I just read the acerbis tank topic and received some very useful information. The only petcock I have on my IMS is on the right side. I put on a beefier fuel line and routed it up around the front, just behind the steering stem and back to the carb because the only nipple on the petcock is on the right side and I didn't want to kink it by going straight to the carb from there. Anyway, I just rode with it for the first time and it did fine except for one spell where, for about five minutes, I would start it and it would not run. Over and over it would start right up but die before I could even get the kick start folded away. Sounds like a fuel delivery problem to me. Any suggestions???