September 15, 2007 Report Posted September 15, 2007 :sad: We wanted to correct the breaking up at mid to full throttle, we lowered the needle clip one position to make it richer, took it for a ride and it seemed to help, also raised the idle. We then cleaned the k&n air filter, adjusted the two screws on top of the carberators to bring down the idle, took it for another ride, and now it is worse than what we started. main jet is 320, clip in 3rd position, fmf exaust mild port job, cool head. We need help, the engine sounds like it is reving fast and the bike can't ketch up, also some backfiring. What screws exactly did you turn on the tops of the carbs and do you still have the TORS on there ? Quote
cvbadass Posted September 15, 2007 Author Report Posted September 15, 2007 we still have the tors, unplugged though, we were told to turn them large flat head screws on top of the carb, we turned them both about half a turn to lower the throttle. the bike ran fine before we started, except for breaking up on the top end. Quote
RZBansheeMan Posted September 15, 2007 Report Posted September 15, 2007 we still have the tors, unplugged though, we were told to turn them large flat head screws on top of the carb, we turned them both about half a turn to lower the throttle. the bike ran fine before we started, except for breaking up on the top end. Most likely you have your carbs out of sync now. I would recommend getting the TORS removal kit and putting actual idle adjustment screws on the carbs. Quote
cvbadass Posted September 15, 2007 Author Report Posted September 15, 2007 (edited) We are supposed to ride tomorrow, if we turn those screws back will that work for now? Also can we resync the carbs with those screws? also what are the air screws supposed to be set at for a modified motor, and how do i know if i am lean or rich? Edited September 15, 2007 by cvbadass Quote
samc Posted September 15, 2007 Report Posted September 15, 2007 im in the same boat as you. i have the tors kit though, them screws wont do shit inless your tors is still on there. make sure your carb cross over tube in on there i forgot mine and it was popping and backfiring and i put the tube on and didnt have as much. Quote
cvbadass Posted September 15, 2007 Author Report Posted September 15, 2007 New info, I just found out that he has been mixing yamalube 2s instead of 2r. I know 2s is for injected motors, is it possible that could be screwing up his banshee? Quote
samc Posted September 15, 2007 Report Posted September 15, 2007 i dont think it would screw up your motor but drain all your gas/oil and get 93 octane with 2r or maxima 927. there the best oils ever. Quote
locogato11283 Posted September 16, 2007 Report Posted September 16, 2007 you sure this isnt an electrical problem? check the ground on your coil. where it bolts to the frame needs to be bare metal in order for it to function properly. just something to look at before you go doing any more jetting that you dont need to. Quote
cvbadass Posted September 16, 2007 Author Report Posted September 16, 2007 We checked the coil, all good, we drained the gas and filled up with new and now runs better, but still breaking up. put in new plugs, and plugs look ok, old ones looked a little burnt. any other ideas on why she would be breaking up? also she doesn't smoke much at all unless first started and idled for a while, one pipe smokes more than the other, but so does my brand new 06 banshee. Need help, going to race with some 450's tomorrow, and this banshee should take them, especialy if running right. thanks for any help I can get!!! Quote
Handyman Posted September 16, 2007 Report Posted September 16, 2007 What size pilot are you running??? My '99 did the same thing and I installed a 27.5 pilot and that cured the problem. I'm running a 310 main and a 27.5 in my '99 and it's mostly stock motor wise Quote
cvbadass Posted September 16, 2007 Author Report Posted September 16, 2007 Not sure what size pilot, but the bike was running fine before i am assuming that is some kind of adjustment that we need to make. Quote
Handyman Posted September 16, 2007 Report Posted September 16, 2007 I woulod take the carbs apart and clean the shit out of them just for shits and giggles...The smallest piece of dirt will cause a shit load of problems if it's in the right place Quote
Screaming Yellow Zonker Posted September 16, 2007 Report Posted September 16, 2007 You should have raised the needles instead of lower. you leaned it out when you did that. plus I would also step up on the jet size. With only a few mods I was running 370's and it was ripping hard. I think your lack of smoke is lack of fuel. you probably have a lean pop at the top end. If that happens you could damage your engine quickly. Have you noticed it running hot? Quote
cvbadass Posted September 16, 2007 Author Report Posted September 16, 2007 We moved the clip down one notch which should raise the needle. It does run hot somtimes out in the sand with all of the spinning. I guess we can rais the needle some more and go to a bigger jet. is breaking up and some backfiring always a sign of running lean or could it be somthing else? Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.