hey guys im trading my 96 yamaha wr 250 for a 99 yz400f my wr is a woods machine (flywheel weight, skid plate, enduro engineering hand guards, headlight, fmf gnarly,powercore 2,etc) the 400f is all stock kid says it needs a carb clean up clutch cable and rear tube i got feeling im gonna end up puttin alot into it but ive always wanted one anyways i wanted to ask a few questions,, 1.whats best cheap mods? ive heard about the cam mod for the hot start and the 450 plastic mod any others? 2.should i buy the stealthy complete flywheel weight or the bolt on weight? 3. the kid has a wr pipe on it i wana eliminate that and get a decent slip on whats best one for the bike? 4. im all new to 4 smokes what else should i add to make it a woods machine? i dont wana mellow it out too much becuase where i ride and race has long field sections as well as single track. any answers will help thanks everybody!