Does the fuel in the reserve tank recycle into the regular tank. If not I found my problem with the start and idling issue. That fuel if not recycled was the culprit because I put the tank switch on and had it on reserve so that fuel, if not recycled when filling each time was the fuel I had in the bike since I purchased. It would be the dealer fuel since I use non ethanol . The fuel in the carb was rusty and stunk.