richb Posted February 21, 2004 Report Share Posted February 21, 2004 Since I rebuilt my top end with a one over bore and wiseco pistons, cool head with 18cc domes, stock carbs with 300 jets, carbon-tech reeds, K&N filter, 4 degree advance stator, tors removed with twist throttle and toomey T5's, I have had a problem with the left cylinder not idleing on its own and the pipe not warming up(luke warm at best). The right cylinder is idleing but a bit high and the pipe warms normally. I have tried everything to slow the idle on the right side with no luck. Once the engine is revved, the left cylinder comes to life and the bike runs perfectly. At idle, the left pipe smokes and the right doesnt. I tried changing plugs and after a spark test have found that there is good spark. Any ideas? Quote Link to comment Share on other sites More sharing options...
orion6781 Posted February 21, 2004 Report Share Posted February 21, 2004 Did you try adjusting the idle? Quote Link to comment Share on other sites More sharing options...
sweetshee4312 Posted February 21, 2004 Report Share Posted February 21, 2004 are the carbs syncd and $h1t Quote Link to comment Share on other sites More sharing options...
richb Posted February 21, 2004 Author Report Share Posted February 21, 2004 I did try to adjust the idle with no result and the carbs are clean as well as synched. Quote Link to comment Share on other sites More sharing options...
zzzz Posted February 21, 2004 Report Share Posted February 21, 2004 Could it be the pilot jet? Quote Link to comment Share on other sites More sharing options...
richb Posted February 22, 2004 Author Report Share Posted February 22, 2004 I am running 32.5s on the pilots and have checked them. They seem to be clear. Quote Link to comment Share on other sites More sharing options...
rebelbanshee2 Posted February 22, 2004 Report Share Posted February 22, 2004 i would double check the pilots. mine was doing the same and it was the pilot. although it could be an airleak Quote Link to comment Share on other sites More sharing options...
sweetshee4312 Posted February 22, 2004 Report Share Posted February 22, 2004 get some ether(starting fluid) start ur bike and spray it around then boots and sh#$ if it idles up, there is an air leak(wd-40 works to) Quote Link to comment Share on other sites More sharing options...
richb Posted February 22, 2004 Author Report Share Posted February 22, 2004 I will check for an air leak and let you know. Someone suggested checking the float needle adjustment. What do you think? Quote Link to comment Share on other sites More sharing options...
Lepew Posted February 22, 2004 Report Share Posted February 22, 2004 Sounds like a plugged pilot. As soon as you give it throttle it starts to pick up fuel from the needle. Had this problem right after I changed main jets and didn't get all the sand out of the carb. Quote Link to comment Share on other sites More sharing options...
boonman Posted February 23, 2004 Report Share Posted February 23, 2004 It sounds like a plugged pilot to me as well. Also, did you drill and tap the idle screws into the side of the carbs? if you did, be sure that you removed enough material from the side of the hole so that the screw can get down into the slide bore enough to contact the slide itself. You need to remove at least 1/8" of material to allow the proper clearance. Also, is the choke tube in place? If not, you are going to melt that right cylinder down in no time flat once you start riding it..... Quote Link to comment Share on other sites More sharing options...
Rescuejeff Posted February 23, 2004 Report Share Posted February 23, 2004 Rich, sounds like you need to drink beer and work and work on this. I'm getting parts tomorrow, call me, or see me later................ Quote Link to comment Share on other sites More sharing options...
BansheeBrian Posted February 24, 2004 Report Share Posted February 24, 2004 I'm expiriencing that problem right now and it is an air leak.Check you boot clamps and make sure they are tight.Also inspect for tears. Quote Link to comment Share on other sites More sharing options...
richb Posted February 25, 2004 Author Report Share Posted February 25, 2004 After a leak check, I found a tear in the left intake manifold. After replacing it, the bike ran better, but the the left pipe is still not warming up. The idle screws are making contact with the slide, the pilot jets are clear and the choke tube is in place. All are great ideas, but the problem still remains. After fiddling around with it, I have noticed a fair amount of gas has built up in the left exhaust. I a going to take it out to the dunes this weekend and see if it just needs to be blown out. Will check in on Monday with the results. Quote Link to comment Share on other sites More sharing options...
Ducman Posted February 25, 2004 Report Share Posted February 25, 2004 Sometimes after messing around for a while with a problem that causes it not to run right even when you get it fixed it wont run right due to all the fuel and oil built up in the system. She might come around when she warms up just be cautious. Quote Link to comment Share on other sites More sharing options...
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.