Esentialist
Learning to Learn One Mistake at a Time

Fuel

Make sure there is sufficient gasoline in the tank.

This guide is in progress. Use at your own risk! These resources are for personal references first, and I claim no expertise, know-how, accuracy, intelligence, or anything else of the kind.

Fuel Specifications

  • Recommended fuel: Regular unleaded gasoline (E10 acceptable)
  • Fuel tank capacity: 3..7 gal
  • Fuel reserve amount: 0.79 gal

Your Yamaha engine has been designed to use regular unleaded gasoline with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of 91 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand or premium unleaded fuel. Use of unleaded fuel will extend spark plug life and reduce maintenance costs.

Gasohol

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.

At the Gas Station

  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.
  3. Wipe up any spilled fuel 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.

    5. Fuel Tank Overflow Hose

    Before operating the vehicle:

    • Check the fuel tank overflow hose connection.
    • Check the fuel tank overflow hose for cracks or damage, and replace it if necessary.
    • Make sure that the end of the fuel tank overflow hose is not blocked, and clean it if necessary.
    • Make sure that the end of the fuel tank overflow hose is positioned as shown.