HYOSUNG Aquila 250 Service Manual page 71

3-33 ENGINE
◉ CLUTCH DRIVE PLATES
Measure the thickness and claw width of the clutch drive
plates using vernier calipers. If a clutch drive plate is not
within the service limit, replace the clutch plates as a
set.
Clutch drive plate
thickness
Vernier calipers : 09900-20101
Clutch drive plate
claw width
◉ CLUTCH DRIVEN PLATES
Measure each clutch driven plates for distortion using
the thickness gauge. If a clutch driven plate is not within
the service limit, replace the clutch plates as a set.
Clutch driven plate
distortion
Thickness gauge : 09900-20806
◉ CLUTCH SPRING FREE LENGTH
Measure the free length of each clutch spring using
vernier calipers. If any spring is not within the service
limit, replace all of the spring.
Clutch spring
free length
Vernier calipers : 09900-20101
Standard Service limit
2.9~3.1 mm 2.6 mm
Standard Service limit
11.8~12.0 mm 11.0 mm
Service limit
0.1 mm
Service limit
36.2 mm