Vespa PK50 XL Push and Pull gears (rod not cable)

[caverncity]

Hello,
I have a PK50 that has the uncommon push and pull gear system. Basically it comprises of a long solid rod (not cable) from the handle bar selector to gear box. I believe it was used mainly in Italy.
Only one rod, so no real adjustment, my question is are they normally hap-hazard gears when selecting. Never had one like it before and didnt realise it had it, until I checked for adjustment so unsure on how easy the gear change is.
At the moment its not bad but not good, sometimes it seems to get lost when changing to 3rd and 4th, you do have to listen to the box engaging so as you know its in gear.

ta

[Smallframe]

I've heard of these, you may be better getting a new wishbone ( selector arm) its fitted with a tapered pin onto the selector shaft. Its seems like a bad one off design that harks back to vespa rod days.

[caverncity]

cheers for that