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 installationStarter clutch inspection
Refer to “starter clutch removal and installation” .
Starter clutch
Install the starter driven gear onto the starter clutch.
Turn the starter driven gear by hand to inspect the
starter clutch for a smooth movement. The gear
turns in one direction only. If a large resistance is felt
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Fuel and oil recommendation
Fuel (for USA and Canada)
Use only unleaded gasoline of at least 90 pump octane
(r/2 + m/2).
Gasoline containing mtbe (meltyl tertiary butyl ether),
less than 10% ethanol, or less than 5% methanol with
appropriate cosolvents and corrosion inhibitor is
permissible.
Fuel (for other countries) ...
Front brake master cylinder assembly removal and installation
Removal
Drain brake fluid. Refer to “brake fluid replacement” .
Disconnect the front brake light switch coupler (1).
Place a rag underneath the brake hose union bolt (2)
on the master cylinder to catch any spilt brake fluid.
Remove the brake hose union bolt (2).
...