26-06-17, 11:15 PM
On the FZS600 the problem relates to the shaft being undersize, then add a nut with insufficient threads and a low torque setting, this leads to nut fretting and since the shaft is harder than the nut vibration wears the threads in the nuts.
This results in the nut falling off and if you are really unllucky the sprocket falls onto the threads and flattens the threads exacerbating the problem.
Some shafts were less than 17.5mm thick at the threads with is outside the tolerance level for an M18 fine thread shaft.
This results in the nut falling off and if you are really unllucky the sprocket falls onto the threads and flattens the threads exacerbating the problem.
Some shafts were less than 17.5mm thick at the threads with is outside the tolerance level for an M18 fine thread shaft.