Honda EU65is Owner's Manual page 71

OPTIONAL KIT PARTS
Remote Control Kit
Using the remote control in wet conditions, such as rain or snow, or
near a pool or sprinkler system, or when your hands are wet, could
result in malfunction. Keep the remote control dry.
(degree of protection: IP3X)
1.Remove the battery maintenance cover (see page 50).
2.Remove the plug from the 6-pin connector.
6-PIN
CONNECTOR
3.View the back of the battery maintenance cover and locate the
knockout near the top center of the cover. Carefully remove the
knockout.
KNOCKOUT
BATTERY MAINTENANCE COVER
PLUG
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