Honda WB20XT2 Manual page 123

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CRANKCASE
CAMSHAFT CAM HEIGHT
Measure the cam height of the camshaft.
WB20XT2:
STANDARD:
IN: 27.600 – 27.800 mm (1.0866 – 1.0945 in)
EX: 27.647 – 27.847 mm (1.0885 – 1.0963 in)
SERVICE LIMIT:
IN: 27.450 mm (1.0807 in)
EX: 27.500 mm (1.0827 in)
WB30XT2:
STANDARD:
IN/EX: 27.603 – 27.703 mm (1.0867 – 1.0907 in)
SERVICE LIMIT:
IN/EX: 27.450 mm (1.0807 in)
If the measurement is less than the service limit,
replace the camshaft (page 13-4).
CAMSHAFT O.D.
Measure the O.D. of the camshaft.
STANDARD: 13.966 – 13.984 mm (0.5498 – 0.5506 in)
SERVICE LIMIT: 13.916 mm (0.5479 in)
If the measurement is less than the service limit,
replace the camshaft (page 13-4).
DECOMPRESSOR WEIGHT
Check for worn and weakened spring.
If the return spring (1) is worn or weakened, replace the
weight return spring.
Check that the decompressor weight moves smoothly.
If the decompressor weight does not move correctly,
replace the camshaft (page 13-4).
13-12
WB20XT2•WB30XT2
(1)