Honda NSS300 Forza - Owner's Manual > Keys

Instruments, Controls, & Other Features

Ignition key

Except U, KO type

The ignition key contains a special coded chip that is recognized by the immobilizer system (HISS) in order to start the engine. Handle the key carefully to prevent damaging the HISS components.

If you lose all keys and the key number plate, the PGM-FI unit/ignition control module must be replaced by your dealer. To avoid this, keep a duplicate key.

If you lose a key, make another duplicate key immediately.

To make a duplicate key and register it with your HISS system, take the spare key, the key number plate, and the scooter to your dealer.

U, KO type

Be sure to record the key number provided with the key number plate and record it in this manual.

Store the key number plate in a safe location.

To make a duplicate, take the spare key or the key number plate to your dealer.

If you lose all keys and the key number plate, the ignition switch assembly will probably have to be removed by your dealer to determine the key number.

A metal key holder may cause damage to the area surrounding the ignition switch.

Instruments, Controls, & Other Features

Ignition Switch

The headlight is always on when the ignition switch is on. Leaving the ignition switch on with the engine stopped will drain the battery.

Do not turn the key while riding.

Engine Stop Switch

Do not use the engine stop switch except in an emergency. Doing so when riding will cause the engine to suddenly turn off, making riding unsafe.

If you stop the engine using the engine stop switch, turn the ignition switch off. Failing to do so will drain the battery.


The display locks 999,999 when the read-out exceeds 999,999.


The tripmeter A and B return to 0.0 when the read-out exceeds 999.9.

HISS (Except U, KO type)

The Honda Ignition Security System (HISS) immobilizes the engine's ignition system if an improperly-coded key is used to try and start the engine. When the ignition switch is turned OFF, the HISS immobilizer system is always alert, even if the HISS indicator is not flashing.

If the ignition switch is turned ON with the engine stop switch in the run position, the HISS indicator turns on and goes off after a few seconds to indicate it is OK to start the engine.

The HISS indicator starts flashing every 2 seconds for 24 hours after the ignition switch is turned OFF. To prevent or to restore the HISS indicator flashing:

1. With the ignition switch ON, press the MODE button to select the odometer.

2. Press and hold the MODE button for 2 seconds or more.

3. Turn the ignition switch OFF.

EC Directive

This immobilizer system complies with R & TTE (Radio and Telecommunications Terminal Equipment and the mutual recognition of their conformity) Directive.

The declaration of conformity to R & TTE Directive is provided to the owner at the time of purchase. The declaration of conformity should be kept at a safe place. When the declaration of conformity is lost or is not provided, contact your dealer.

South Africa only

South Africa only

Singapore only

Singapore only

Morocco only

Morocco only

Document Bag

The owner's manual, registration, and insurance information can be stored in the plastic document bag under the seat.

Ignition Cut-off System

A banking (lean angle) sensor automatically stops the engine and fuel pump if the scooter falls over. To reset the sensor, you must turn the ignition switch to OFF and back to the ON position before the engine can be restarted.

Fuels Containing Alcohol

Some conventional fuels blended with alcohol are available in some locales to help reduce emissions to meet clean air standards. If you plan to use blended fuel, check that it is unleaded and meets the minimum octane rating requirement.

The following fuel blends can be used in your scooter:

The use of petrol containing more than 10% ethanol may:

NOTICE Use of blended fuels containing higher than approved percentages can damage metal, rubber, plastic parts of your fuel system.

If you notice any undesirable operating symptoms or performance problems, try a different brand of petrol.

Catalytic Converter

This scooter is equipped with a three-way catalytic converter. The catalytic converter contains precious metals that serve as catalysts in high temperature chemical reactions that convert hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) in the exhaust gasses into safe compounds.

A defective catalytic converter contributes to air pollution and can impair your engine's performance. A replacement unit must be an original Honda part or equivalent.

See also:

 Honda NSS300 Forza - Owner's Manual > Information

 Honda NSS300 Forza - Owner's Manual > Caring for Your Scooter