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Author Message   Endoman28 Posted on Monday, August 06, 2007 - 09:34 pm:        in need of tech help on 04 XB12R. bike has 21,938 miles on it bike left dealership with buell race kit on. around 20,000 mile bike started surging badly at any RPM any Speed and any Gear. 20,000 mile service perform by HD and Buell shop Tech says can't fin anything wrong. put new coil in new plugs reset TPS and AFM on digital tech, chech fuel tanks vent to make sure its not vapor locking. After 20,000 service the surging stopped for a week or so then came back. Tech say there are no trouble codes showing up so they cant fix it. "you will just have to deal with until something finally brakes or shows a trouble code." My concer is getting run over by a car when this happens. Please any help would be great   T9r Posted on Tuesday, August 07, 2007 - 12:51 pm:        Did the tech check the ignition timing?   Endoman28 Posted on Wednesday, August 08, 2007 - 03:56 pm:        yes, yesterday i changed out the race ecm and put the stock ecm back in so far no problem but some times it will take a day or two for it to act up. THANKS   Buellinachinashop Posted on Wednesday, August 08, 2007 - 04:22 pm:        Is there a chance your throttle is sticking open?   Endoman28 Posted on Thursday, August 09, 2007 - 05:34 pm:        when i pulled the air cleaner inner cover off with the engine off the throttle plate moved smoothly and never seemed to hang at all. THANKS FOR YOUR HELP   Odinbueller Posted on Thursday, August 09, 2007 - 06:49 pm:        Check for an intake leak. Get bike started, hold throttle open to about 2000 RPM, then squirt some 2+2 or brake clean on your intake seals. If the idle jumps up, you have an intake leak. Replace both seals, ensuring that you adequately lubricate the new seals prior to re-assembly. Clean oil is fine, silicone o-ring lube is also good. Hope this helps Chris   M1combat Posted on Thursday, August 09, 2007 - 08:05 pm:        Only if said silicone o-ring lube is O2 sensor safe...   Fullpower Posted on Thursday, August 09, 2007 - 09:04 pm:        silicone LUBricant, NOT silicone adhesive nor RTV.

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