Fire selector problem

[Cannonfodder]

So I took my Specna Arms SA CO2 out the other day to fire off a few shots and discovered a problem. It's stuck in semi auto no matter what position I put the fire selector in.

 

I'm guessing it's the selector plate on the outside of the gearbox which is knackered, but if anyone knows more or has other ideas I'm all ears 

 

Thanks in advance 

[Galvatron]

I'm no V2 expert but a semi only function does sound like the selector plate or something mechanical there has given way and I have seen something similar on a V3. I would usually expect an electrical fault to run full auto only or not at all.

[Cannonfodder]

That's good to hear (or read) as I really want to avoid opening up the gearbox if I can 

[MSSNAFU]

My 1st thought would be the selector plate or the selector cam too - Plate not moving far enough back to lift the disconnect lever. 

Edited Saturday at 07:54 by MSSNAFU