Thanks Kiwi-Roy, that is exactly what we did. My buddy the electrician helped my install a resistor in place of the sensor, so the bike thinks it's 80 degrees. FIXED IT! Runs great. So the air temperature sensor plays a big part in telling the computer the mixture to use, and at zero resistance, by V11 thought it was 120 degrees outside, and leaned the mixture accordingly. Thanks everyone for all your help. My sanity has returned, and my wife and kidds are happy for that!
Great result. The perplexing thing to me is the symptoms manifested on the one cylinder. Would never have suspected the temperature sensor - or is that how they all work?
No idea, but I know it was backfireing out of the left side because I took the airbox off and could see and hear it. Every time it backfired you could feel it in the throttle grip. Yes, very strange indeed, but thankful it is fixed!
Thank you for all the effort you put into resolving this issue! I had the exact same issue and was hugely relieved both that there was a straightforward and inexpensive solution. I replaced my air sensor today after months of dealing with the back/misfire. The only time it didn't do this was on warmer days. Since I bought it in late fall last year and it's only now spring, there hasn't been many warm days.
03 V11 runs like crap
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Thank you for all the effort you put into resolving this issue! I had the exact same issue and was hugely relieved both that there was a straightforward and inexpensive solution. I replaced my air sensor today after months of dealing with the back/misfire. The only time it didn't do this was on warmer days. Since I bought it in late fall last year and it's only now spring, there hasn't been many warm days.