User Manual - Page 186

For 2012 TRX450R.

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SYMPTOM:
POSSIBLE CAUSE
ignition switch OFF
WHAT TO DO
Turn the ignition switch ON.
out of fuel
flooded engine
Fill the fuel tank.
See (page ).
transmission not in
neutral
Shift into neutral.
blown fuse Replace with a new fuse of the
same rating (page ).
battery lead loose Tighten the battery lead.
Charge the battery (page ).
If charging doesn’t help, see your
dealer.
faulty starter motor If all possible causes are negative,
the starter motor may be faulty. See
your dealer.
SYMPTOM:
POSSIBLE CAUSE WHAT TO DO
engine stop switch
OFF
Turn the engine stop switch to RUN.
low (or dead) battery
weak battery
loose battery cables
Charge the battery (page ). If
charging doesn’t help, see your
dealer.
Tighten the battery terminal bolts.
loose or
unconnected spark
plug cap
Install the spark plug cap securely. If
the engine still won’t start, see your
dealer.
not enough throttle
freeplay
Check the throttle freeplay
(page ).
187
158
50
110
158
Starter motor doesn’t operate.
Starter motor works, but the engine won’t
start.
Flooded Engine
179
If Your Engine Quits or Won’t Start
Taking Care of the Unexpected
11/05/25 11:43:39 31HP1660 0188 
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