Part IV Wiring Diagram
29
Exhaust valve side: knock the exhaust valve guide
until the retainer ring fully contacts the cylinder cover
(as shown in the figure).
Intake valve side: knock the intake valve guide to the
specified height (measured from the top of the valve
guide to the surface of the cylinder cover) (as shown
in the figure).
d) After installation, check whether the valve guide is
damaged, and replace it if it is damaged.
Reamer:
When reaming preciously valve guide with a reamer,
be sure to be at room temperature to get good result.
a) Apply a layer of cutting grease to the valve reamer
and the valve guide.
Screw into the reamer clockwise until the reamer is
fully screwed into the air valve guide pipe.
Continue to rotate clockwise to pull out the valve
reamer from the valve guide.
Tool: valve guide reamer
b) Thoroughly remove dirt and debris from cylinder
cover.
c) Inspect the hole of valve guide pipe, which shall be
in the center of valve guide pipe and shall be straight
and unobstructed, and insert the valve to inspect
whether the action is smooth. If not, the valve guide
may have been bent during assembly. If it is bent or
damaged, replace the valve.
d) Check the clearance between the valve stem and
the guide.
e) Clearance between the valve stem and the valve
Correct
Wrong
0.8 mm
Valve guide
reamer
The valve guide
installation
height is 1mm.
Valve guide
retainer ring
Valve guide puller
