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I once helped a friend at roadside with a similar problem. Turns out his fuel cap was not venting properly, especially after the tank was filled. Periodically removing/reinstalling the fuel cap solved the problem. A new cap solved it.
Well, a HUGE thanks to all for the assists! At the gas station before hitting the hotel and posting, i picked up a bottle of what ever brand fuel injection cleaner addative and put in a third of the bottle (said it would take care of 21 gallons per bottle). After posting and reading the replies, I got up yesterday and pulled the plugs using the plug wrench I brought in my tool kit. Looked like the fuel mixture was where it should be. Next on the list was the fuel lines. My 2001 has two. It would appear that the outer line was allowing air in where the rubber hose is crimped into the metal housing. Using a zip tie, I tied the two lines together causing tension against where I believe the air was getting in. I loaded up the bike, grabbed the warden, and set off for the dealer in Cheyenne. Funny thing happened... the bike ran like a dream and I rode it right on down the highway. In fact, it rode so well, we rode all the way home averaging about 70 the whole way. I added a third of the injector cleaner at the following two fuel stops I google mapped from Cheyenne to Durango and it mapped at 476 miles. Add in the few miles off the exits for fuel and the dozen or so towards the dealer and it was damn close to a 500 mile day. I'll search online for replacement fuel lines, but you guys saved me a fist full of money and lost time at the dealer. Probably another night in a hotel and several miles in. The rain too as it rained like hell all day. So again, thanks for the assist!
So, I think it was either some poor quality fuel or (and more likely) air getting in the fuel line somewhere. A hell of a lot easier to fix at home instead of in another state on the road!!!
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