I recently bought a 400ex non running. I got her running, but she smokes a lot hot or cold. I’m about to take it apart, but I’m wondering what I should purchase and replace while I’m inside the engine. I’m also wondering what brand piston I should go with. I want stock bore and have heard good things about wiseco, is that what I should go with. If the cylinder is too big to be used, what cylinder would you recommend buying. I’d rather keep this on the lower budget and have the engine as stock as possible. Thanks!