Honda Pioneer 1000 2017 Owner's Manual page 106

For safety, we recommend that you start the engine in a well-
ventilated area. If that is not practical, move the vehicle outdoors as
soon as possible. The engine's exhaust contains carbon monoxide, a
colorless and odorless gas that can cause illness and even death.
WARNING
Running the engine of your vehicle while in an
enclosed or even partially enclosed area can cause
a rapid build-up of toxic carbon monoxide gas.
Breathing this colorless, odorless gas can quickly
cause unconsciousness and lead to death.
Only run your vehicle's engine when it is
located in a well ventilated area outdoors.
The starter motor will operate when the shift select lever is in the
park (P) or neutral (N) position, or the brake pedal is pressed.
You should do the following checks and adjustments before you
drive your vehicle.
Before START:
1. Make sure the doors, side nets, tailgate and front hood are
securely closed.
2. Make sure the cargo bed is securely lowered.
3. Check that any items you may be carrying are stored properly or
fastened down securely.
4. Fasten your seat belt. Check that any passenger has fastened
their seat belt as well.
5. When you start the engine, check the indicators in the instrument panel.
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