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 installationSteering / steering damper related parts
inspection
Refer to “steering / steering damper removal and installation” .
Inspect the removed parts for the following
abnormalities:
Steering stem
Distortion of the steering stem and brackets.
Bearing
Bearing wear or damage
abnormal bearing noise
race wear or damage
&nbs ...
Engine components removable with the
engine in place
Engine components which can be removed while the engine is installed on the
frame are as follows. For the installing
and removing procedures, refer to respective paragraphs describing each
component.
Center of engine
Item
Removal
Inspection
Installation
...
Drive chain related components
Drive chain
Engine sprocket
Rear sprocket
Dust seal
Bearing
Retainer
Sprocket mounting drum
Wheel damper
145 N·m (14.5 Kgf-m,
105.0 Lbf-ft)
60 N·m
(6.0 Kgf-m, 43.0 Lbf-ft)
Apply grease
Apply thread lock to
thread p ...