Chapter IV Disassembly & Repair
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4-5-6 Control panel parts
a. Disassembly/assembly
Combination switch
When the combination switch is at corresponding
positions, check the state of ignition circuit, fuel switch
and choke-valve switch.
When the combination switch is “OFF”, ignition
circuit is under the off status, that is to say, the two
output terminals of microswitch are conductive and the
ignition wire is grounded; when the oil switch is off, the
engine cannot operate.
When the combination switch is “ON”, ignition
circuit is under the working status, that is to say, the two
output terminals of microswitch are disconnected; the oil
switch is on; choke valve is under the fully open state, the
engine can operate normally.
When the combination switch is “CHOKE”, the
ignition circuit is under the working status, that is to say,
the two output terminals of microswitch are
disconnected; the oil switch is on; the choke valve is
under the closed status;
When the switch is at corresponding position,
check the conductivity of switch terminal.
Frequency-changeover
switch
Electrical starting switch
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