key YAMAHA SR400 2014 User Guide

PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
1
2
3
4
567
8
9
10
11
12
EAU59370
Owner’s tool kitThe owner’s tool kit is located inside the
tool box.
To access the owner’s tool kit, slide the lock cover open, insert the key into the
lock, and then turn it 1/4 turn clockwise.
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
TIPIf you do not have the tools or experi-
ence required for a particular job, havea Yamaha dealer perform it for you.
1. Unlock.
2. Lock cover
1. Owner’s tool kit
1
2
1
2RD-9-E0.book 2 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
1
2
3
4
56
7
8
9
10
11
12
EAU59460
Removing and installing the
panelThe panel shown needs to be removed
to perform some of the maintenance
jobs described in this chapter. Refer to
this section each time the panel needs
to be removed and installed.TIPThe panel on the left side is removable
using the key. However there is no
need to remove this panel for mainte-nance jobs described in this chapter.
EAU19152
Panel A
To remove the panelRemove the bolt, and then pull the pan-
el off as shown.
To install the panelPlace the panel in the original position,
and then install the bolt.
1. Panel A
1
1. Panel A
2. Bolt
3. Washer1 2
3
2RD-9-E0.book 7 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
1
2
3
4
56
7
8
9
10
11
12 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 batterycharger 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 cancause permanent battery damage.
EAU59441
Replacing the fusesThe main fuse is located inside the bat-
tery coupler. (See page 6-28.)
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 3-11.)
3. Remove the battery by removing the battery band.1. Battery coupler
2. Main fuse
3. Spare main fuse
3
1
2
2RD-9-E0.book 29 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-30
1
2
3
4
567
8
9
10
11
12
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
6-31
1
2
3
4
56
7
8
9
10
11
12 possibly a fire.
[EWA15132]
4. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
5. If a fuse immediately blows again, have a Yamaha dealer check the
electrical system.
EAU23799
Replacing the headlight bulbThis model is equipped with a halogen
bulb headlight. If the headlight bulb
burns out, replace it as follows.NOTICE
ECA10651
Take care not to damage the follow-
ing parts:
Headlight bulb
Do not touch the glass part of
the headlight bulb to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosity
of the bulb, and the bulb life will
be adversely affected. Thor-
oughly clean off any dirt and fin-
gerprints on the headlight bulb
using a cloth moistened with al-
cohol or thinner.

Headlight lens
Do not affix any type of tinted
film or stickers to the headlight
lens.
Do not use a headlight bulb of awattage higher than specified. 1. Remove the headlight unit by re-
moving the screws.
Specified fuses:Main fuse:30.0 A
Signaling system fuse: 15.0 A
Headlight fuse:
15.0 A
Ignition fuse: 10.0 A
Backup fuse: 7.5 A
Fuel injection system fuse:
7.5 A
Parking lighting fuse: 7.5 A
1. Do not touch the glass part of the bulb.
1. Screw1
2RD-9-E0.book 31 ページ ２０１３年１１月２８日　木曜日　午後４時１８分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-40
1
2
3
4
567
8
9
10
11
12
EAU60030
Troubleshooting chart
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Operate the kickstarter.4. Compression
There is compression.
There is no compression.
Have a Yamaha dealer check the vehicle.The engine does not start.
Have a Yamaha dealer check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug. Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the kickstarter.
If the engine does not
start, check the ignition.
With the key in the on
position, operate the turn
signal switch.2. Battery
The turn signal flashes
brightly.
The turn signal does
not flash or is weak.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
DryWet
Operate the kickstarter.
2RD-9-E0.book 40 ページ ２０１３年１１月２８日　木曜日　午後４時１８分