kfx700 trouble help

I just got this bike from a kid that thought the fuel pump was bad. It wasn't the fuel pump. Got the bike working...except it has a REALLY LOUD clanking noise coming from the front cylinder/ head area. I called a mechanic from this area and he gave me BAD news. He thinks its the rod and that the...

i dont really know whats wrong with it i just got it and it ran great for the first day i got it off of this guy i traded my banshee for it to and then when i got it home i turned it on in neutral and when i went to put it in drive it started grinding threw the gears and it does the same when i...