Hey folks, I wish I could change my username, sold the V-Strom and bought a CBR954RR.
In any case, here's the problem:
My wife owns a 2002 Bandit 600, which has low miles, and is in excellent condition. Last summer I balanced the carbs and shimmed the needles as per this site. The engine runs great.
Twice now, my wife has been stranded on the side of the road after "losing power" suddenly during a ride. About 30 minutes into a ride, the bike starts to lose power as though it is running out of gas. She has to pull over, and when she pulls in the clutch, the engine dies.
The first time it happened I suspected vapor lock in the tank, as it took about ten minutes for the bike to re-start then it ran fine for weeks afterward. I told her if it happened again to pull over and pop the filler cap, listening for a "swoosh".
It happened again today, she did as I recommended and she heard nothing. Even after opening the filler cap and re-closing it, the bike would not re-fire for 10 minutes. Once it did start, she had no further trouble on her 30km ride home.
Both times it has happened she has had 2 bars on the electronic gauge, and she could see fuel in the tank. Turning the selector to prime or reserve did not help.
Any advice?