fuel cap YAMAHA DT125R 2002 Owners Manual

EAU00009
TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY ............... 1-1
DESCRIPTION .................................................. 2-1
Left view ......................................................... 2-1
Right view ....................................................... 2-2
Controls and instruments ............................... 2-3
INSTRUMENT AND CONTROL FUNCTIONS .. 3-1
Main switch ..................................................... 3-1
Indicator and warning lights ............................ 3-1
Speedometer unit .......................................... 3-2
Tachometer .................................................... 3-2
Coolant temperature gauge ............................ 3-3
Handlebar switches ........................................ 3-3
Clutch lever .................................................... 3-4
Shift pedal ...................................................... 3-4
Brake lever ..................................................... 3-5
Brake pedal .................................................... 3-5
Fuel tank cap .................................................. 3-5
Fuel (except for Switzerland and Austria) ...... 3-6
Fuel (for Switzerland and Austria) ................. 3-6
Catalytic converter
(for Switzerland and Austria) ....................... 3-7
2-stroke engine oil .......................................... 3-8
Fuel cock ........................................................ 3-9
Starter (choke) lever ..................................... 3-10Kickstarter .................................................... 3-10
Steering lock ................................................. 3-10
Seat .............................................................. 3-11
Helmet holder ............................................... 3-12
Adjusting the shock absorber assembly ....... 3-12
Carrier .......................................................... 3-14
YEIS handling precautions .......................... 3-14
YPVS ............................................................ 3-14
Sidestand ..................................................... 3-15
Ignition circuit cut-off system ........................ 3-16
PRE-OPERATION CHECKS ............................. 4-1
Pre-operation check list .................................. 4-1
OPERATION AND IMPORTANT
RIDING POINTS ............................................... 5-1
Starting a cold engine .................................... 5-1
Starting a warm engine .................................. 5-2
Shifting ........................................................... 5-2
Recommended shift points
(for Switzerland only) .................................. 5-3
Tips for reducing fuel consumption ................ 5-3
Engine break-in .............................................. 5-4
Parking ........................................................... 5-5
123
45
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2-1
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DESCRIPTION
2
1. Headlight (page 6-36)
2. Radiator cap (page 6-14)
3. Fuel cock (page 3-9)
4. Air filter element (page 6-16)
5. Coolant reservoir tank (page 6-12)6. Helmet holder (page 3-12)
7. Starter (choke) lever (page 3-10)
8. Shift pedal (page 3-4, 5-2)
9. YEIS (page 3-14)
10. YPVS (page 3-14)
1
23 4 5 6
7 8
9 10
Left view
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2-3
DESCRIPTION
2
1. Clutch lever (page 3-4, 6-22)
2. Left handlebar switches (page 3-3)
3. Speedometer unit (page 3-2)
4. Coolant temperature gauge (page 3-3)
5. Tachometer (page 3-2)6. Right handlebar switch (page 3-4)
7. Brake lever (page 3-5, 6-23)
8. Throttle grip (page 6-18, 6-29)
9. Fuel tank cap (page 3-5)
10. Main switch (page 3-1)
12 34 5
67
8 9
10
Controls and instruments
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3-5
INSTRUMENT AND CONTROL FUNCTIONS
3
EAU00158
Brake leverThe brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the han-
dlebar grip.
1
1. Brake lever
EAU00162
Brake pedalThe brake pedal is on the right side
of the motorcycle. To apply the rear
brake, press down on the brake
pedal.
1
1. Brake pedal
EAU00177
Fuel tank capTo remove the fuel tank cap
1. Insert the key into the lock and
turn it 1/4 turn counterclockwise.
2. Turn the fuel tank cap 1/3 turn
counterclockwise and pull it off.
31
2
1. Fuel tank cap
2. Unlock.
3. Open.
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3-6
INSTRUMENT AND CONTROL FUNCTIONS
3To install the fuel tank cap
1. Insert the fuel tank cap into the
tank opening with the key insert-
ed in the lock, and then turn the
cap 1/3 turn clockwise.
2. Turn the key 1/4 turn clockwise,
and then remove it.
NOTE:
The fuel tank cap cannot be installed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly installed and
locked.
EW000023
wMake sure that the fuel tank cap is
properly closed and locked before
riding.
EAU03753
Fuel(except for Switzerland and
Austria)
Make sure that there is sufficient fuel
in the tank. Fill the fuel tank to the
bottom of the filler tube as shown.
EW000130
w8Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
8Avoid spilling fuel on the hot
engine.
21
1. Filler tube
2. Fuel level
EAU03754
Fuel(for Switzerland and Austria)
Make sure that there is sufficient fuel
in the tank. When refueling, be sure
to insert the pump nozzle into the fuel
tank filler hole and to fill the tank to
the bottom of the filler tube as shown.
1
3
5 42
1. Pump nozzle
2. Fuel tank filler hole
3. Filler tube
4. Fuel level
5. Leaf valve
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3-7
INSTRUMENT AND CONTROL FUNCTIONS
3
EW000130
w8Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
8Avoid spilling fuel on the hot
engine.
EAU00185
cCImmediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted sur-
faces or plastic parts.
EAU04206
Your Yamaha engine has been
designed to use regular unleaded
gasoline with a research octane num-
ber 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 mainte-
nance costs.
EAU01084
Catalytic converter(for Switzerland and Austria)
This motorcycle is equipped with a
catalytic converter in the exhaust
chamber.
EW000128
wThe exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance
work.
Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
10.0 L
Reserve amount:
1.8 L
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7-4
MOTORCYCLE CARE AND STORAGE
7
StorageShort-term
Always store your motorcycle in a
cool, dry place and, if necessary, pro-
tect it against dust with a porous
cover.
ECA00014
cC8Storing the motorcycle in a
poorly ventilated room or cov-
ering it with a tarp, while it is
still wet, will allow water and
humidity to seep in and cause
rust.
8To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
Long-term
Before storing your motorcycle for
several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. For motorcycles equipped with a
fuel cock that has an “OFF” posi-
tion: Turn the fuel cock lever to
“OFF”.
3. Drain the carburetor float cham-
ber by loosening the drain bolt;
this will prevent fuel deposits
from building up. Pour the
drained fuel into the fuel tank.
4. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes
are grounded. (This will limit
sparking during the next step.)
d. Turn the engine over several
times with the starter. (This
will coat the cylinder wall with
oil.)
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
EWA00003
wTo prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turn-
ing the engine over.
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8-1
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SPECIFICATIONS
8
Specifications
Model DT125R
Dimensions
Overall length 2,170 mm
2,235 mm (N, S, SF, CH, A only)
Overall width 830 mm
Overall height 1,255 mm
Seat height 885 mm
Wheel base 1,415 mm
Ground clearance 315 mm
Minimum turning radius 2,100 mm
Basic weight (with oil and
full fuel tank)127 kg
129 kg (CH, A only)
Engine
Engine type Liquid-cooled 2-stroke
Cylinder arrangement Forward-inclined single
cylinder
Displacement 124 cm
3
Bore ×Stroke 56.0 ×50.7 mm Compression ratio 6.7:1
Starting system Kickstarter
Lubrication system Separate lubrication
(Yamaha Autolube)
Engine oil (2-cycle)
Type 2-stroke engine oil
Capacity
Total amount 1.2 L
Transmission oil
Type SAE 10W30 type SE motor oil
Capacity
Periodic oil change 0.75 L
Total amount 0.8 L
Cooling system capacity
(total amount)0.92 L
Air filterWet type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 10 L
Reserve amount 1.8 L
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