Will not go over 85mph or 5000rpms in gear.

onetunepauly · May 23, 2011

I have a 2002 Buell X1 white lightning that will not go over 85mph or 5000 rpms in gear. Harley has replaced wiring harness, ECU, and plenty of other parts and still no fix. The motor company actually picked up the check. It is sitting in storage right now because of a small accident trying to get it into a moving truck but, I am looking for some ideas of what could be causing the power loss. Almost sounds topped out at 5000 rpms.

Just some thing I think might have done it. I did not winterize it last year and I touched the body with a ratchet while tightening battery screw (zap)It still ran. I also changed transmission fluid myself with no problems. The problem started in conjunction with a clutch problem.

konarider94 · May 23, 2011

sounds like its starving for fuel to me. Ive never worked on a tuber before but has anyone looked at the injectors or to make sure the fuel pressure is correct. the 02 X1 is fuel injected right? My knowledge is very poor on tubers.

onetunepauly · May 23, 2011

Yes it is fuel injected. I will have to look at the work list to see if they tried replacing them.

onetunepauly · May 29, 2011

The work list says that they changed the fuel injectors. Looks like it going to be trial and error for a long time. Ugh.

chitownsuburbs · May 30, 2011

plugged exuast

anrkizm95 · May 30, 2011

plugged exuast

[up]

grebesbakery · Jun 13, 2011

I have the same problem.....any luck on a fix???

xtremelow · Jun 13, 2011

Sure it has been check but just throwing this out there.

Bad ground off the battery may cause this if you are getting a bogging issue before the engine cuts out. Happened to my fiances bike and all it was, was the tail section ground wasn't connected good to the frame.

Spike240SX · Jun 13, 2011

I just picked up a 99 X1 With the same problem. Mine did run rough in the lower RPM's also. Turned out the O2 Sensor was bad and not coming out of cold start enrichment.

If you have ECMSpy and a cable, hook it up when the bike is completely cold. Under the Engine tab, Watch the Cold start enrichment. It should start around 160ish. Then as the bike warms it should start to drop. If it does not drop replace the sensor with Bosh Number 12014. Got mine for $16 at the local Napa store and it was in stock. Exact same sensor. Wire length and correct plug. Then take her out for about 30 miles and she run much better.

Hope this may help.

grebesbakery · Jun 14, 2011

I feel like mine may have started after I installed the "for race use only" ecm....

grebesbakery · Jun 14, 2011

took the race ecm out and put the factory one back in.....runs great,

Will not go over 85mph or 5000rpms in gear.

Help Support Buellxb Forum:

onetunepauly

New member

konarider94

Well-known member

onetunepauly

New member

onetunepauly

New member

chitownsuburbs

Member

anrkizm95

Well-known member

grebesbakery

Well-known member

xtremelow

Well-known member

Spike240SX

Well-known member

grebesbakery

Well-known member

grebesbakery

Well-known member

Similar threads

Latest posts