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Buell Forum » Old School Buell » Archive through July 15, 2015 » Advice needed for X1 continues to run bad « Previous Next »

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Moto619
Posted on Friday, July 03, 2015 - 12:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have a 99 X1 that for the past few years has not run right. The bike sputters once the engine gets hot and then will stall out and wont start until the engine gets cool.

Based upon the advice of this forum I purchased a Race ECM put it in and it ran perfect the bike bike had no issues. A month later first time I rode on the freeway after about 10 minutes bike goes right back to square one. Sputtering for a few miles then stalling.

I am ready to sell it but when it runs I love the bike.

What would you recommend ? Carb conversion? Try another ECM? Find a good Buell mechanic?
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Nukeblue
Posted on Friday, July 03, 2015 - 01:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

have you tried a new temp sensor yet?
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Harleyelf
Posted on Friday, July 03, 2015 - 04:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If the temp sensor doesn't fix it, check the cam position sensor. They smell burnt when they fail.
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Two_seasons
Posted on Friday, July 03, 2015 - 05:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If it seems like your bike is idling on one cylinder, and has trouble rev'ing at idle, it may be your Engine Temp Sensor.

Al at American Sport Bike sells them. May as well change out your O2 sensor while you are in the area. If you break off the back end of the O2 sensor with a pair of vice grips, then you can get a socket on it to remove from the exhaust bung.

http://americansportbike.com/newdir/Item/17035
http://americansportbike.com/newdir/Item/16079

Hope you get it fixed. These are great power to weight/handling bikes!
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Mighty_mouse
Posted on Friday, July 03, 2015 - 09:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Your not mentioning anything about the engine light. Did it come on when it started to stall? Do you have access to ECMspy? If not you can run a jumper wire between 2 of the wires at the diagnostic plug and the engine light will flash a numeric code. You can then look up the DTC to narrow down your troubleshooting. I started out that way before getting ECMspy.

MM
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Steveford
Posted on Friday, July 03, 2015 - 11:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's been a while but if I remember correctly try this: remove the cover for the electronic ignition pick up (held on with 2 rivets) and the protective plate (held on with two screws) and run the bike until it gets hot and croaks.
Spray the sensor plate with a misting of cold water from a pump bottle. If your bike starts right back up that's where your problem lies.
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Bluzm2
Posted on Sunday, July 05, 2015 - 12:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What Steveford said is definitely worth a try.
The head temp sensor is an easy replace and definitely worth doing.
I worked on an X1 a while back and it had the same symptoms. Virtually unrideable.
I replaced the head temp sensor and reset the TPS. The owner said it had never run better.

The only hassle is getting the old sensor out and the new one in. You will need a deep socket slit up the side to provide clearance for the wire. The socket is much like a O2 sensor socket used for cars but smaller.
I used a high speed cut off to cut the slot in a cheap deep socket. I'll post the socket size later when I hit the garage.

ECM spy will tell you immediately if you have a temp sensor problem. Just watch the value as the motor warms up. If the value doesn't change you found the problem.

Just thought of something, if memory serves they had two different locations for the temp sensor, the earlier ones were down the "chimney" the later ones were much more accessible.
Someone chime in to correct me if my memory is failing... : )


Brad

(Message edited by bluzm2 on July 05, 2015)
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Firemanjim
Posted on Sunday, July 05, 2015 - 09:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You do not mention looking at bike with ECM-Spy to see what AFV is and what engine temp readings are. No way to tell what is going on ,just guessing unless you look at ECM. Sure sounds like it is skewing badly--- after riding for 10 minutes on freeway you would have been in the learned fuel area long enough for changes in AFV.
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Bluzm2
Posted on Monday, July 06, 2015 - 08:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Jim,
Correct on all counts... Just going on past experience with a ill tempered X1. The one I worked on had readings all over the place.

Can you confirm my temp sensor location recollections above? Didn't they move it to an outer head fin on the later versions?
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Moto619
Posted on Monday, July 06, 2015 - 10:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Here is the complete history of what is going on with this bike. For the past few years the bike has been running bad it bogged, lurched, and sputtered all the time (even when cold) but when it got hot it would stall and then restart sometimes immediately sometimes I would have to wait a minute or two. I purchased ECM-SPy and did a TPS reset there were no error codes. Nothing changed.

I then tried to change the mapping with ECM -Spy. Following this the bike would not run there were multiple error codes. In talking to others on this forum I learned that for some reason only with the 99 model X-1 ECM spy will ruin the ECU when attempting to change the mapping.

I then bought a race ECU installed it did a TPS reset there were no error codes and the bike ran perfect. I put about a 100 Miles on it mostly short trips but some were 20 minutes again no problems. Then I get on the freeway after only riding 10 minutes it started bogging / hesitating again even worse that before. Then it eventually stalled I let it sit for 5 minutes it started I made it home with it bogging and hesitating the whole way home.

I am out of town now but when I get back I will run the ECM-Spy to see what it says.
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Hootowl
Posted on Monday, July 06, 2015 - 11:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Next time it happens, open the fuel cap and see if things improve. Sometimes the fuel vent (either the tipover valve or the hose) can get clogged/blocked, resulting in a partial vacuum in the tank.
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Yo_barry
Posted on Monday, July 06, 2015 - 12:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've got an 01 S3T. When the head temp sensor failed, it did not throw a code.

The sensor on mine is in the rear head, down in the chimney. It can be removed with the special socket mentioned above. It is a 1/2" deep socket with a slot cut length wise for the wire.

Al at American Sport Bike has the sensor and the sockets.

I'd change that sensor first! Then go back with ECM Spy and see if anything else is giving you a code. While you have ECM Spy running, you can reset the TPS and Fuel/Air ratio to 100.

Barry
Hollister, CA
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Yo_barry
Posted on Monday, July 06, 2015 - 12:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

OK, correction, I'd change the sensor after I checked the fuel vent.

btw, it that temp sensor has been bad for a while, your plugs are probably fouled and should be changed.

Barry
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Moto619
Posted on Monday, July 06, 2015 - 02:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok thanks I will try that
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Bluzm2
Posted on Monday, July 06, 2015 - 09:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Barry, ya beat me to the punch.
Here's a couple shots I took of a trashed head I had laying around.

Like Barry said, it's a 1/2" deep socket.








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Paulson
Posted on Saturday, July 11, 2015 - 02:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Moto619 - I recently had an issue on my X1 where I could ride for about 10 miles or so,
then the bike would bog down and giving it throttle would make things worse.
Getting off the throttle would make it better. Letting it sit for a minute (OFF) would
clear things up for a short while, only to return. If this is what you are seeing,
then it could be your fuel pressure regulator or pump. My regulator o-rings were shot,
keeping the pressure too low.
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