Wont idle, clean out, hard to start

[JamesB88]

My 05 Banshee is pretty close to stock, T-5 pipes, +4 timing, .02 off the stock head, still on standard bore with stock pistons, has a boost bottle, and a k&N with no air box lid. When I first bought the bike it ran great, started right up, idle'd took a couple trips around the yard to clean it out and it was ready to ride. Well the throttle cable started sticking so I ordered a new one. When I put it on it would only run on the right side. I pulled the left carb off and cleaned it all out. Still on ran on right side. I pulled the topend apart, still see cross hatching in the bores so I bought some oem rings (98 bucks at dealer!) and a new head base gasket, had the head milled at that time. After messing with the throttle cable some more got it to run on both cylinders again. My problem now is it wont idle, cold or hot. It starts right up when its cold, no choke or anything but seems to rev up quite a bit then come down to a idle and die if you do not give it gas.. My other issue is it seems like I have to warm it up for a good 10 minutes before it is cleaned out and wants to rev like it should. After you get it hot its hard to start, have to hold gas open to get it to fire back up, used to kick once and idle fine. Running 91oct and klotz mixxed at 40;1, b8es plugs in it. I was thinking maybe the needles are worn or floats set to high? I'm not the best with working on getting carbs to run right. I didnt change the jets or anything, just cable. Sorry for such a long question but any suggestions would help.

[Larry's Shee]

Stock carbs? With or w-o tors box on carb ? Rest of TORS diconnected? Carbs synced? Slides in correct carb? Choke tube on? Cleaned carbs lately? Float level?

[muggzy]

Is your elevation the same as the guy you bought it off of? Sounds like it you just got it and it could be running really lean or really rich. I had similar symptoms when I soaked my air filters by riding through a few muddy puddles. Not that you did but the racing RPMs and failure to idle could indicate that your jets (pilots or mains or both) are really off. Were the boots on the throttle cables both pushed all the way down to seal against air leaks?

 

If it wasn't for the erratic running and just dies at idle, I'd have to go with the TORS box questioned in the last post.

Edited October 31, 2010 by muggzy

[JamesB88]

Is your elevation the same as the guy you bought it off of? Sounds like it you just got it and it could be running really lean or really rich. I had similar symptoms when I soaked my air filters by riding through a few muddy puddles. Not that you did but the racing RPMs and failure to idle could indicate that your jets (pilots or mains or both) are really off. Were the boots on the throttle cables both pushed all the way down to seal against air leaks?

 

If it wasn't for the erratic running and just dies at idle, I'd have to go with the TORS box questioned in the last post.

 

 

Stock carbs, Tors removed, has idle screws and nothing on top of carbs, electronics part unhooked. Choke tube in place, just cleaned both carbs after it was giving me trouble after putting the new cable on it. Unsure of the float level, I didn't change any thing when I cleaned them, just took apart and put back together just like they where.

 

Bike has been in Kansas City since new so not a elevation change. Bike ran perfect when I first got it, been having issues since I changed the throttle cable.. Looks like I'll search for how to sinc the carbs.