Yamaha XMax YP400RA - Owner's Manual > Fuel tank cap

To open the fuel tank cap

To open the fuel tank cap

  1. Fuel tank cap
  2. Fuel tank cap cover

1. Insert the key into the lock and turn it counterclockwise. The lock will be released and the lid can be pulled open.

2. To remove the fuel tank cap, turn it counterclockwise and then pull it off.

To close the fuel tank cap

1. Place the fuel tank cap onto the fuel tank opening and turn the fuel tank cap clockwise.


Make sure that the fuel tank cap is properly closed after filling fuel.

Leaking fuel is a fire hazard.

2. Close the lid, turn the key clockwise to the original position, and then remove it.


Make sure there is sufficient gasoline in the tank.


Gasoline and gasoline vapors are extremely flammable. To avoid fires and explosions and to reduce the risk of injury when refueling, follow these instructions.

1. Before refueling, turn off the engine and be sure that no one is sitting on the vehicle. Never refuel while smoking, or while in the vicinity of sparks, open flames, or other sources of ignition such as the pilot lights of water heaters and clothes dryers.

2. Do not overfill the fuel tank. When refueling, be sure to insert the pump nozzle into the fuel tank filler hole. Stop filling when the fuel reaches the bottom of the filler tube. Because fuel expands when it heats up, heat from the engine or the sun can cause fuel to spill out of the fuel tank.


  1. Fuel tank filler tube
  2. Maximum fuel level

3. Wipe up any spilled fuel immediately.

NOTICE: Immediately wipe off spilled fuel with a clean, dry, soft cloth, since fuel may deteriorate painted surfaces or plastic parts.

4. Be sure to securely close the fuel tank cap.


Gasoline is poisonous and can cause injury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gasoline in your eyes, see your doctor immediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes.

Recommended fuel: Premium unleaded gasoline (Gasohol (E10) acceptable)

Fuel tank capacity: 14.0 L (3.70 US gal, 3.08 Imp.gal)

Fuel reserve amount (when the fuel level warning indicator flashes): 2.0 L (0.53 US gal, 0.44 Imp.gal)


Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust system.

Your Yamaha engine has been designed to use premium unleaded gasoline with a research octane number of 95 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand. Use of unleaded fuel will extend spark plug life and reduce maintenance costs.


There are two types of gasohol: gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if the ethanol content does not exceed 10% (E10). Gasohol containing methanol is not recommended by Yamaha because it can cause damage to the fuel system or vehicle performance problems.

Catalytic converters

This vehicle is equipped with catalytic converters in the exhaust system.


The exhaust system is hot after operation.

To prevent a fire hazard or burns:


Use only unleaded gasoline. The use of leaded gasoline will cause unrepairable damage to the catalytic converter.


To open the seat

1. Place the scooter on the centerstand.

2. Insert the key into the main switch, and then turn it counterclockwise to "OPEN".


  1. Open.


Do not push inward when turning the key.

3. Fold the seat up.

To open the seat

1. Seat open position

To close the seat

1. Fold the seat down, and then push it down to lock it in place.

2. Remove the key from the main switch if the scooter will be left unattended.


Make sure that the seat is properly secured before riding.

See also:

 Yamaha XMax YP400RA - Owner's Manual > Handlebar switches

Left Pass switch " " Dimmer switch " / " Turn signal switch "/ " Horn switch " "

 Yamaha XMax YP400RA - Owner's Manual > Storage compartments

Front storage compartment A Open. Storage compartment opening lever Lid

Maxi Scooters: