I bought a 2009 big bear 400. Thumb throttle is broken. It is all together with four wheel drive switch and locker. All I need is the thumb piece. Where can I find it to order it. I done a lot of searching and I can find this part. Also when riding the reverse light blinks on and off like a turn signal. Any help,would be great. This is my first time posting so I hope I done it right . Thank you.

 

Any Yamaha dealer can sell you the thumb throttle part, you don't have to buy the whole thing. The reversing light fault may be a wire shorting out or a faulty gearchange switch. If you can find it, disconnect the switch and see if the fault goes away.