ignition YAMAHA WR 250R 2015 User Guide

PERIODIC MAINTENANCE AND ADJUSTMENT
6-42
1
2
3
4
56
7
8
9
10
11
12
EAU25872
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 charts
represent quick and easy procedures
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.
32D-9-ED.book 42 ページ ２０１４年７月１日　火曜日　午前１０時２分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-43
1
2
3
4
567
8
9
10
11
12
EAU42136
Troubleshooting chartsStarting problems or poor engine performance
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 electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.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 electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
DryWet
Operate the electric starter.
Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
The engine does not start.
Check the ignition.
32D-9-ED.book 43 ページ ２０１４年７月１日　火曜日　午前１０時２分

SPECIFICATIONS
8-2
1
2
3
4
5
6
78
9
10
11
12
Gear ratio: 1st:2.643 (37/14)
2nd: 1.813 (29/16)
3rd:
1.318 (29/22)
4th: 1.040 (26/25)
5th: 0.889 (24/27)
6th:
0.786 (22/28)Chassis:Frame type: Semi double cradle
Caster angle:
26.67 
Trail: 111 mm (4.4 in)Front tire:Type:
With tube
Size: 80/100-21M/C 51P
Manufacturer/model: BRIDGESTONE/TW-301 FRear tire:Type:With tube
Size: 120/80-18M/C 62P
Manufacturer/model:
BRIDGESTONE/TW-302 F
Loading:Maximum load:185 kg (408 lb)
* (Total weight of rider, passenger, cargo and accessories)Tire air pressure (measured on cold
tires):Loading condition:0–90 kg (0–198 lb)
Front:
125 kPa (1.25 kgf/cm
2, 18 psi)
Rear:
175 kPa (1.75 kgf/cm2, 25 psi)
Loading condition: 90–185 kg (198–408 lb)
Front:
150 kPa (1.50 kgf/cm2, 22 psi)
Rear:
200 kPa (2.00 kgf/cm2, 29 psi)
Front wheel:Wheel type:Spoke wheel
Rim size:
21x1.60Rear wheel:Wheel type:Spoke wheel
Rim size:
18x2.15Front brake:Type:Single disc brake
Operation:
Right hand operation Specified brake fluid:
DOT 4
Rear brake:Type:Single disc brake
Operation: Right foot operation
Specified brake fluid:
DOT 4Front suspension:Type:Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 270 mm (10.6 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 270 mm (10.6 in)Electrical system:Ignition system:TCI
Charging system: AC magnetoBattery:Model:YTZ7S
Voltage, capacity: 12 V, 6.0 Ah
32D-9-ED.book 2 ページ ２０１４年７月１日　火曜日　午前１０時２分

SPECIFICATIONS
8-3
1
2
3
4
5
6
789
10
11
12
Headlight:Bulb type: Halogen bulbBulb voltage, wattage  quantity:Headlight:
12 V, 60.0 W/55.0 W
Tail/brake light:
LED
Front turn signal light: 12 V, 10.0 W  2
Rear turn signal light: 12 V, 10.0 W  2
Auxiliary light:
12 V, 5.0 W  1
License plate light: 12 V, 5.0 W  1
Meter lighting: EL (Electroluminescent)
Neutral indicator light:
LED
High beam indicator light: LED
Turn signal indicator light: LED
Fuel level warning light:
LED
Coolant temperature warning light: LED
Engine trouble warning light: LED
Fuses:Main fuse:30.0 A
Headlight fuse: 15.0 A
Signaling system fuse: 10.0 A
Ignition fuse:
7.5 A
Radiator fan motor fuse: 7.5 A
Fuel injection system fuse: 7.5 A
Backup fuse:
7.5 A
32D-9-ED.book 3 ページ ２０１４年７月１日　火曜日　午前１０時２分

10-1
1
2
3
4
5
6
7
8
910
11
12
INDEXAAir filter element and check hose, cleaning .................................................6-17
Auxiliary light bulb, replacing ...................6-36BBattery......................................................6-33
Brake and clutch levers, checking and lubricating ..............................................6-30
Brake fluid, changing ...............................6-27
Brake fluid level, checking .......................6-26
Brake lever ...............................................3-10
Brake lever free play, adjusting................6-23
Brake light switches .................................6-25
Brake pedal ..............................................3-10
Brake pedal, checking and lubricating .....6-30CCables, checking and lubricating .............6-29
Care ...........................................................7-1
Catalytic converter ...................................3-13
Clutch lever ................................................3-9
Clutch lever free play, adjusting ...............6-22
Coolant.....................................................6-14
Coolant temperature warning light .............3-2DDimmer switch ...........................................3-9
Drive chain, cleaning and lubricating .......6-28
Drive chain slack ......................................6-27EEngine break-in ..........................................5-3
Engine idling speed..................................6-19
Engine oil and oil filter element ................6-12
Engine serial number .................................9-1
Engine stop switch .....................................3-9
Engine trouble warning light.......................3-3 EXUP system .......................................... 3-18
FFront and rear brake
pads, checking ....... 6-25
Front fork, adjusting ................................. 3-14
Front fork, bleeding.................................. 3-16
Front fork, checking ................................. 6-31
Fuel.......................................................... 3-11
Fuel consumption, tips for reducing........... 5-3
Fuel level warning light .............................. 3-2
Fuel tank cap ........................................... 3-11
Fuses, replacing ...................................... 6-34HHandlebar switches ................................... 3-8
Headlight bulb, replacing ......................... 6-35
Helmet holder .......................................... 3-14
High beam indicator light ........................... 3-2
Horn switch ................................................ 3-9IIdentification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-19
Indicator lights and warning lights ............. 3-2LLicense plate light bulb, replacing ........... 6-37MMain switch/steering lock........................... 3-1
Maintenance and lubrication, periodic ....... 6-4
Maintenance, emission control system...... 6-3
Matte color, caution ................................... 7-1
Model label ................................................ 9-1
Multi-function display ................................. 3-3NNeutral indicator light ................................. 3-2PPanels, removing and installing ................. 6-8 Parking ...................................................... 5-4
Part locations ............................................ 2-1
SSafety information ..................................... 1-1
Seat ......................................................... 3-13
Shifting ...................................................... 5-2
Shift pedal ............................................... 3-10
Shift pedal, checking ............................... 6-24
Shock absorber assembly, adjusting ...... 3-17
Sidestand ................................................ 3-19
Sidestand, checking an
d lubricating........ 6-31
Spark plug, checking ............................... 6-11
Specifications ............................................ 8-1
Starting the engine .................................... 5-1
Start switch................................................ 3-9
Steering, checking................................... 6-32
Storage...................................................... 7-3
Supporting the motorcycle ...................... 6-38
Swingarm pivots, lubricating ................... 6-31TTail/brake light ......................................... 6-36
Throttle grip and cable, checking and lubricating ............................................. 6-29
Throttle grip free play, checking .............. 6-19
Tires ........................................................ 6-20
Tool kit....................................................... 6-2
Troubleshooting ...................................... 6-42
Troubleshooting charts............................ 6-43
Turn signal indicator light .......................... 3-2
Turn signal light bulb, replacing .............. 6-37
Turn signal switch ..................................... 3-9VValve clearance....................................... 6-20
Vehicle identification number .................... 9-1
32D-9-ED.book 1 ページ ２０１４年７月１日　火曜日　午前１０時２分