Cylinder Head Cover - Suzuki GZ250 Service Manual

ENGINE
3-23

CYLINDER HEAD COVER

CAUTION
Identify the position of each removed part. Organize
the parts in their re spective groups (i.e., intake or
exhaust) so that they can be installed in their original
locations.
DISASSEMBLY
• Remove the rocker arm shaft bolts
• Remove the rocker arm shafts
• Remove the rocker arms
CYLINDER HEAD COV ER DISTORTION
After removing the sealant (S UZUK I B OND "1215") from the
mating surface of the cylinder head cover, place the cylinder
head cover on a surface plate and check for distor tion with a
thickness gauge. Check points are shown in Fig.
09900-20803: Thickne ss gauge
Service Limit: 0.05 mm (0.002 in)
If the distortion exceeds the limit, replace the cylinder head
cover.
ROCKER ARM SHAFT O.D.
Measure the diameter of the rocker arm shafts.
09900-20205: Micrometer (0-25 mm)
Standard (IN. & EX.):
11.966-11.984 mm (0.4711-0.4718 in)
ROCKER ARM I.D.
Measure the inside diameter of the rocker arm and check the
wear of the camshaft contacting surface.
09900-20605: Dial calipers
Standard (IN. & EX.):
12.000-12.018 mm (0.4724-0.4731 in)
and wave washers