Runaway Throttle S&S Super E Carb
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Runaway Throttle S&S Super E Carb
Hey guys, I need your expert help with this one: I rebuilt my S&S Super E Carb with the master rebuild kit a few weeks ago. After re-installing the carb, I took the bike out for a test ride. The bike ran great for a couple miles: faster and more responsive. Really running nice. Then the throttle went to wide open. I tried to roll off the throttle, but it remained stuck at wide open, so I shut it down and coasted to a stop. Tried restarting several times, but the throttle was still stuck wide open. I thought there might have been binding in the cables, so I replaced the throttle and idle cables with new Barnett cables. Went for a test ride today and the throttle stuck and went to wide open again after riding less than a mile. Fairly certain it's not the cables, so I must have done something wrong during the carb rebuild. Maybe over torqued something.... Any ideas on how to troubleshoot the carb is appreciated. Thanks!
Last edited by Plow64; 04-02-2011 at 05:41 PM.
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Thanks Dr Hess. I don't think it's a binding problem with the cables. When it happens I can still operate the hand grip normally (without binding), but the engine spools up to wide open throttle and stays stuck there until I shutdown the engine. If it were a binding cable, I would think the throttle setting would remain constant. Almost seems like the accelerator pump pushrod is stuck or something. I can't recreate the event in the garage, the butterfly plate operates normally there. Only happens when I'm out riding. What I plan to do next is to readjust the cables per the SM (third time) and then run through the S&S Quick Tuning steps to see if any of the carb adjustments are out of whack. Not sure what to do if that doesn't work...
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Hmm, checked out that PDF and see that the "E" and "G" carbs have two cables? Mine only has one; I know this because I replaced my handgrips on both sides and there is only one throttle cable going to the handle bar??? I have an S & S "E" carb that was put on with my top end job about 6 yrs. ago.
Sounds like you might have left a spring out or that return cable is binding up somehow or coming loose??
Sounds like you might have left a spring out or that return cable is binding up somehow or coming loose??
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