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2-11 TIMING CHAIN
Timing chain system is adopted and designed for
lubricating for the upper portion of cylinder head .
The timing chain is engaged between the sprocket
portion of integrated camshaft in the cylinder head and
the crankshaft gear sprocket .
The sprocket teeth in particular shape are adopted to
enhance the durability and to realize low noise level .
Fig .2-9
2-10 LUBRICATION SYSTEM
The rotating parts, sliding parts and valves of the engine are lubricated with oil in the crankcase .
The oil is splashed onto the parts by the oil splasher on the connecting rod .
2-9 COOLING SYSTEM
The engine uses a forced air-cooling system in which a synthetic resin cooling fan (which is separate from the
flywheel), reduce noise and forces cooling air into the cylinder and cylinder head .
Baffles are provided to guide the flow of cooling air .
TIMING CHAIN
OIL SPLASHER
2-8 CYLINDER HEAD
The cylinder head is on aluminum die-casting with a
dome-shaped combustion chamber . The intake and
exhaust ports are arranged in a cross direction to
improve combustion efficiency .
Fig .2-8
