Yamaha 2012 Grizzly 300 Service Manual page 281

EBS01054
4. Starter relay
• Disconnect the starter relay coupler from
the coupler.
• Connect the pocket tester ( Ω× 1) and bat-
tery (12 V) to the starter relay coupler as
shown.
Positive battery terminal
Negative battery terminal
Positive tester probe
Negative tester probe
3
R
B
4
• Does the starter relay have continuity
between red and black?
YES
EBS01041
5. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
ELECTRIC STARTING SYSTEM
→
white/black
1
→
yellow/red
2
→
red
3
→
red
4
1
W/B
Y/R
2
NO
Replace the starter
relay.
NO
Replace the main
switch.
9-14
EBS01046
6. Rear brake switch
• Check the rear brake switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the rear brake switch OK?
YES
EBS01057
7. Start switch
• Check the start switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the start switch OK?
YES
EBS01042
8. Engine stop switch
• Check the engine stop switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the engine stop switch OK?
YES
EBS01059
9.Wiring
• Check the entire starting system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the starting system's wiring properly
connected and without defects?
YES
The starting system
circuit is OK.
ELEC
– +
NO
Replace the rear
brake switch.
NO
Replace the handle-
bar switch.
NO
Replace the handle-
bar switch.
NO
Properly connect or
repair the starting
system's wiring.