| Author | Message | ||
     2ismorethan4 |
I'm brand new to the Buell forums. I've been riding an S1 White Lightning at New England Dragway for the past 4 years, fell in love with Buell, and finally just bought a 2004 XB12s. The bike has 4,400 miles on it, and is almost completely stock. The only modification is a stock muffler with all (or most) of the baffles removed. This was done by the previous owner. The ECU / fuel map was not changed. The bike runs well, except for one issue. Once it comes up to temperature, the revs are slow to return to idle. When rolling to a stop, the rpms's hang around 2k until I walk them down with the clutch. When the bike is cold, it runs perfect. Anyone have this problem? Is it mostly likely a confused fuel map because of the gutted muffler? Thanks | ||
| Froggy |
The idle is set a tic too high. The adjuster screw is located right by the left air scoop. Turn it out a nudge, see if it improves. If not, try it again, but if lowing the idle doesn't solve it, you may need to perform a TPS reset. | ||
| 2ismorethan4 |
When the bike's cold, it idles around 1100 rpm I believe. Does this sound like a correct idle speed for the xb's? Also, I realized I posted this in the wrong section, its now in the Tech section. | ||
| Froggy |
Book calls for 1050-1100, I personally find the throttle often hangs when you do that, I usually recommend 1000-1050. | ||
| 2ismorethan4 |
Thanks, I'll give this a try. | ||
| 2ismorethan4 |
Since I just bought the bike I don't yet have a service manual. How difficult is it to reset the TPS? | ||
| 2ismorethan4 |
I turned the idle down to the 1000 RPM range and the revs fall right back down like they should. Thanks Froggy! |
