I thought I'd bump this thread up again because I've been thinking.
Follow along:
The clutch drags. It doesn't seem to want to disengage fully. (This is a common problem on dirt bikes to a degree right?)
If it doesn't like to disengage fully, that means that you need more action on the lever at the engine.
If you lengthen the arm at the engine, you'll have more leverage for a lighter pull. But as a result, you'll have less action in the throw.
If you want to get more throw/action to promote full clutch disengagement, you'd actually want to
shorten the lever at the engine. Wouldn't you?