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8
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4-14 CARBURETOR
The engine is equipped with two types of horizontal
draft carburetors, one has a float controlled fuel system
and a fixed main jet, and another is diaphragm type
The carburetors are calibrated carefully for sure
starting, good acceleration, less fuel consumption and
maximum output
For details, refer to page 50, section “11-3 FLOAT
CARBURETOR As details of diaphragm type, refer to
page 53, section “11-4 DIAPHRAGM CARBURETOR”
FLOAT TYPE DIAPHRAGM TYPE
4-12 TIMING BELT
Timing belt system is adopted and designed for
lubricating for the upper portion of cylinder head
The timing belt is engaged between the campulley in
the cylinder head and the crankshaft gear
The pulley and the gear teeth in round shape are
adopted to
enhance the durability and to realize low
noise level
4-13 IGNITION SYSTEM
The ignition system is a pointless flywheel magnet by
a digital control
The magneto consists of a flywheel and ignition coil
with CPU (Central Processing Unit) and CDI
(Capacitor Discharge Ignition) The flywheel is
directly mounted on the crankshaft and the ignition
coil is directly mounted on the crankcase
TIMING BELT
CAMPULLEY
CRANKSHAFT
DRIVEPULLEY
IGNITION COIL
FLYWHEEL
FAN
THICKNESS
GAUGE
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