2016 YAMAHA SR400 battery

Table of contents
Checking the steering ....................6-30
Checking the wheel bearings ........6-31
Battery ...........................................6-31
Replacing the fuses .......................6-33
Replacing the headlight bulb .........6-35
Replacing the auxiliary light bulb ...........................................6-36
Replacing the tail/brake light bulb ............................................6-37
Replacing a turn signal light
bulb ............................................6-38
Front wheel .............. ......................6-39
Rear wheel ............................ ........6-40
Troubleshooting .......... ...................6-42
Troubleshooting chart . ...................6-43
Motorcycle care and storage ...........7-1
Matte color caution ..........................7-1
Care .................................................7-1
Storage ............................................7-4
Specifications ....................................8-1
Consumer information .....................9-1
Identification numbers .....................9-1
Index .................................................10-1
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2-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
EAU63371
Left view
1. Engine oil dipstick (page 6-9)
2. Engine oil filler cap (page 6-9)
3. Fuel tank cap (page 3-8)
4. Fuel cock (page 3-11)
5. Battery (page 6-31)
6. Fuse (page 6-33)
7. Shock absorber assembly spring preload adjusting ring (page 3-13)
8. Shift pedal (page 3-6)
1, 2 4
5, 63
7
8
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Instrument and control functions
3-2
1
2
3
4
5
6
7
8
9
10
11
12
13
14 1. Insert the key.
2. With the key in the “LOCK” posi-
tion, push the key in and turn it to
“OFF”.
EAU59680 (Parking)
The hazard lights and turn signal lights
can be turned on, but all other electrical
systems are off. The key can be re-
moved.
The steering must be locked before the
key can be turned to “ ”.
NOTICE
ECA20760
Using the hazard or turn signal
lights for an extended length of time
may cause the battery to discharge.
EAU49398
Indicator light s and warning
lights
EAU11022Turn signal indicator light “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU11061Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11354Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
2.2 L (0.58 US gal, 0.48 Imp.gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. The warning light should come
on for a few seconds, and then go off.
1. Engine trouble warning light “ ”
2. Fuel level warning light “ ”
3. Neutral indicator light “ ”
4. High beam indicator light “ ”
5. Turn signal indicator light “ ”
4
2
153
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Periodic maintenance and adjustment
6-31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EAU23292
Checking the wheel bearings
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU40447
Battery
The battery is located under the seat.
(See page 3-13.)
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the electro-
lyte or to add distilled water. However,
the battery coupler connection needs to
be checked to make sure that it is se-
curely connected.
WARNING
EWA10761
Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID. EXTERNAL: Flush with plenty of water.
INTERNAL: Drink large quan- tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15 minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
1. Battery
1
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Periodic maintenance and adjustment
6-32
1
2
3
4
5
6
7
8
9
10
11
12
13
14 sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
To charge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quickly
if the vehicle is equipped with optional
electrical accessories.
NOTICE
ECA16522
To charge a VRLA (Valve Regulated
Lead Acid) battery, a special (con-
stant-voltage) battery charger is re-
quired. Using a conventional battery
charger will damage the battery.
To store the battery 1. If the vehicle will not be used for more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removing the
battery, be sure the key is
turned to “OFF” before discon-
necting the coupler.
[ECA16323]
2. If the battery will be stored for more than two months, check it at least
once a month and fully charge it if
necessary.
3. Fully charge the battery before in- stallation. NOTICE: When install-
ing the battery, be sure the key
is turned to “OFF” before con- necting the coupler.
[ECA16931]
NOTICE
ECA16531
Always keep the battery charged.
Storing a discharged battery can
cause permanent battery damage.
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Periodic maintenance and adjustment
6-33
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EAU59443
Replacing the fuses
The main fuse is located inside the bat-
tery coupler. (See page 6-31.)
If the main fuse is blown, replace it as
follows. 1. Turn the key to “OFF” and turn off all electrical circuits.
2. Remove the seat. (See page 3-13.)
3. Remove the battery by removing the battery band.
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 circ uits, is located un-
der the seat.
1. Battery coupler
2. Main fuse
3. Spare main fuse
1. Battery
2. Battery band
3
1
2
12
1. Battery coupler
Specified fuse: 30.0 A
1
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Periodic maintenance and adjustment
6-43
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EAU67930
Troubleshooting chart
1. FuelThere is enough fuel.
There is no fuel.Supply fuel.
Check the battery.
The turn signal
flashes brightly.
The turn signal does
not flash or is weak.
The engine does not
start.
Check the battery.
Wipe off with a dry
cloth and correct the
spark plug gap, or
replace the spark
plug.
Check the battery
lead connections,
and have a Yamaha
dealer charge the
battery if necessary.
Operate the
kickstarter.
If the engine does
not start, check the
ignition.
2. BatteryThe battery is good.
3. IgnitionWet
Dry
There is compression.
There is no
compression.
Operate the
kickstarter.
The engine does not start.
Have a Yamaha dealer check the vehicle.
Have a Yamaha dealer check the vehicle.
The engine does not
start.
Check the
compression.Have a Yamaha
dealer check the
vehicle.
Remove the spark
plug and check
the electrodes.
With the key in the on
position, operate the
turn signal switch.
Operate the
kickstarter.
Check the fuel level
in the fuel tank.
4. Compression
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Motorcycle care and storage
7-4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EAU43204
Storage
Short-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.
2. Fill up the fuel tank and add fuel stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to pro- tect 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 spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
WARNING! To prevent dam-
age or injury from sparking,
make sure to ground the
spark plug electrodes while
turning the engine
over.
[EWA10952]
e. Remove the spark plug capfrom the spark plug, and then
install the spark plug and the
spark plug cap.
4. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the sides-
tand/centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0  C (30 F) or more than 30
 C (90 F)]. For more information
on storing the battery, see page
6-31.
TIP
Make any necessary repairs before
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