Page 88 of 344
4-21
EBU00093
Fuel cock
The fuel cock supplies fuel from the fuel tank to
the carburetor.
The fuel cock has three positions.
OFF: With the lever in this position fuel will not
flow. Always turn the lever to this position
when the engine is not running.
ON: With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
RES: This indicates reserve. If you run out of
fuel while riding, turn the lever to this
position. THEN FILL THE FUEL TANK
AT THE FIRST OPPORTUNITY. After
refuelling, return the fuel cock lever to the
“ON” position.
 5TH-9-64 4~5  2/16/05 2:42 PM  Page 20 
     
        
        Page 102 of 344
5-9
EBU09981
Fuel
Make sure there is sufficient gasoline in the
tank.
NOTE:
(for Europe only)
If knocking or pinging occurs, use a different
brand of gasoline or higher octane grade.
cC
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.
Recommended fuel:
Unleaded gasoline only
For Europe: Regular unleaded gasoline
only with a research octane 
number of 91 or higher
Fuel tank capacity:
Total: 6.8 L
Reserve: 0.9 L
1. Filler tube 2. Fuel level1. Tube de remplissage 2. Niveau de carburant1. Tubo de llenado 2. Nivel de combustible
 5TH-9-64 4~5  2/16/05 2:42 PM  Page 34 
     
        
        Page 326 of 344
10-3
Model YFM80R
Final gear oil:
Type SAE 80API “GL-4” Hypoid gear oil
Quantity:
Total amount 0.12 L
Air filter: Wet type element
Fuel:
Type Unleaded gasoline only
For Europe: Regular Unleaded gasoline only 
with a research octane number of 
91 or higher
Tank capacity 6.8 L
Reserve amount 0.9 L
Carburetor:
Type/manufacturer VM16SH/MIKUNI
Spark plug:
Type/manufacturer CR7HSA/NGK
Gap 0.6–0.7 mm
Clutch type: Wet, multiple-disc automatic
 5TH-9-64 9~  3/1/05 7:50 PM  Page 310