Honda CB350 Repair Manual page 60

ENGINE AND TRANSMISSION 55
Checking shaft diameter with a micrometer
than ©12.90——mm.>(0:508in.), the—shaft
should be replaced.
3. 360 models: Measure the inside di—
ameter ofthe rocker arm and the outside
diameter of the rocker arm shaft. The dif—
ference between these two values (rocker
arm—to—rocker arm shaft clearance) should
not exceed 0.1 mm (0.0039 in.).
4. Cheek the"inner bore ofthe rocker
Check the rocker arm
cam follower pad for scoring pitting or
signs of wear. Check both the pad and the
bore for heat discoloration. Insert the
rocker arm shaft into the rocker arm and
check for vertical play. Ifanyis evident,
the rocker arm should be replaced. Any
damage indicated by the checks above
necessitate replacement of the rocker
arm.
NOTE: If any discoloration due to
overheating is present, the lubrication
system should be inspected, especially
the oil passages in the cylinder and
head.
5. 360 models: Check the condition
of the valve adjuster locknut and replace
it if the edges are rounded off.
6." Lubricate the rocker arm and shaft
with motor oil before installation.
7. With a vernier caliper or a short
steel rule, measure the. free—length of
both. the—inner and outer. valve springs.
Replace the springs in sets if any of the
inner springs are "Tess
(1.5669«in.) or if any of the 'Outer.springs
are less than 49.0 mm.(1.929 in.).
8. When the valve springs are re—
Rocker arm inner bore must be smooth and fea—
tureless
Gheck the—cam follower .pad—for pitting or discolor—
ation
Check for excessive play of the shaft in the rocker
arm
Measuring valve spring free—length