Help Bike rolls in first gear

[Childishbark30]

Hi I have a 1994 yamaha rt 100 and recently whenever the bike is off it rolls in the first gear as if it is in neutral. I don't know what is causing it but today when riding I tried to shift into third but it put me into neutral.

 

[Okiewan]

Okay so does first gear work when you ride it?
Did it shift to neutral everytime you tried to shift to third or just that once?

 

[Childishbark30]

It did it just that once and yes first gear works when I ride it.
But yesterday it started doing it in 2 gear too so I just started pushing it. Well I heard a click and then it acted like second gear again and the gears were much easier too shift