2014 YAMAHA SR400 warning light

PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
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12 gine 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 with-
in the specified limits.
[ECA10572]
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the sameposition for proper wheel alignment.
6. Take the motorcycle off the center- stand, and then put the sidestand down.
7. Tighten both drive chain puller locknuts, and then tighten the axle
nut and brake torque rod nut to
their specified torques.
8. Adjust the brake pedal free play. (See page 6-18.)
WARNING
EWA10661
After adjusting the brake pedal free
play, check the operation of thebrake light.
9. Make sure that the drive chain pull- ers are in the same position, the
drive chain slack is correct, and
the drive chain moves smoothly.
EAU23026
Cleaning and lubricating the
drive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must be lubricated
after washing the motorcycle, ridingin the rain or riding in wet areas.
1. Clean the drive chain with kero- sene and a small soft brush.
NOTICE: To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
engine oil or any other lubri-
cants for the drive chain, as they
1. Axle nut
2. Drive chain puller locknut
3. Drive chain slack adjusting bolt
4. Alignment marks
1
2
(a) (b)
3
4
Tightening torques:
Drive chain puller locknut:16 Nm (1.6 m·kgf, 12 ft·lbf)
Axle nut: 129 Nm (12.9 m·kgf, 92 ft·lbf)
Brake torque rod nut:
19 Nm (1.9 m·kgf, 14 ft·lbf)
2RD-9-E0.book 23 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-30
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4. Disconnect the battery coupler.
5. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15132]
6. Connect the battery coupler.
7. Install the battery by installing the
battery band.
8. Install the seat.
9. Turn the key to “ON”.
10. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
The fuse box, which contains the fuses
for the individual circuits, is located un-
der the seat. (See page 3-11.) If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off the electrical circuit in question.
2. Remove the seat. (See page 3-11.)
3. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
1. Battery
2. Battery band
1. Battery coupler
12
1
Specified fuse: 30.0 A1. Fuse box
1
1. Headlight fuse
2. Signaling system fuse
3. Ignition fuse
4. Backup fuse
5. Fuel injection system fuse
6. Parking lighting fuse
7. Spare fuse
12
3 4
5
7
6
2RD-9-E0.book 30 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-35
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12 4. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
5. Install the socket (together with the bulb) by pushing it in and turning it
clockwise until it stops.
6. Install the headlight unit by install- ing the screws.
EAU24361
Front wheel
EAU59600
To remove the front wheel
WARNING
EWA10822
To avoid injury, securely support the
vehicle so there is no danger of itfalling over.
1. Loosen the wheel axle nut.
2. Loosen the wheel axle holder nuts. 3. Place the motorcycle on the cen-
terstand.
4. Disconnect the speedometer ca- ble from the front wheel.
5. Remove the wheel axle nut and the washer.1. Wheel axle nut
1
1. Axle holder nut
1. Speedometer cable
1
1
2RD-9-E0.book 35 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-38
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9. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
TIPThe drive chain does not need to be
disassembled in order to remove andinstall the wheel.
To install the rear wheel1. Install the spacer into left side of the wheel hub.
2. Install the chain pullers and the wheel by inserting the wheel axle
from the left-hand side.
3. Install the drive chain onto the rear sprocket. 4. Install the washer and axle nut.
5. Install the brake rod onto the brake
camshaft lever, and then install the
brake pedal free play adjusting nut
onto the brake rod.
6. Connect the brake torque rod to the brake shoe plate by installing
the bolt, washer and nut.
7. Adjust the drive chain slack. (See page 6-22.)
8. Take the motorcycle off the center- stand so that the rear wheel is on
the ground, and then put the side-
stand down.
9. Tighten the brake torque rod nut and axle nut to the specified
torques.
10. Adjust the brake pedal free play. (See page 6-18.)
WARNING
EWA10661
After adjusting the brake pedal free
play, check the operation of the
brake light.
1. Drive chain
1
Tightening torques:Brake torque rod nut:19 Nm (1.9 m·kgf, 14 ft·lbf)
Axle nut: 129 Nm (12.9 m·kgf, 92 ft·lbf)
2RD-9-E0.book 38 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-39
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EAU25852
TroubleshootingAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15142
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water heaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
2RD-9-E0.book 39 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

MOTORCYCLE CARE AND STORAGE
7-3
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12 including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean- er to remove any remaining dirt.
6. Touch up minor paint damage caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely before storing or covering it.
WARNING
EWA11132
Contaminants on the brakes or tires
can cause loss of control.
Make sure that there is no oil or
wax on the brakes or tires.

If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent. Before riding at higher
speeds, test the motorcycle’s
braking performance and cor-nering behavior.
NOTICE
ECA10801

Apply spray oil and wax spar-
ingly and make sure to wipe off any excess.

Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.

Avoid using abrasive polishing
compounds as they will wearaway the paint.
TIP
Consult a Yamaha dealer for ad-
vice on what products to use.

Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from thelens.
EAU43203
StorageShort-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the motor-
cycle.NOTICE
ECA10811

Storing the motorcycle in a
poorly ventilated room or cover-
ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.

To 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 sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter.
2RD-9-E0.book 3 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

SPECIFICATIONS
8-3
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Rear turn signal light: 12 V, 21.0 W  2
Auxiliary light:
12 V, 4.0 W  1
Meter lighting: 12 V, 1.7 W  4
Neutral indicator light: 12 V, 1.7 W  1
High beam indicator light:
12 V, 1.7 W  1
Turn signal indicator light: 12 V, 1.7 W  1
Fuel level warning light: 12 V, 3.0 W  1
Engine trouble warning light:
12 V, 1.7 W  1Fuses:Main fuse:
30.0 A
Headlight fuse:
15.0 A
Signaling system fuse: 15.0 A
Ignition fuse: 10.0 A
Parking lighting fuse:
7.5 A
Fuel injection system fuse: 7.5 A
Backup fuse: 7.5 A
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10-1
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91011
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INDEX
AAir filter element, replacing ...................... 6-12
Auxiliary light bulb, replacing ................... 6-34BBattery ..................................................... 6-28
Brake and clutch levers, checking and lubricating .............................................. 6-25
Brake fluid, changing ............................... 6-21
Brake fluid level, checking ....................... 6-20
Brake lever ................................................ 3-6
Brake lever free play, adjusting ............... 6-17
Brake light switches ................................. 6-19
Brake pads and shoes, checking............. 6-20
Brake pedal ............................................... 3-6
Brake pedal, checking and lubricating ..... 6-25
Brake pedal height and free play, adjusting ................................................ 6-18CCables, checking and lubricating ............. 6-24
Care ........................................................... 7-1
Catalytic converter ..................................... 3-9
Centerstand and sidestand, checking and lubricating ....................................... 6-26
Clutch lever................................................ 3-5
Clutch lever free play, adjusting .............. 6-16DDecompression lever ............................... 3-11
Dimmer switch ........................................... 3-4
Drive chain, cleaning and lubricating ....... 6-23
Drive chain slack ..................................... 6-22EEngine break-in ......................................... 5-3
Engine idling speed, checking ................. 6-13
Engine oil and oil filter element.................. 6-9 Engine serial number ................................ 9-1
Engine stop switch .................................... 3-5
Engine trouble warning light ...................... 3-3
FFront fork, checking................................. 6-27
Fuel ........................................................... 3-7
Fuel cock ................................................. 3-10
Fuel consumption, tips for reducing .......... 5-3
Fuel level warning light .............................. 3-3
Fuel tank breather/overflow hose .............. 3-9
Fuel tank cap............................................. 3-7
Fuses, replacing ...................................... 6-29HHandlebar switches ................................... 3-4
Hazard switch............................................ 3-5
Headlight bulb, replacing......................... 6-31
High beam indicator light ........................... 3-3
Horn switch ............................................... 3-5IIdentification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-13
Indicator lights and warning lights ............. 3-2KKickstarter ............................................... 3-10MMain switch/steering lock .......................... 3-1
Maintenance and lubricatio
n, periodic....... 6-4
Maintenance, emission control system ..... 6-3
Matte color, caution ................................... 7-1
Model label ................................................ 9-2NNeutral indicator light ................................ 3-2PPanel, removing and installing .................. 6-7 Parking.......................................................5-4
Part locations .............................................2-1
Pass switch ................................................3-4
SSafety information ......................................1-1
Seat ......................................................... 3-11
Shifting .......................................................5-2
Shift pedal ..................................................3-6
Shift pedal, checking................................ 6-19
Shock absorber assemblies, adjusting ....3-12
Sidestand .................................................3-12
Spark plug, checking .................................6-8
Specifications.............................................8-1
Speedometer unit ......................................3-3
Starting the engine.....................................5-1
Starting the engine, trouble........................5-2
Steering, checking ................................... 6-27
Storage ......................................................7-3
Swingarm pivots, lubricating .................... 6-26TTachometer................................................3-4
Tail/brake light bulb, replacing ................. 6-32
Throttle grip and cable, checking and
lubricating ..............................................6-24
Throttle grip free play, checking............... 6-13
Tires ......................................................... 6-14
Tool kit .......................................................6-2
Troubleshooting ....................................... 6-39
Troubleshooting chart ..............................6-40
Turn signal indicator light ...........................3-2
Turn signal light bul b, replacing ............... 6-33
Turn signal switch ......................................3-4VValve clearance ....................................... 6-13
2RD-9-E0.book 1 ページ ２０１３年１１月２８日　木曜日　午後４時１８分