Subaru Robin EX30 - Manual (Page 10)

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4-9 GOVERNOR SYSTEM
This engine is equipped with a centrifugal flyweight
type governor that makes it possible to operate the
engine at a constant speed, even with load variations.
(The governor fl yweights are mounted on a governor
gear.)
GOVERNOR GEAR
4-10 COOLING SYSTEM
The engine uses a forced air-cooling system in which a cooling fan (which also works as a flywheel) forces
cooling air into the cylinder and the cylinder head. Baffl es are provided to guide the fl ow of the cooling air.
4-11 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.
4-12 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.
4-13 IGNITION SYSTEM
The ignition system is a transistor controlled magneto
system with the ignition timing set at 23 degrees
before the top dead center. The magneto consists of
a fl ywheel and ignition coil. The fl ywheel (which also
works as a fan) is directly mounted on the crankshaft
and the ignition coil is directly mounted on the
crankcase.
※ Model EX30 has a smooth advanced ignition timing
system to improve starting performance.
(For further details, refer to page 43, section
"7. MAGNETO")
OIL SPLASHER
TIMING CHAIN
FLYWHEEL
IGNITION COIL