fix

hey guys I recently got a suzuki drz 125 and every time I start it it starts redlining in neutral and goes very fast in gear without any throttle. I checked the cabling and it looks fine so I don’t know what to do. Any ideas?

Okay, so I recently received a 1992 suzuki rm 125 for free. It was thought to be a lost cause since it was chained to a tree for 20+ years, maybe more. (Not to sure how long all I know is that the tree grew into the bike and around the chain) but anyways I took it apart and fixed it up and it...