Honda TRX450R Service Manual page 505

LIGHTS/SWITCHES (After '05)
NEUTRAL SWITCHES (TRX450ER only)
INSPECTION
Remove the bolt and gearshift pedal.
Disconnect neutral switch connector.
Check for continuity between the switch terminal
and engine ground.
Check for continuity between the switch terminal
and engine ground.
There should be continuity when the transmission
is in neutral, and no continuity when the transmis-
sion is in any gear except neutral.
Install the removed parts as described below.
REPLACEMENT
Disconnect the neutral switch connector
(page 24-10).
Remove the switch from the crankcase.
Install the switch with a new sealing washer and
tighten it.
TORQUE: 12 N m (1.2 kgf m, 9 Ibf-ft)
Connect each switch connector.
SWITCHES AND WASHER
24-10