Bennche Bighorn 400 Owner's Manual page 72

1. Open the seat. (See pages 4-18).
2. Remove the battery compartment cover.
3. Using a charged 12V battery, connect
the positive lead of the jumper cable to
the positive terminal of the battery in the
vehicle and the other end of the positive
lead to the positive terminal of the
charged battery.
1. Jumper cable positive lead
2. Jumper cable negative lead
4. Connect the negative lead of the jumper
cable to the negative terminal of the
charged battery and the other end of the
negative lead to an unpainted metal
surface of the vehicle.
NOTE:
Do not connect the negative lead of the
jumper cable to the negative terminal of the
battery in the vehicle.
Be especially careful not to:
● touch the positive lead of the jumper
cable to the negative lead.
● reverse the polarity of the jumper cables
when connecting to the batteries-battery
explosion and/or serious damage to the
electrical system may occur.
5. Start the engine.（Refer to "Starting a
cold engine" on pages 6-1-6-2）
6. After the engine starts, disconnect the
negative lead of the jumper cable from
Operation 6-3