This image was recently provided by Mick Broom.
It is not clear whether the mods were ever deployed to production or whether they were just on Mick's prototype bike.
Added timing cover drawing for reference.
That's good to know. It would have been interesting to understand whether the gear change improvements had worked on Mick's Vampire if it had survived.
Mick's modified gear select mech didn'y carry forward.
Here's a comparison; fire damaged unique modified mech with standard production mech.
So, what's going on?
Could this be an easy mod to implement?
What would be the benefit?
It looks like Mick's proposed linkage he was testing would have been more direct and positive.