JBird227,

Don't blame your sister, its probaly not her fault. Ask her though if she used the parking brake. From what you describe, I am 90% sure its the parking brake REV limiter switch. This little switch is very problematic.
I have attached a link you can reference to see what it looks like:

http://216.37.204.202/yamaha_oem/Yam...=13&A=205&B=39

Part #23 is it. The other switch is the nuetral saftey switch. The switch may be getting activated by a lose parking brake, so try tighting up the parking brake cable first (near clutch handle) before removing and cleaning the switch.

Good luck.

 

The parking break has never worked, But when i looked at it yesterday, the place where it connects to the handle was very loose. But i am about to have to go to work, so I will check it out when I get home, thanks!!