KYMCO VITALITY 50 Manual page 170

11
. CRANKCASE/CRANKSHAFT
CRANKSHAFT INSPECTION
Measure the connecting rod small end I.D.
Service Limit: 13.06 mm replace if over
Measure the connecting rod small end free
play (A).
Out of specification (0.05 ~ 0.4 mm) →
Replace the crankshaft.
Measure the crankshaft run out (B).
Service Limit: 0.10mm replace if over
Measure the connecting rod big end side
clearance (C).
Service Limit: 0.05mm replace if over
Measure the crank width (D).
Out of specification (42.2 ~ 42.15 mm) →
Replace the crankshaft.
Turn the crankshaft bearings and check for
excessive play.
Measure the crankshaft bearing play.
Service Limit:
Axial : 0.20mm replace if over
Radial : 0.05mm replace if over
A
B
C
D
Play
Axial
VITALITY 50
B
Play
Radial
11-12