Page 20 of 88
3-6
INSTRUMENT AND CONTROL FUNCTIONS
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2
3
4
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6
7
8
9
EAU01183Fuel
Make sure there is sufficient fuel in
the tank. Fill the fuel tank to the
bottom of the filler tube as shown
in the illustration.
EW000130
w
Do not overfill the fuel tank. Avoid
spilling fuel on the hot engine. Do
not fill the fuel tank above the bot-
tom of the filler tube or it may
overflow when the fuel heats up
later and expands.
1. Filler tube
2. Fuel level
EAU00185
cC
Always wipe off spilled fuel imme-
diately with a dry and clean soft
cloth. Fuel may deteriorate painted
surfaces or plastic parts.
EAU00191
NOTE:
If knocking or pinging occurs, use a
different brand of gasoline or high-
er octane grade.
1
2
Recommended fuel:
Regular unleaded gasoline
with a research octane
number of 91 or higher.
Fuel tank capacity:
Total:
9.5 L
Reserve:
2.6 L
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Page 21 of 88
INSTRUMENT AND CONTROL FUNCTIONS
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2
3
4
5
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9
3-7
NOTE:
The fuel cock operates on vacuum
from the engine when set at “ON”
or “RES”. If the line connecting the
cock to the carburetor intake mani-
fold is not connected or has a leak,
the cock will not function properly.
EAU00208Fuel cock
The negative pressure fuel cock
supplies fuel from the tank to the
carburetor while filtering it also.
The fuel cock has the following
three positions:
ON
With the lever in this position, fuel
flows if the engine is running, but
stops if the engine is not running.
1. Arrow mark pointing to “ON”
RES
This indicates reserve. If you run
out of fuel while riding, move the
lever to “PRI”, start the engine,
then move the lever to “RES”. FILL
THE TANK AT THE FIRST OPPOR-
TUNITY. BE SURE TO MOVE THE
LEVER TO “ON” AFTER REFUEL-
ING.
1. Arrow mark pointing to “RES”
11
ONRES
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OPERATION AND IMPORTANT RIDING POINTS
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91. Turn the fuel cock to “ON”.
2. Turn the main switch to “ON”
and the engine stop switch to
“#”.
3. Shift the transmission into
neutral.
NOTE:
When the transmission is in neu-
tral, the neutral indicator light
should be on. If the light does not
come on, ask a Yamaha dealer to
inspect it.
4. Turn on the starter (choke) and
completely close the throttle
grip.
5. Start the engine by pushing
the start switch.
NOTE:
If the engine fails to start, release
the start switch, wait a few sec-
onds, then try again. Each attempt
should be as short as possible to
preserve the battery. Do not crank
the engine more than 10 seconds
on any one attempt.
6. After starting the engine, move
the starter (choke) to the
halfway position.
NOTE:
For maximum engine life, never
accelerate hard with a cold engine!
7. After warming up the engine,
turn off the starter (choke)
completely.
NOTE:
The engine is warm when it
responds normally to the throttle
with the starter (choke) turned off.
EAU01258Starting a warm engine
The starter (choke) is not required
when the engine is warm.
EC000046
cC
See the “Engine break-in” section
prior to operating the motorcycle
for the first time.
1. Arrow mark pointing to “ON”
1
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Page 81 of 88
SPECIFICATIONS
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Fuel
Type Regular unleaded gasoline
Fuel tank capacity 9.5 L
Reserve amount 2.6 L
Carburetor
Type/quantity BDS26/1
Manufacturer MIKUNI
Spark plug
Manufacturer / Type NGK / CR6HSA or
DENSO / U20FSR-U
Gap 0.6 ~ 0.7 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 3.400
Secondary reduction system Chain drive
Secondary reduction ratio 3.615
Number of sprocket teeth
(Rear/Front) 47/13
Transmission type Constant mesh 5-speed
Operation Left foot operationGear ratio 1st 2.643
2nd 1.684
3rd 1.261
4th 1.000
5th 0.821
Chassis
Frame type Double cradle
Caster angle 32°
Trail 120 mm
Tire
Type With tube
Front
Size 3.00-18 47P
Manufacturer/ CHENG SHIN / C-916
model
Rear
Size 130/90-15 M/C 66P
Manufacturer/ CHENG SHIN / C-915
model
8-2
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