2003 YAMAHA TZR50 wheel

SAFETY INFORMATION.....................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/steering lock .................3-1
Indicator lights ..................................3-1
Speedometer unit .............................3-2
Tachometer .......................................3-3
Handlebar switches ..........................3-3
Clucht lever .......................................3-4
Shift pedal.........................................3-4
Brake lever ........................................3-4
Brake pedal.......................................3-5
Fuel tank cap ....................................3-5
Catalytic converter............................3-6
2-stroke engine oil ............................3-6
Fuel cock ..........................................3-6
Starter (choke) lever..........................3-7
Seat...................................................3-7
Storage compartment.......................3-7
Sidestand ..........................................3-8
Ignition circuit cut-off system ...........3-8
PRE-OPERATION CHECKS...............4-1
Pre-operation check list....................4-2OPERATION AND IMPORTANT RIDING
POINTS................................................5-1
Starting a cold engine ......................5-1
Shifting ..............................................5-2
Tips for reducing fuel consumption..5-2
Engine break-in.................................5-3
Parking ..............................................5-3
PERIODIC MAINTENANCE AND
MINOR RAPAIR...................................6-1
Owner’s tool kit .................................6-1
Periodic maintenance and lubrication
chart ..................................................6-2
Removing and installing cowlings ....6-5
Checking the spark plug ..................6-6
Transmission oil ................................6-6
To check the coolant level ................6-8
Adjusting the carburetor ...................6-9
Adjusting the engine idling speed ....6-9
Adjusting the throttle cable free play ..6-9
Tires ................................................6-10
Cast wheels ....................................6-12
Adjusting the clucth lever free play 6-12
Adjusting the brake pedal position
and free play................................6-13
Adjusting the rear brake light
switch ..........................................6-13
Front brake pads ............................6-14
Rear brake pads .............................6-14
Checking the brake fluid level ........6-14
Changing the brake fluid ................6-15Drive Chain slack ............................6-16
Checking and lubricating the
cables ..........................................6-17
Checking and lubricating the brake
and shift pedals ...........................6-17
Checking and lubricating the brake
and cluctch levers .......................6-18
Checking and lubricating the
sidestand .....................................6-18
Checking the front fork ...................6-18
Checking the steering.....................6-19
Checking the wheel bearings .........6-19
Battery ............................................6-19
Replacing the fuse ..........................6-20
Replacing the headlight bulb..........6-21
Replacing a turn signal light bulb
or the tail/brake light bulb ...........6-21
Replacing the license plate light
bulb .............................................6-22
Supporting the mortorcycle ............6-22
Troubleshooting ..............................6-23
Troubleshooting charts ...................6-24
Engine overheating .........................6-25
MOTORCYCLE CARE AND
STORAGE............................................7-1
Care ..................................................7-1
Storage ...........................................7-2
SPECIFITACIONS...............................8-1
TABLE OF CONTENTS
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• We recommend that you prac-
tice riding your motorcycle
where there is no traffic until
you have become thoroughly
familiar with the motorcycle
and all of its controls.
Many motorcycle accidents have
been caused by error of the
motorcycle operator. A typical
error made by the operator is
veering wide on a turn due to
EXCESSIVE SPEED or undercor-
nering (insufficient lean angle for
the speed).
• Always obey the speed limit
and never travel faster than
warranted by road and traffic
conditions.
• Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
The posture of the operator and
passenger is important for proper
control.• The operator should keep both
hands on the handlebar and
both feet on the operator foo-
trests during operation to
maintain control of the
motorcycle.
• The passenger should always
hold onto the operator, seat
strap, or grab bar, if equipped,
with both hands and keep both
feet on the passenger foo-
trests.
• Never carry a passenger
unless he or she can firmly pla-
ce both feet on the passenger
footrests.
Never ride under the influence of
alcohol or other drugs.
This motorcycle is designed for
on-road use only, therefore, it is
not suitable for off-road use.
Protective apparel
The majority of fatalities from
motorcycle accidents are the result of
head injuries. The use of a safety hel-
met is the single most critical factor in
the prevention or reduction of head
injuries.
Always wear an approved hel-
met.
Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impair-
ment of vision which could delay
seeing a hazard.
The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing abra-
sions or lacerations.
Never wear loose-fitting clothes,
otherwise they could catch on
the control levers, footrests, or
wheels and cause injury or an
accident.
Never touch the engine or
exhaust system during or after
operation. They become very hot
and can cause burns. Always
wear protective clothing that
covers your legs, ankles, and
feet.
Passengers should also observe
the precautions mentioned abo-
ve.
1
tSAFETY INFORMATION
1-2
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ITEM CHECKS PAGE
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-9
• If necessary, have Yamaha dealer adjust cable free play and
lubricate cable and grip housing.
Control cables• Make sure that operation is smooth.
• Lubricate if necessary.6-17
• Check chain slack.
Drive chain• Adjust if necessary.
6-16
• Check chain condition.
• Lubricate if necessary.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-10
• Check air pressure.
• Correct if necessary.
Brake and clutch levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-18
Sidestand• Make sure that operation is smooth.
• Lubricate pivot if necessary.6-18
Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.—
Instruments, lights, signals • Check operation.
and switches• Correct if necessary.—
Engine stop switch• Check operation.3-3
Sidestand switch• Check operation of ignition circuit cut-off system.
• If system is defective, have Yamaha dealer check vehicle.3-8
PRE-OPERATION CHECKS
4-3
4
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EAU17710
Periodic maintenance and lubrication chart
NOTE:
The annual checks must be performed every year, except if a kilometer-based maintenance is performed
instead.
From 30000 km, repeat the maintenance intervals starting from 6000 km.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
ODOMETER READING (x 1000 Km) ANNUAL
NOITEM CHEK OR MAINTENANCE JOB 1 6 12 18 24CHECK
1*Fuel lineCheck fuel and vacuum hoses for cracks or damage.√√√√ √
2Spark plugReplace.√√√√ √
3Air filter elementClean.√√Replace.√√
4ClutchCheck operation.
Adjust.√√ √ √√
5*Front brakeCheck operation, fluid level and vehicle for fluid leakage.√√ √ √√ √Replace brake pads. Whenever worn to the limit
6*Rear brakeCheck operation, fluid level and vehicle for fluid leakage.√√ √ √√ √Replace brake pads. Whenever worn to the limit
7*Brake hoseCheck for cracks or damage.√√√√ √Replace.Every 4 years
8*WheelsCheck runout and for damage.√√√√
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ODOMETER READING (x 1000 Km) ANNUAL
NOITEM CHEK OR MAINTENANCE JOB 1 6 12 18 24CHECK
Check tread depth and for damage.
9*TiresReplace if necessary.
√√√√ √
Check air pressure.
Correct if necessary.
10 *Wheel bearingsCheck bearing for looseness or damage.√√√√
11 *SwingarmCheck operation and for excessive play.√√√√Lubricate with lithium-soap-based grease. Every 24000 km
12Drive chainCheck chain slack, alignment and condition. Every 500 km and after washing
Adjust and thoroughly lubricate chain with engine oil. the motorcycle or riding in the rain
13 *Steering bearingsCheck bearing play and steering for roughness.√√ √ √√Lubricate with lithium-soap-based grease. Every 24000 km
14 *Chassis fastenersMake sure that all nuts, bolts and screws are
√√√√ √
properly tightened.
15SidestandCheck operation.
Lubricate.√√√√ √
16 *Sidestand switchCheck operation.√√ √ √√ √
17 *Front forkCheck operation and for oil leakage.√√√√
18 *Shock absorber Check operation and shock absorber for oil leakage.
√√√√
assembly
19 *CarburetorCheck starter (choke) operation.
Adjust engine idling speed.√√ √ √√ √
20 *Autolube pumpCheck operation.
Bleed if necessary.√√√√
21Transmission oilCheck oil level.√√ √ √√ √
Change.√√
PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
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1. Depth
2. Side face
Tire inspection
The tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragments in it, or if
the sidewall is cracked, have a Yama-
ha dealer replace the tire immediately.
NOTE:
The tire tread depth limits may differ
from country to country. Always
comply with the local regulations.
EWA10470
s s
WARNING
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
vehicle with excessively worn
tires decreases riding stability
and can lead to loss of control.
The replacement of all wheel
and brake related parts, inclu-
ding the tires, should be left to
a Yamaha dealer, who has the
necessary professional know-
ledge and experience.
Tire information
This motorcycle is equipped with cast
wheels and tubeless tires with valves.
EWA10480
s s
WARNING
The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the motorcy-
cle cannot be guaranteed.
After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor España, S.A.
Always make sure that the val-
ve caps are securely installed
to prevent air pressure leaka-
ge.
Use only the tire valves and val-
ve cores listed below to avoid
tire deflation during a high-
speed ride.
EWA10600
s s
WARNING
This motorcycle is fitted with
super-high-speed tires. Note the
following points in order to make
the most efficient use of these tires.
Use only the specified replace-
ment tires. Other tires may run
the danger of bursting at super
high speeds.
Front tire:
Size:
100/80-17
Manufacturer/model:
PIRELLI
Rear tire:
Size:
130/70-17
Manufacturer/model:
PIRELLI
Minimum tire tread depth (front
and rear):
1.6 mm (0.06 in)
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
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Brand-new tires can have a
relatively poor grip on certain
road surfaces until they have
been “broken in”. Therefore, it
is advisable before doing any
high-speed riding to ride con-
servatively for approximately
100 km (60 mi) after installing a
new tire.
The tires must be warmed up
before a high-speed run.
Always adjust the tire air pres-
sure according to the opera-
ting conditions.
EAU21960
Cast wheels
To maximize the performance, durabi-
lity, and safe operation of your
motorcycle, note the following points
regarding the specified wheels.
The wheel rims should be chec-
ked for cracks, bends or warpage
before each ride. If any damage
is found, have a Yamaha dealer
replace the wheel. Do not
attempt even the smallest repair
to the wheel. A deformed or crac-
ked wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced.
An unbalanced wheel can result
in poor performance, adverse
handling characteristics, and a
shortened tire life.
Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for
it to develop its optimal characte-
ristics.
EAU22041
Adjusting the clutch lever
free play
1. Free play
The clutch lever free play should mea-
sure 2~5 mm (0,08~0,2 in) as shown.
Periodically check the clutch lever free
play and, if necessary, adjust it as
follows.
1. Loosen the locknut at the clutch
lever.
2. To increase the clutch lever free
play, turn the adjusting bolt in
direction (a). To decrease the
clutch lever free play, turn the
adjusting bolt in direction (b).
NOTE:
If the specified clutch lever free play
could be obtained as described abo-
ve, tighten the locknut and skip the
rest of the procedure, otherwise pro-
ceed as follows.
3. Fully turn the adjusting bolt at the
clutch lever in direction (a) to loo-
sen the clutch cable.
4. Loosen the locknut at the crank-
case.
5. To increase the clutch lever free
play, turn the adjusting nut in
direction (a). To decrease the
clutch lever free play, turn the
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
a
b 1
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EAU22760
Drive chain slack
(a) Drive chain slack
The drive chain slack should be chec-
ked before each ride and adjusted if
necessary.
EAU22771
To check the drive chain slack
1. Place the motorcycle on the
sidestand.
NOTE:
When checking and adjusting the dri-
ve chain slack, there should be no
weight on the motorcycle.
2. Shift the transmission into the
neutral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tigh-
test portion of the drive chain,and then measure the drive chain
slack as shown.
4. If the drive chain slack is inco-
rrect, adjust it as follows.
EAU22920
To adjust the drive chain slack
1. Cotter pin
2. Axle nut
3. Lock nut
4. Chain tensioner
1. Remove the cotter pin from the axle
nut, and then loosen the axle nut.
2. Loosen the chain puller locknut
at each end of the swingarm.
3. To tighten the drive chain, turn
the adjusting nut at each end of
the swingarm in direction (a). To
loosen the drive chain, turn theadjusting nut at each end of the
swingarm in direction (b), and
then push the rear wheel forward.
NOTE:
Using the alignment marks on each
side of the swingarm, make sure that
both adjusting nuts are in the same
position for proper wheel alignment.
ECA10570
CAUTION
Improper drive chain slack will
overload the engine as well as
other vital parts of the motorcycle
and can lead to chain slippage or
breakage. To prevent this from
occurring, keep the drive chain
slack within the specified limits.
4. Tighten the locknuts, and then
tighten the axle nut to the speci-
fied torque.
5. Insert a new cotter pin into the
axle nut, and then bend its ends
as shown.
Tightening torque:
Axle nut:
90 Nm (9,0 m•kgf)
Drive chain slack:
40~50 mm (1,5 ~1,9 in)
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-16

a
a
b
2
1
4
3
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