I'm having to make one of the rods for the hand throttle and trying to get the geometry right. How far does the lever open the throttle? I am assuming that the throttle is closed when the lever is to the left of center and opens as you move it to the right. I have the motor back together and am tying up the loose ends while waiting for parts to finish it up and get it running.
No help here? Surely someone has a working hand throttle and can give me a description of how far it opens the carburetor and what position the lever is at idle. With the pieces I have I can make the linkage so the lever is straight up at idle and to the left wouldn't do anything or all the way to the left at idle and it would open the throttle a lot further. I haven't figured out a way for the lever to give it full throttle if that's what its supposed to do.
This probably seems like a silly question but having never seen another one of these cars in person and every picture seems to be different makes for some silly questions. When I started piecing the column together all I started with was a empty column with a old plastic steering wheel.
The way mine works you can clamp the rod in any position to have off or full on . In only moves from about 10 t0 12 o'clock for throttle range .
Tom is right. At the 12:00 o'clock position no effect on acceleration.
See attached picture which shows the linkage and its motion. Arrows show direction.
throttle-motion-01.jpg
Set up everything in the 12 o'clock position and you are done.
Thanks! that's how I will rig it up.