ZZW30 SMT stroke sensors
Having failed to find the following information I thought it may be helpful to other people..
The three stroke sensors are all the same (select, shift, clutch) and to check them use a multimeter. Between the outer two pins should read around 10k, between the middle pin and one end around 15k, and to the other end around 5k. Moving the lever at this point should go between 5k and 15k smoothly. OEM part number 894190W020 (supersedes 894190W010).