Refer to “engine top side disassembly” .
Refer to “engine top side assembly” .
Cylinder distortion
Check the gasket surface of the cylinder for distortion.
Use a straightedge and thickness gauge. Take clearance readings at several places. If any reading exceeds the service limit, replace the crankcase set.
Special tool : 09900–20803 (thickness gauge)
Cylinder distortion service limit: 0.02 Mm (0.0008 In)

Cylinder bore
Measure the cylinder bore diameter at six places. If any one of the measurements exceed the limit, overhaul the cylinder and replace the piston with an oversize piston.
The remaining cylinders must also be rebored accordingly; otherwise, the imbalance might cause excessive vibration.
Special tool (a): 09900–20530 (cylinder gauge set)
Cylinder bore standard: 74.500 – 74.515 Mm (2.9331 – 2.9337 In)


Piston-to-cylinder clearance
Refer to “piston and piston ring inspection” (page 1d- 71).
Engine bottom side assembly
Piston ring removal and installationLight bulb replacement
The wattage rating of each bulb is
shown in the following chart.
When replacing a burned-out
bulb, always use the same wattage
rating according to the following
chart.
Caution
Using a light bulb with the
wrong wattage rating can
cause electrical system damage
or shorte ...
Engine coolant solution
Use engine coolant that is com·
patible with an aluminum radiator,
mixed with distilled water at a
50:50 mixture ratio for engine
coolant solution. An engine coolant
mixture other than 50:50 can
affect cooling efficiency or rust
inhibiting performance.
Engine coolant
Engine coolant should b ...
Right handlebar
Engine stop switch 1
"" Position
The ignition circuit is off. The
engine cannot start or run.
"" Position
The ignition circuit is on and the
engine can run.
Front brake lever 2
Apply the front brake by squeezing
the front brake lever towards
the grip. The brake ligh ...