There is a small rod, right behind the front gear box cover.
You could try to make it longer, half a twist. No more.

Rudely and completely ignoring your original question because it's above my pay grade- I was admiring your photo and noticed the side stand you have fitted. What is it, where did you get it and are you happy with it?

email (option): moatjon [ at ] aol.com

Will give that a try when I get the outer cover of and check things out
Jb

The side stand is off an Enfield Bullet, it was cut and fettled to make it fit, it works for me as I don’t have to haul the bike into the rear stand
When loaded up with camping gear.
I’m sure there is someone on the forum in the process of manufacturing side stands for M20’s
JB