Join Date: Jul 2013
Location: Pisgah Forest, NC, United States
Sounds Like a Misfire
I have an 09 LT with 9k. Saturday filled up with gas and rode highway speeds for 2 hours then I got stuck in traffic for an hour, bailed out and stopped for lunch. Back in traffic for another 40 minutes, fans kicked on but no problems. Bike sat over night and the next morning started and ran fine. We went just up the road for some breakfast and bike ran fine. Left the restaurant and got a hesitation like running on 3 cylinders when starting out but didn't run bad at speed but not right. No overheating or any other signs. Stopped for a 20 minute break and bike started out fine for about 2 minutes and then same thing. Rode home an hour and a half and still better at high speed. Looked at the plugs (stock Bosch) and one looked bad with some bridging to the contact so I figured fouled plug. Installed some cheaper NGK's, (all I could put my hands on) but running no better. Still had a half tank when problem started, I don't think it's fuel related, feels electrical to me, maybe a censer, doesn't seem to matter if it's warmed up or not, have to really give it gas to get going and the sound is different, like a misfire. Any help would be appreciated.
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