View Full Version : Loosing power and sound...

08-13-2013, 12:07 PM
I have a XB12R-04 with the following mods, Buell race pipe, Air box delete, crank case vent re-route.

Now to the issue....
It has lost some of itĀ“s nice rumbling sound, no stutter around 2500-3000rmp and a loss of Power especially in higher rpmĀ“s. It feels a lot like driving with the stock exhaust can (boring!).
I have tried to check if the race pipe has been blocked/broken but couldnĀ“t find anything so now IĀ“m qlueless...

Does anybody have an idea what the problem can be?


08-13-2013, 12:40 PM
It sounds like you are getting used to the sound and the feel of the power, ride/ drive something else and then go back to the Buell. At least thats what it sounds like to me, it has happened in multiple vehicles to me.

08-13-2013, 01:17 PM
No, IĀ“m sure something has happened, it feels completely choked up.

08-13-2013, 02:27 PM
Tps reset?

08-13-2013, 04:09 PM
you gained a lot of weight?

08-14-2013, 06:20 AM
I will try the TPS reset, but I donĀ“t really see how that could affect the noise level..??

08-14-2013, 06:29 AM
If you have a Jardine pipe, last I checked they have to be repacked every now and again

08-14-2013, 07:23 AM
This is the one I have. And wouldnĀ“t it get louder if it has lost the glass wool? Mine has gone quiet.


08-14-2013, 02:08 PM
there is no wool inside of the buell race pipe. It's just baffles and tubes. The buell race pipes are not very loud at all. When I had mine it was very quite. Just a tad bit louder than stock. Wondering if you changed helmets since? I have several and each one makes the exhaust note sound different. Also weather conditions will change the bikes performance as it will adjust to climate change.

08-15-2013, 07:23 AM
Got quieter? Loss of power? Hard to believe that aĀ*restricted exhaust is the cause. A dead cylinder maybe? Have you gone through all the usual basic diagnostic procedures yet? Check spark, fuel, air.