Honda GX690 Workshop Manual page 136

CRANKCASE
CAMSHAFT O.D.
Measure the camshaft O.D. of the camshaft.
STANDARD:
SERVICE LIMIT:
If the measurement is less than the service limit,
replace the camshaft (page 15-5).
DECOMPRESSOR WEIGHT
Check for worn and weakened weight return spring (1).
If the spring is worn or weakened, replace the weight
return spring.
Check that the decompressor weight (2) moves
smoothly.
If the decompressor weight does not move correctly,
replace the camshaft (page 15-5).
VALVE LIFTER I.D.
Measure the valve lifter I.D.
STANDARD:
SERVICE LIMIT:
If the measurement is more than the service limit,
replace the valve lifter (page 15-8).
VALVE LIFTER SHAFT O.D.
Measure the valve lifter shaft O.D.
STANDARD:
SERVICE LIMIT:
If the measurement is less than the service limit,
replace the valve lifter shaft (page 15-8).
15-12
16.982 – 17.000 mm
(0.6686 – 0.6693 in)
17.100 mm (0.6732 in)
6.010 – 6.040 mm
(0.2366 – 0.2378 in)
6.070 mm (0.2390 in)
5.970 – 6.000 mm
(0.2350 – 0.2362 in)
5.940 mm (0.2339 in)
(2)
(1)