Key thing to know here is this: There is no such thing as a "clutch adjustment". All adjustments are to the mechanism that disengages the clutch, or the "clutch action". The goal should be to adjust the "clutch action" to the spot where you have the most control. That is, when lever is let out the clutch is fully engaged and when your have the lever pulled in, the clutch is disengaged enough to easily shift. It is a balancing act. In the case of the clutch cable on the 919 or really any vehicle with a cabled actuated clutch, the adjuster at the top, that's the one by the lever, and the adjuster down below, that's the one above the clutch cover, do exactly the same thing. They adjust the slack of the cable by reducing or lengthening the distance between the ends of the cable and the cable housing. This can only adjust the "clutch action"... you CAN NOT adjust the "clutch" itself. Best practice is to set the adjuster at the lever to it's minimum, that's adjusted all the way in or only a turn or two from this, then use the lower adjuster to get the lever free-play and the clutch actuator arm free-play as close to specs or preference as possible. Then use the thumb adjuster to fine tune the clutch action from there and whenever you want to fine tune it. You can assume that the higher in the "clutch action" you have to raise or let out the lever before it grabs, the more worn your clutch is. If your clutch grabs too soon as you let out the lever or shifts are hard to make unless RPMs are in the exact sweet spots and timed absolutely perfect, then you need to adjust the "clutch action" higher or tighter. BTW, nothing wrong with getting your shifts in the sweet spots anyway, but being forced to do this because your clutch action is a soggy noodle blows! On the flip side, you don't want the cable so tight that the clutch always has tension on it. This can cause at the very least clutch slippage and lots of other bits to wear prematurely. Don't be surprised if your clutch feels different from day to day or from minute to minute as you ride. Heat can change the way the action feels constantly so don't be afraid to adjust it any damn time you want. That's why there is a big shinny thumb wheel right there by the lever.
- Rev. CYCHO -
tires.... it's what's for dinner!