So bike starts right up and idles fine for about five seconds, then dies. If I start it and give it throttle, it will throttle up normally for about five seconds, then die. After it dies, I can hear the fuel pump whizzing for a few seconds like it does when I normally turn the bike on. Can you give me a list of probable causes? Greatly appreciated.
Won't run more than about five seconds.
- Thread starter C2H5OH
- Start date
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It doesn't die abruptly. Just slowly dies.
rchuff
Well-known member
first off what year, model bike, mileage, any mods. this all helps us guys help you out!
Not like that. More like it runs out of gas.
2004 XB12R w/40K miles. Race ECM. Not sure of the exhaust. Bought it a year ago and ran fine.
rchuff
Well-known member
silly question have you tried a tps reset lately? you have some high miles it could need to be reset.
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That was my first assumption. Would the TPS just suddenly go bad?
BuellyBagger
Well-known member
Not likely, but easy to test with ecm spy. Just watch the voltage or the % open in real time and make sure it smoothly coincides with opening and closing the throttle. Can be done with an ohm meter too I'm sure.
At least the 04 tps is cheap. Parts cross thread has the auto parts equivalent #
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Link to that thread?
BuellyBagger
Well-known member
Search feature upper right of the page...
http://www.buellxb.com/forum/showthread.php?26310-Parts-cross-reference-thread
rchuff
Well-known member
Sometimes they go bad and sometimes they get out of adjustment. It might be good and just need to be reset . You haven't unplugged the 02 sensor wire by chance. Bike will run for a couple seconds and then shut down if unplugged.
rchuff
Well-known member
Not for iPhone. Android or laptop. You could buy cheap Android phone and get a hold of AZmidget ( forum member) for Bluetooth dongle. Ecmdroid is free on Android phone to download. It's a little price to pay for working on bike but WELL worth it.
Will any Android phone work? Are there minimum specs?
Chicknstripn
Well-known member
Yes any android will work.
However, before you start buying stuff to "fix" your bike do all the stuff that costs you nothing but time.
First: download a service manual. www.buellmods.com
Then, insure that your battery is good. Use the trouble shooting info in the service manual to help you perform a battery test. Check all the ground connections on the bike and insure your battery terminals are clean and tight. Check your wiring for any chaffing. Since your issue is either spark, fuel or air I'd check wiring and connectors at fuel pump, spark plugs, TPS, cam position sensor and fuel injectors. Remove the front pulley cover and check those connections for any signs of continuity problems.
Pull your spark plugs and inspect them. What do they look like compared to the illustrations of a good spark plug in the manual?
Have you performed any type of modifications to your bike prior to this issue?
There's a lot of information and a lot of experience to be gained by simply taking the time to inspect the physical items that COULD be causing your running issue.
Report back with your results and questions that you encounter along the way.
Good luck
However, before you start buying stuff to "fix" your bike do all the stuff that costs you nothing but time.
First: download a service manual. www.buellmods.com
Then, insure that your battery is good. Use the trouble shooting info in the service manual to help you perform a battery test. Check all the ground connections on the bike and insure your battery terminals are clean and tight. Check your wiring for any chaffing. Since your issue is either spark, fuel or air I'd check wiring and connectors at fuel pump, spark plugs, TPS, cam position sensor and fuel injectors. Remove the front pulley cover and check those connections for any signs of continuity problems.
Pull your spark plugs and inspect them. What do they look like compared to the illustrations of a good spark plug in the manual?
Have you performed any type of modifications to your bike prior to this issue?
There's a lot of information and a lot of experience to be gained by simply taking the time to inspect the physical items that COULD be causing your running issue.
Report back with your results and questions that you encounter along the way.
Good luck
Chicknstripn
Well-known member
Coming from you, this is absolutely contradictory and incredibly hypocritical, considering the "time" and "cost" you've put into designing some seriously WRONG stuff.
My post was meant to encourage C2H5OH to spend sometime insuring nothing obvious could be causing his issues and to become more familiar with the various systems on the bike.
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