Oppi27 Posted September 26, 2006 Report Share Posted September 26, 2006 I've been trying to figure this out, and I'm going nuts. My throttle seems to stick when engaging the throttle at low rpms. If you smack the throttle, it runs like a champ. At idle, if you just push the throttle a little bit it starts reving higher( sticks there) If it's idleing and you smack the throttle, it goes up, and back down to idle. I thought maybe it was the cable(replaced), I dsconnected the thumb throttle( not it ) The cable isn't hanging up. I went back to the stock carbs, and the problem went away. Thats why I figure it must be something with the carbs. if I take the air filter off, and look at the slides, I can see they are working properly, but if you hit the throttle, just a little they both go up but not back down. They only go back down if you smack the throttle hard. Only sticks with throttle in , just a little. Went up and down with the needle, I tryed polishing the slides, and they seem to work fine. The bad part is, that it really runs great. No problems at the top, or bottom. jetting is spot on. Unless I'm missing the answer, I'm thinking maybe different needles, or I don't know. ANy info would be great. Running 2-1pipe,ram vavles,cool head,20cc domes,28 keihin's Quote Link to comment Share on other sites More sharing options...
Oppi27 Posted September 27, 2006 Author Report Share Posted September 27, 2006 BUMP After looking in the air box, I noticed that both slides do it. They stop at the same place if hit slowly. If hit hard they drop further. I thought maybe one was ahead of the other, but is not the case. HELP Quote Link to comment Share on other sites More sharing options...
Yamahammer Posted September 27, 2006 Report Share Posted September 27, 2006 did you buy them new or used if used maybe the previous person cut a couple links off the return springs to make the throttle easier. make sure the tors is all diconected and that the cable is not in a bind with the bigger carbs Quote Link to comment Share on other sites More sharing options...
g-unit Posted October 16, 2006 Report Share Posted October 16, 2006 My bike does the exact same thing with the stock carbs (TORS removed) sometimes only 6 times per tank. Always at the wrong time. 4th gear wheelie on pavement turned to cartwheelie. Bought new cables, lubed them. I tried to order some stronger springs but no luck. Some of the people i ride with say that it does stick when you take the TORS off. Going to take the carbs off again tomorrow and look for hangups in my slide but the throttle seems to snap back just fine when it's parked. Also, I don't have the idle screws in my carbs that are supposed to be installed with the TORS removal but I can't see that affecting anything. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted October 16, 2006 Report Share Posted October 16, 2006 did you buy them new or used if used maybe the previous person cut a couple links off the return springs to make the throttle easier. make sure the tors is all diconected and that the cable is not in a bind with the bigger carbs If he's using anything with the TORS on a set of aftemarket Keihins....that's be news to me...lol. I'm thinking it's your needles, as well. You're not overtightening your carb caps, are you? You don't need to wrench them on. Snug by hand is all you need. Did you happen to cut any loops off the springs or modify them in anyway? Is the plastic retaining collar sitting in the notched groove properly in the top of the slides? It's gotta be either the cable/springs/collars aren't right, or the needles are slightly bent. Only thing I can think of.... Are you using the tops of the carbs to adjust idle or remove slack? is there a hair of slack at the throttle? The carb top adjusters are only used to sync the carbs, and take a little of the slack out. Most of the slack adjustment should come from the throttle housing itself.... Quote Link to comment Share on other sites More sharing options...
g-unit Posted October 16, 2006 Report Share Posted October 16, 2006 Do the stock carb tops have a centering seat for the top of the spring? My aftermarket tops don't, maybe thats the the problem. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted October 16, 2006 Report Share Posted October 16, 2006 Because the springs are so large in circumference, there's really no where for them to go. The rubber oring on the outside edge holds the springs in place. G Unit...try this. remove both slides. Take a real, real fine grit sandpaper, say 400 to 600 grit, and lightly sand the outside the whole outdside of the slides. Make sure there're no sharp or rough edges. Then....tighten the tops on by hand, stock or aftermarket. Use the L bracket and screw to hold them in place. I had a problem with my stockers where I tightened the shit out of them with channel locks, and yep...they stuck. Soon as I released some pressure, they snapped back down on the slides. Quote Link to comment Share on other sites More sharing options...
g-unit Posted October 16, 2006 Report Share Posted October 16, 2006 Ya, I had a look at my tops where the spring seats and there is about a 1/4 inch difference in diameter between the o-ring and spring. My slides look like brand new, smooth and still black with no signs of wear. Apparently the guy that owned it before me had the problem and he had only ridden it a few times in the dunes since new. When the carbs are assembled and I push the thumb throttle, I can here and feel a faint click inside them 2 to 3 times when I apply it slowly from off to WOT. Sounds like the spring to me but don't know for sure. What I do know for sure is that it's pissin' me off! Quote Link to comment Share on other sites More sharing options...
dajogejr Posted October 16, 2006 Report Share Posted October 16, 2006 Do the springs look streched or clipped? Quote Link to comment Share on other sites More sharing options...
g-unit Posted October 16, 2006 Report Share Posted October 16, 2006 Do the springs look streched or clipped? nope, but the noise I hear is definately the spring. Is that normal? Quote Link to comment Share on other sites More sharing options...
TREELIZARD Posted October 17, 2006 Report Share Posted October 17, 2006 Mine will do the same thing but it only seems to do it after i wash it. what i do to fix it is take the carb tops off and pull the slides out and then spray the slides with wd-40 then put everything back together, that seems to take care of the problem. try it and let us know if it helps Quote Link to comment Share on other sites More sharing options...
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