I would start at the handlebar lever and work forwards from there, here are some ideas of what to look for, and check the parts list diagram on the Draganfly website Here
- check the clutch cable is free and isn't trapped or kinked anywhere
- have a look at the rack and pinion lever mechanism on the timing cover. It may be that the adjustment is wrong and that the rack (item no 59 in the diagram) is bottoming on the inner timing cover when the handlebar lever is pulled.
- check the ball bearing which fits between the clutch pushrod and rack (item no 60 in the diagram) is present.
If all of the above are present and working then with the clutch pressure plate removed, ensure the pushrod moves outwards when the handlebar lever is pulled in.
Before refitting the clutch pressure plate check the spring lengths are all the same and the cups all have identical depths. It may be worth buying new springs & cups from a reliable source as often the wrong ones are fitted.
Refit the pressure plate and screw in the adjusters equally until bottomed, check the handlebar lever has some free play, and then unscrew each adjuster so that the clutch fully disengages when the handlebar lever is pulled in. You may need to further adjust the screws, handlebar lever & cable adjustment so that the pressure plate fully disengages and runs true with the handlebar lever pulled in.
That's how I've adjusted the clutches on my B44 and A65 to ensure maximum spring pressure and also full disengagement, just my way of doing it, others may have different thoughts.