2000 YAMAHA SR125 recommended oil

EAU00009
TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY ..................1-1
DESCRIPTION ....................................................2-1
Left view ............................................................. 2-1
Right view...........................................................2-2
Controls/Instruments ..........................................2-3
INSTRUMENT AND CONTROL FUNCTIONS ....3-1
Main switch/steering lock ................................... 3-1
Indicator lights ....................................................3-2
Speedometer......................................................3-2
Handlebar switches ............................................3-2
Clutch lever ........................................................3-4
Shift pedal ..........................................................3-4
Front brake lever ................................................ 3-4
Rear brake pedal................................................ 3-5
Fuel tank cap......................................................3-5
Fuel ....................................................................3-6
Fuel cock ............................................................3-6
Starter (choke) knob...........................................3-7
Seat ....................................................................3-8
Helmet holder .....................................................3-8
Rear shock absorber adjustment .......................3-9
Sidestand ...........................................................3-9
Sidestand/clutch switch operation check ......... 3-10PRE-OPERATION CHECKS ...............................4-1
Pre-operation check list......................................4-1
OPERATION AND IMPORTANT RIDING
POINTS................................................................5-1
Starting the engine .............................................5-1
Starting a warm engine ......................................5-3
Shifting ...............................................................5-4
Recommended shift points
(for Switzerland only) ......................................5-4
Tips for reducing fuel consumption ....................5-5
Engine break-in ..................................................5-5
Parking ...............................................................5-6
PERIODIC MAINTENANCE AND MINOR
REPAIR................................................................6-1
Tool kit................................................................6-1
Periodic maintenance and lubrication chart .......6-2
Panel removal and installation ...........................6-5
Panels A and B ..................................................6-5
Spark plug ..........................................................6-6
Engine oil ...........................................................6-8
Air filter .............................................................6-10
Carburetor adjustment .....................................6-11
Idle speed adjustment ......................................6-11
123
456
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6 4. Remove the filter cover screws,
drain bolt and the oil filter cover
and oil filter.
5. Clean the oil filter and strainer with
solvent. Replace if necessary.
6. Check the O-rings. If damaged, re-
place it.
7. Install the drain bolt, filter cover
screws and drain bolt. Then tight-
en to the specified torque.
NOTE:@ Make sure the O-ring is seated proper-
ly. @
EC000071*
CAUTION:@ Before reinstalling the oil drain bolt,
do not forget to install the O-ring,
compression spring, and oil strainer
in position. @8. Fill engine with oil. Install the oil fill-
er cap and tighten.
EC000066
CAUTION:@ l
Do not put in any chemical addi-
tives. Engine oil also lubricates
the clutch and additives could
cause clutch slippage.
l
Be sure no foreign material en-
ters the crankcase.
@9. Start the engine and warm up for a
few minutes. While warming up,
check for oil leakage. If oil leakage
is found, stop the engine immedi-
ately and check for the cause.
10. Stop the engine and check the oil
level.
1. Filter cover screw (´ 2)
2. Engine oil drain bolt B
Tightening torque:
Drain bolt A:
43 Nm (4.3 m·kg)
Filter cover screw:
7 Nm (0.7 m·kg)
Drain bolt B:
10 Nm (1.0 m·kg)
Recommended oil:
See page 8-1.
Oil quantity:
Total amount:
1.3 L
Periodic oil change:
1.0 L
With oil filter replacement:
1.1 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
EAU01094
Air filterThe air filter should be cleaned at the
specified intervals. It should be cleaned
more frequently if you are riding in un-
usually wet or dusty areas.
1. Remove panel A. (See page 6-5
for panel removal and installation
procedures.)
2. Remove the air filter case fitting
screws and the air filter case cov-
er.
3. Remove the air filter from its case
and clean it with solvent. After
cleaning, remove the remaining
solvent by squeezing the air filter.4. Apply the recommended oil to the
entire surface of the filter and
squeeze out the excess oil. It
should be wet but not dripping.
5. Install the air filter in its case.
6. Install panel A.
EC000085
CAUTION:@ l
Make sure the air filter is prop-
erly seated in the filter case.
l
The engine should never be run
without the air filter installed.
Excessive piston and/or cylin-
der wear may result.
@
1. Air filter
2. Steel net
Recommended oil:
Same as engine oil
1. Rubber gasket
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
EAU00732
Inspecting the brake fluid
levelInsufficient brake fluid may let air enter
the brake system, possibly causing the
brakes to become ineffective.
Before riding, check that the brake fluid
is above the minimum level and fill
when necessary.
Observe these precautions:l
When checking the fluid level,
make sure the top of the master
cylinder is level by turning the han-
dlebars.
l
Use only the designated quality
brake fluid. Otherwise, the rubber
seals may deteriorate, causing
leakage and poor brake perfor-
mance.
NOTE:@ If DOT 4 is not available, DOT 3 can be
used. @l
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor brake performance.
l
Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.
l
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
l
Have a Yamaha dealer check the
cause if the brake fluid level goes
down.
EAU00742
Brake fluid replacementThe brake fluid should be replaced only
by trained Yamaha service personnel.
Have the Yamaha dealer replace the
following components during periodic
maintenance or when they are dam-
aged or leaking:l
oil seals (every two years)
l
brake hoses (every four years)
1. Minimum level mark
Recommended brake fluid: DOT 4
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-23
6
EAU01106*
Drive chain lubricationThe chain consists of many parts which
work with each other. If the chain is not
maintained properly, it will wear out
quickly. Therefore, the chain must be
serviced regularly. This service is es-
pecially necessary when riding in dusty
areas.
The drive chain should be lubricated
every 500 km. First, remove all dirt and
mud from the chain with a brush or
cloth. Then, spray any of the many
brands of spray-type chain lubricant
between both rows of side plates and
on all center rollers.
To clean the chain thoroughly, remove
it from the motorcycle, dip it in solvent,
and clean out as much dirt as possible.
Then, take the chain out of the solvent
to dry it, and immediately lubricate it to
prevent it from rusting.
EAU02962
Cable inspection and
lubrication
EW000112
WARNING
@ Damage to the outer housing of ca-
bles may lead to internal rusting and
interfere with the cable movement.
Replace damaged cables as soon as
possible to prevent unsafe condi-
tions. @Lubricate the cables and cable ends. If
a cable does not operate smoothly, ask
a Yamaha dealer to replace it.
EAU00773
Throttle cable and grip
lubricationThe throttle twist grip assembly should
be greased at the time that the cable is
lubricated, since the grip must be re-
moved to get at the end of the throttle
cable. After removing the screws, hold
the end of the cable up in the air and
put in several drops of lubricant. With
the throttle grip disassembled, coat the
metal surface of the grip assembly with
a suitable all-purpose grease.
Recommended lubricant:
Engine oil
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-24
6
EAU02984
Brake and shift pedal
lubricationLubricate the pivoting parts.
EAU02985
Brake and clutch lever
lubricationLubricate the pivoting parts.
EAU02965
Center and sidestand
lubricationLubricate the pivoting and mating
joints.
Check to see that the center and side-
stand move up and down smoothly. Recommended lubricant:
Engine oil
Recommended lubricant:
Engine oil
Recommended lubricant:
Engine oil
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8-1
8
EAU01038
8-SPECIFICATIONSSpecifications
Model SR125
Dimensions
Overall length 2,020 mm
Overall width 775 mm
Overall height 1,100 mm
Seat height 745 mm
Wheelbase 1,285 mm
Ground clearance 155 mm
Minimum turning radius 2,100 mm
Basic weight (with oil and full
fuel tank)
113 kg
Engine
Engine type Air-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 124 cm
3
Bore ´ Stroke 57.0 ´ 48.8 mm
Compression ratio 10:1
Starting system Electric starter
Lubrication system Wet sumpEngine oil
Ty p e
Recommended engine oil
classification API Service SE, SF, SG type or
higher
Quantity
Periodic oil change 1.0 L
With oil filter replacement 1.1 L
Total amount 1.3 L
Air filterWet type element
-20˚ -10˚ 0˚
10˚20˚ 30˚
40˚50˚C
SAE 10W/30
SAE 15W/40SAE 20W/40SAE 20W/50
SAE 10W/40
CAUTION:Be sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled
“Energy Conserving”) contain anti-friction additives which
will cause clutch and/or starter clutch slippage, resulting in
reduced component life and poor engine performance.
E_3mw.book Page 1 Monday, February 5, 2001 9:54 AM