4th gear issues

[Canister]

I've been having some issued with my 2011 rocket 3 roadster. It will kick me out of 4th when I am getting on it and banging through the gears, but if I shift and let it sit for 1 or 2 seconds before giving it power, it is perfectly fine. Also there is only an issue going from 3rd to 4th and there isn't an issue with any other gears. Would this be a synchro issue? And is there any way to fix it without a transmission rebuild?

 

[Tripps]

Hmm, sounds like detent spring ( best case) or circlip came out ( worst case)

 

[Canister]

Hmm, sounds like detent spring ( best case) or circlip came out ( worst case)

How can I find out which one?

 

[wjb]

When my detent spring broke my bike would jump out of almost any gear, not just one.

 

[Tripps]

I think wjb is right, probably wouldn't be just one gear. When my circlip came out, I believe it started skipping teeth in 4th or 5th, but I don't remember it popping out of gear, so idk. Hopefully someone with more mechanical knowledge will chime in, I'm no wrench