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 installationEngine 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 ...
Drive mode selector description
Engine power characteristics can be changed in 3
modes by operating the drive mode selector to meet
various riding conditions and rider’s preference.
Operation
Drive mode is preset at a-mode when the ignition switch
and engine stop switch are turned on. Follow the
procedure below to operat ...
Pillion footrest construction
Pillion footrest
Spring
Ball
E-ring
Washer
O-ring
Footrest pin
Apply grease.
Do not reuse.
...