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3.4 Starter relay
3.4.1 Check
Remove the body guard.
When the main switch is “on”, check there is “click” sound
at the time of pressing the startup motor.
With click sound, it is normal.
Without click sound: • check voltage of the starter relay;
• check the GND loop of the starter relay;
• check the movement of the starter relay.
3.4.2 Check voltage of the starter relay
Set up the main stand, and measure voltage between the
negative pole of the green/yellow wire of the starter relay
（启动继电器：
starter relay
）
terminal and the body ground connection.
When the main switch is “on”, hold the brake lever. The
battery voltage shall comply with regulations.
When there is no voltage at the starter relay terminal, check
the conduction of the brake switch and leads.
3.4.3 Check GND loop of the starter relay
Remove the starter relay connector.
Check conduction between the black wire of the lead
terminal and the body ground connection.
When the startup button is pressed, it shall show good
conduction between the black wire of the terminal and the
body ground connection.
Check conduction of the startup button and leads when it is
not conducted.
(
绿黄
/
线：
green/yellow wire)
3.4.4 Check
Connect the starter relay to the battery, and the terminal of
the startup motor to the multimeter.
Connect the fully charged battery between the black wire
and the green/yellow wire of the relay. The relay shall sound
“click” and the multimeter shall indicate resistance of
“zero”.
