Suzuki RM-Z450 Owner's Service Manual page 106

CAM WEAR
• Measure the cam height H using the micrometer.
• Replace a camshaft if the cams are worn to the service limit.
" Cam height H
Service Limit IN.: 33.27 mm (1.310 in)
EX.: 33.39 mm (1.315 in)
# 09900-20202: Micrometer (25 – 50 mm)
CAMSHAFT JOURNAL WEAR
• Determine whether or not each journal is worn down to the
limit by measuring the oil clearance with the camshaft
installed in place.
• Use the plastigauge to read the clearance at the widest por-
tion, which is specified as follows:
# 09900-22301: Plastigauge
09900-22302: Plastigauge
NOTE:
Install the camshaft journal holders to their original positions.
• Tighten the camshaft journal holder bolts evenly and diago-
nally to the specified torque.
$ Camshaft journal holder bolt:
NOTE:
Do not rotate the camshaft with the plastigauge in place.
• Remove the camshaft journal holders, and read the width of
the compressed plastigauge with envelope scale. This mea-
surement should be taken at the widest part.
" Camshaft journal oil clearance:
Service Limit (IN. & EX.): 0.150 mm (0.0059 in)
10 N·m (1.0 kgf-m, 7.0 Ib-ft)
CYLINDER HEAD, CYLINDER AND PISTON 6-9