Anyone know why zzr600 keeps jumping out from 2nd gear all other gears work perfect but 2nd is a absolute no go ???                                                                                                                                                                             

Any advice would be very much appreciated. Thinking maybe shifting star or drum or folks. From other forums getting impression this is common in the zzr🤦🏻‍♂️                                                                                                                                                                             

I`ve read somewhere that it`s common too. May be down to bent or worn selector fork. Is this something that`s just occured or progressively got worse? Or have you only recently got the bike & found this problem?                                                                                                                                                                             

Bike came with problem but I have 2 and other 1 is starting to go same 2                                                                                                                                                                             

This is about 17 years ago so I can't remember the details accurately, can't even remember what model it was TBH, but it was a ZZR 600.
Have you got a manual with a gearbox drawing?

Had one in my workshop with exactly the same fault, obviously I was checking everything as it came apart but IMO the most likely was a bent selector and/or rounded gear dogs.

All checked out OK BUT there were 3 ball bearings inside one of (Probably.) the cogs I think.
It looked like their only purpose was making neutral easier to find and if they "Stuck" in a position that prevented the 'box going into 2nd............

Took a gamble and left them out on reassembly. No more problems! 😊

If you've got a drawing put it on your profile and I'm sure I'll remember when I see it.