Ok, my raptor(02) has roughly 150-200 hrs on it and im getting a lot of smoke on start up, and Im also noticing that im using quite a bit of oil.(after my 20 hrs its down to the E on dipstick). Ive decided that I want to fix this prob but also maybe do a bit more while im in there. What do I have to change to stop this leaking?(valve seals, seats etc etc). Im going to be going w a ross 11:1 piston,stock bore. Also I am thinking about a cam but I cant decide whether to go with the stage 1 or stage 2 hotcam. I do all types of riding (ice racing on an oval, trail riding, pit riding, track riding..jus about everything)..Another thing ive heard alot about is the stock rod..should this be replaced as well? Any inputs on which setup would be best for me are greatly appreciated. Thanks alot. If I do any port work to the head it wont be for a few yrs, maybe never

 

I wouldnt go with a stock bore if you have lots of time on it. Just go with a 101mm bore. By going with an 11:1 I wouldnt worry much about the rod, just make sure you use 91+octane and it doesnt ping. I went with a stock bore wiseco but I didnt have lots of hours into the engine so the clearances were still good.