Suzuki DF 40 Service Manual page 116

STARTER MOTOR RELAY
Two methods can be used to test starter motor relay.
09930-99320 : Digital tester
Method 1
1. Disconnect all cables / lead wires from starter motor relay.
2. Measure resistance between relay wiring leads.
Tester range : W W W W W (Resistance)
Tester probe connection
Red
Yellow / Green
Starter motor relay solenoid coil resistance :
If measurement exceeds specification, replace starter motor
relay.
Method 2
Connect the wiring leads of the relay to battery (12V) and check
relay operation.
Tester range :
1. Disconnect all cables / wires from starter motor relay.
2. Connect Yellow /Green wire to positive
wire to negative terminal of battery.
When 12V applied : Continuity between relay
3. Disconnect wiring leads from battery.
No voltage applied : No continuity between
If out of specification, replace starter motor relay.
Black
Black
(Continuity)
terminal, and Black
terminal and .
relay terminal and
3.5 – 5.1 W W W W W
Y/G
.
ELECTRICAL 4-10
B
Y/G
B
12V Battery