Page 31 of 142

4-9
1
2
34
5
6
7
8
9
10
11
of gasoline or higher octane grade.
NOTICE
ECB00060
Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the piston rings, as well
as to the exhaust system.
WARNING
EWB00310
Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is overfilled,
fuel could spill out due to heat from the en-
gine or the sun.
Be careful not to spill fuel, especially on the
engine or exhaust pipe which can cause a
fire and severe injury. Wipe up any spilled
fuel immediately.
Do not refuel right after the engine has been
running and is still very hot.
Be sure the fuel tank cap is closed securely.
EBU18830
Fuel cock
The fuel cock supplies fuel from the tank to the car-
buretors while also filtering it.The fuel cock lever positions are explained as fol-
lows and shown in the illustrations.
OFF
With the fuel cock lever in this position, fuel will not
flow. Always turn the fuel cock lever to this position
when the engine is not running.
1. Arrow mark positioned over “OFF”
RES
ONFUEL
OFF
1
Page 100 of 142
8-25
1
2
3
4
5
6
78
9
10
11
6. Remove the fuel tank by removing the bolts.
7. Remove the air filter case cover by unhooking
the holders.8. Remove the mixing chamber cap securing
plate by removing the screw.
1. Fuel tank
2. Bolt
1
2
22
2
1. Air filter case cover
2. Air filter case cover holder
1 2 2
Page 105 of 142

8-30
1
2
3
4
5
6
78
9
10
11
5. Move the throttle lever a few times and re-
check the position.
6. Install the fuel tank, side cover, radiator cover
and air filter case cover.
7. Connect the fuel hoses.
8. Install the seat.
EBU24020
Adjusting the engine idling speed
The engine idling speed must be checked and, if
necessary, adjusted as follows at the intervals
specified in the periodic maintenance and lubrica-tion chart.
TIP
A diagnostic tachometer is needed to make this
adjustment.
The carburetor synchronization and the throttle
cable free play must be checked, and adjusted if
necessary, before adjusting the engine idling
speed.
1. Start the engine and warm it up.
TIP
The engine is warm when it quickly responds to the
throttle.
2. Attach the tachometer to the spark plug lead.
3. Turn in both pilot air screws until they lightly
seat.
4. Turn out both pilot air screws to specification.
(See the “Changing the carburetor settings”
section on the page 8-22.)
1. Adjusting nut
2. Locknut
1
2
Page 133 of 142

10-2
1
2
3
4
5
6
7
8
910
11
Cooling system:
Coolant reservoir capacity (up to the maximum level mark):
0.28 L (0.30 US qt, 0.25 Imp.qt)
Radiator capacity (including all routes):
1.50 L (1.59 US qt, 1.32 Imp.qt)
Air filter:
Air filter element:
Wet element
Fuel:
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
12.0 L (3.17 US gal, 2.64 Imp.gal)
Fuel reserve amount:
2.5 L (0.66 US gal, 0.55 Imp.gal)
Carburetor:
Manufacturer:
MIKUNI
Type
×
quantity:
VM26SS x 2
Spark plug (s):
Manufacturer/model:
NGK/BR8ES
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:
Wet, multiple-disc
Transmission:
Primary reduction system:
Helical gearPrimary reduction ratio:
66/23 (2.869)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
41/14 (2.929)
Transmission type:
Constant mesh 6-speed
Operation:
Left foot operation
1st:
32/13 (2.461)
2nd:
29/16 (1.812)
3rd:
27/18 (1.500)
4th:
25/20 (1.250)
5th:
23/22 (1.045)
6th:
21/24 (0.875)
Chassis:
Frame type:
Steel tube frame
Caster angle:
9.0 °
Trail:
40.0 mm (1.57 in)
Front tire:
Type:
Tubeless
Page 139 of 142

INDEX
A
Accessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-17
B
Brake and clutch levers, checking and lubricating ....... 8-43
Brake fluid, changing.................................................... 8-35
Brake fluid level, checking............................................ 8-33
Brake lever ..................................................................... 4-5
Brake lever free play, checking the front ...................... 8-35
Brake light switches ..................................................... 8-38
Brake pads, checking the front and rear ...................... 8-32
Brake pedal .................................................................... 4-5
Brake pedal, checking and lubricating ......................... 8-43
Brake pedal position, checking .................................... 8-36
Brakes, front and rear .................................................... 5-3
C
Cables, checking and lubricating ................................. 8-43
Carburetor settings, changing ...................................... 8-22
Chassis fasteners........................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-4
Clutch lever free play, adjusting ................................... 8-39
Coolant ................................................................. 5-3
,
8-12
D
Drive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-42Drive chain slack .......................................................... 8-40
E
Engine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-30
Engine, starting a warm ................................................. 6-2
Engine stop switch ......................................................... 4-2
F
Fuel ................................................................................ 4-8
Fuel and 2-stroke engine oil mixing ratio ....................... 5-3
Fuel cock ........................................................................ 4-9
Fuel tank cap.................................................................. 4-7
H
Handlebar switches ........................................................ 4-2
Headlight beam, adjusting............................................ 8-48
Headlight bulb, replacing.............................................. 8-45
I
Identification numbers .................................................. 11-1
Instruments, lights and switches .................................... 5-7
K
Key identification number ............................................. 11-1
Kickstarter ...................................................................... 4-7
L
Label locations ............................................................... 2-1
Light switch .................................................................... 4-2