1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 344Get this manual
LIGHTSSWITCHES
NEUTRAL SWITCHREVERSE SWITCH
INSPECTIONREMOVAL
Remove the seat and disconnect the 3P connectorThe neutral switch is functional if continuity exists between the Lg wire terminal of the switch side and body ground only when the transmission is in neutralThe reverse switch is functional if continuity exists between the Gr wire terminal of the switch side and body ground only when the transmission is in reverse position
If there is no continuity as described, remove the switch cover and check the neutralreverse switch wire connector for loose connection or corroded terminalsDisconnect the connector and also check the neutral or reverse switches for continuity between each switch terminal and body ground (howto check: see above)
INSTALLATION
Connect the switch connector according to the letter (on the connector), "N" to neutral switch and "R" to reverse switch