| Author |
Message |
    
Blackbluebolts
| | Posted on Friday, April 02, 2010 - 03:48 am: | 
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I had my 07' xb12r stored at a HD dealer for the winter. It is nearly new with around 500 miles on it, but it sat for over a year of its life, and just for my peace of mind i had them put in a new battery, oil change w/filter, new plugs, and perform an overall check that everything on the bike was good to go. They also installed a Jardine GP1 exhaust. I asked them if I would see any loss of power, and if they would need to make changes to the ecm, but they kindof shrugged it off and said hopefully not. They made no changes to the ECM. I picked it up, it sounded great and ran great, for about 45 miles worth of riding.
One time I got on it and saw alot of power loss in my lower rpms, stuttering, and loud sucking noises from the airbox(the airbox cover is aftermarket with two raised vents in the front). Unless I was giving it alot of throttle it wanted to die on me. I made it home but the next day when I tried to start it, it continually turned over, sputtered alot, and ended with a deafening backfire. Same thing for the next time I tried it.
Ive got ECMspy, but the cable is still on the way.
Is it possible that the new plugs are fouled already from something I did.
Is a TPS reset the first thing I should do?
Ive had 2 Buells for about a year now, but have never had any problems or reason to work on them mechanically, so it would be great to get the opinion of a couple weathered buell enthusiasts before I go trying things that are wrong or unnecessary. Thanks!!!
-Rob |
Kusskid76
| | Posted on Sunday, April 04, 2010 - 09:38 am: |
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Black, I'm not familiar with FI bikes or the jardine exhaust but I do know that any freer flowing exhaust with stock jetting or in your case fuel map will cause a rich condition.
I know with the carb'd bikes when you put on an aftermarket exhaust you usually have to go down one size on the pilot jet and up one size on the main.
Check your plugs they are probably fouled and I'm sure someone here on bad web can supply you with the proper fuel map good luck |
Bartimus
| | Posted on Wednesday, April 21, 2010 - 01:58 am: |
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it also sounds like you need to reset your TPS, they probably didn't do that at the stealership when they installed the pipe.
Although, 45 miles of riding should have been enough for the ecm to learn the pipe.
you will lose some power in the bottom end on a 12 with the Jardine. the twelves seem to run better with an exhaust that still uses the exhaust valve, like a special ops.
I've had good experiences with a Jardine on my XB9's, remember to repack it every 5,000 miles or it will get LOUD, and tear itself apart... |
Terrys1980
| | Posted on Wednesday, April 21, 2010 - 10:20 am: |
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A TPS reset would be a start. You will also need to run the bike in closed loop learn for 5-10 miles or more continuously to help the ECM adjust. CLL is 40-70 mph with steady throttle.
I'm not familiar with FI bikes or the jardine exhaust but I do know that any freer flowing exhaust with stock jetting or in your case fuel map will cause a rich condition.
More air in and out would be a lean condition and would require some tuning even with the race ecm, especially with the Jardine pipe. |
Blackbluebolts
| | Posted on Wednesday, April 21, 2010 - 11:46 pm: |
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Thanks guys for the advice thus far. My wife gave birth to our second daughter on April 8th, so my time with the Buells has been significantly reduced. The first thing I did was check the spark plugs, and although both produced a spark, one spark was weak and not bridging the gap directly. I replaced both and the bike started fine. It still ran improperly and would begin to choke and sputter around 20-35mph. The engine light was also on. After running in closed loop learn, the engine light turned off, and the problems ceased for maybe 25 miles worth of riding, but now the symptoms are coming back again. Im hoping the TPS reset and looking at/adjusting the maps will help, but ive had problems getting the program to work when connected to the motorcycles, so im working on that right now. Thanks again for the help! |
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