B .CLUTCH”LOCK-UP”INSPECTION
Perform this inspection to determine if the clutch is engaging
fully and not slipping.
●
Warm the engine to normal operating temperatures.
●
Connect an electric tachometer to the engine.
●
Apply the rear brake as firm as possible.
●
Briefly open the throttle fully and note the maximum
engine RPMs sustained during the test cycle.
Caution :Do not apply full power for more than 10 seconds or damage to the clutch or engine may
occur.
LOCK-UP R/MIN
STD
5500r/min
Tolerance
±
200r/min
If the engine r/min does not coincide with the specified r/min
range,then disassemble the clutch.
●
Clutch shoe-inspect the shoes visually for chips,cracking,
uneven wear,burning and check the thickness of the shoes
with vernier calipers.if the thickness is less than the
following service limit,replace them as a set.
●
Clutch springs-visually inspect the clutch spring for
tretched coils or broken coils.measure the free length of
the springs with vernier calipers.
Note :Clutch shoes or springs must be changed as a set and
never individually.
●
Clutch wheel-inspect visually the condition of the inner
clutch wheel surface for scoring, cracks,or uneven wear.
measure inside diameter of the clutch wheel with inside
calipers.measure the diameter at several points to check
for an out-of-round condition as well as well as normal wear.
Item
Service limit
Clutch wheel I. D.
100.50
Clutch shoe thickness
2.5
Clutch spring free length
34.2
DRIVE BELT
Remove the drive belt and check for cracks,wear and
separation.measure the drive belt width with vernier
calipers.replace it if the belt width is less than the service
limit or any defect has been found.
Service limit
15.5mm
Caution :Always keep the drive belt away from any greasy matter.
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