engine builds

I just did my first top end rebuild along with changing out a timing chain and a spark plug. I saw 2 or 3 different people post different torque specs for the bolts inside of the engine and now I'm concerned that it will not run properly. I found a owners manual that seems to have all the right...

I'm starting from scratch on an engine build. I'm trying to figure out if I could just buy a complete engine rebuild (wrench rabbit rebuild kit (with piston and seals for engine case)) for a 2012 crf450r and put it in a brand-new crankcase. Again, starting from scratch meaning buying everything...