I had the bike in the shop and Land A one way installed a month ago. I had valves adjusted and had broken air fuel mixture screw was replaced due to being broke bike was overlooked by mechanic. Mechanic said bike ran awesome and it did. Issue is i had it out last weekend riding and ran fine all day. Last thursday i was riding with a buddy and it kept dying and was spittn and sputtering and backfiring. I switched the tank switch to reserve and it ran fine after that. I had it in the on position before that. bike has aftermarket cdi box and k and n filter also has spark plug wire upgrade. Other than that bike is stock but runs like a stripped ass ape. ???