Well done Large. I may try that mod someday.
On the subject of a choke,
As my motor was not running real well I'd have to constantly choke adjust whilst riding one handed. Then the choke adjust started going loose.
I have given thought to changing the choke to a handle-bar version.
I've even got a spare set of gears ready for the task.
Just a matter of working out the way it wants to work....hmm....
(sounds of ticking wheels in my head)
However, I did make myself a choke adjuster using a vernier caliper that raised the choke
just under the cross bar, so that I could hold the cross bar between my legs
with my thumb and palm and with two fingers adjust the choke.
If you check this vid, it shows a picture of it.
The caliper cost me $3 from a shop in Australia
called The Warehouse.
http://www.youtube.com/watch?v=_CqUZ0EtGiA
I'm now thinking of ways to connect a standard bike gear changer
to the caliper setup.
CYA
Will Start.