HYOSUNG WOW90 Service Manual page 46

CAUTION
Do not apply full power for more than 3 seconds or
damage to the clutch or engine may occur.
Clutch tight RPM
Engine tachometer : 09900-26006
If the engine RPM does not coincide with the specified
RPM range, then disassemble the clutch.
Clutch shoe - inspect the shoes visually for chips,
cracking, uneven wear and 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 springs for
stretched coils or broken coils.
Clutch shoe thickness
CAUTION
Clutch shoes or springs must be changed as a set
and never individually.
Clutch housing - inspect visually the condition of the inner
clutch housing surface for scrolling, cracks, or uneven
wear. Measure inside diameter at several points to check
for an out-of-round condition as well as wear.
Clutch housing I.D.
Standard 5,900 rpm
±200 rpm
Tolerance
Service limit
2.0 mm (0.079 in)
Service limit
112.50 mm (4.429 in)
ENGINE 3-18