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PERIODIC MAINTENANCE AND ADJUSTMENT
6-44
6
EAU25872
Troubleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during 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
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system,  do
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot lig hts from water heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plod e, causin g severe injury or prop-
erty  dama ge.U1CWE4E0.book  Page 44  Wednesday, August 6, 2014  2:59 PM 
     
        
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-45
6
EAU42505
Troubleshootin g chartsStartin g prob lems or poor en gine 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.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
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.
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 engine does not start.
Check the ignition.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge 
the battery if necessary.
DryWet
Operate the electric starter.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-46
6En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may  be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press d own on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
Wait until the 
engine has cooled.
Check the coolant level in the 
reservoir and radiator.
The coolant level 
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again, 
have a 
Yamaha dealer check 
and repair the cooling system.
There is
leakage.
There is 
no leakage.
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10-1
10
INDEX
AABS (for ABS models) .......................... 3-14
ABS warning light (for ABS models) ....... 3-7
Air filter element, replacing ................... 6-18
Auxiliary light bulb ................................ 6-38BBattery .................................................. 6-34
Brake and clutch levers, checking and lubricating........................................... 6-31
Brake and shift pedals, checking and  lubricating........................................... 6-30
Brake fluid, changing............................ 6-27
Brake fluid level, checking.................... 6-26
Brake lever............................................ 3-14
Brake lever free play, checking ............ 6-24
Brake light switches ............................. 6-25
Brake pedal .......................................... 3-14CCables, checking and lubricating ......... 6-30
Care ........................................................ 7-1
Catalytic converter ............................... 3-18
Centerstand and sidestand, checking  and lubricating ................................... 6-32
Clutch lever........................................... 3-13
Clutch lever free play, adjusting ........... 6-23
Coolant ................................................. 6-15
Coolant temperature warning light ......... 3-4
Cowlings and panels, removing and  installing ............................................... 6-8DDimmer switch...................................... 3-12
Drive chain, cleaning and lubricating ... 6-29
Drive chain slack .................................. 6-28
EEngine break-in ...................................... 5-3
Engine idling speed.............................. 6-19
Engine oil and oil filter cartridge........... 6-12
Engine serial number ............................. 9-1
Engine stop switch............................... 3-12
Engine trouble warning light .................. 3-7FFront and rear brake pads, checking ... 6-25
Front fork, checking ............................. 6-33
Fuel ...................................................... 3-16
Fuel consumption, tips for reducing ...... 5-3
Fuel tank breather hose and overflow hose ................................................... 3-17
Fuel tank cap........................................ 3-15
Fuses, replacing ................................... 6-35HHandlebar position, adjusting .............. 3-20
Handlebar switches ............................. 3-12
Hazard switch ...................................... 3-13
Headlight bulb, replacing ..................... 6-37
Helmet holder....................................... 3-19
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-12IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-23
Immobilizer system ................................ 3-1
Immobilizer system indicator light ......... 3-7
Indicator lights and warning lights ......... 3-4LLicense plate light bulb, replacing ....... 6-40MMain switch/steering lock ...................... 3-2 Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control 
system .................................................. 6-3
Matte color, caution................................ 7-1
Model label ............................................. 9-1
Multi-function meter unit ........................ 3-8
NNeutral indicator light ............................. 3-4OOil level warning light .............................. 3-4PParking.................................................... 5-4
Part locations.......................................... 2-1
Pass switch........................................... 3-12RRear view mirrors .................................. 3-21SSafety information................................... 1-1
Seat....................................................... 3-18
Shifting.................................................... 5-2
Shift pedal............................................. 3-13
Shock absorber assembly, adjusting ... 3-21
Sidestand.............................................. 3-22
Spark plugs, checking .......................... 6-11
Specifications ......................................... 8-1
Starting the engine ................................. 5-1
Start switch ........................................... 3-12
Steering, checking ................................ 6-33
Storage ................................................... 7-4
Storage compartment........................... 3-20
Swingarm pivots, lubricating ................ 6-32TTail/brake light bulb, replacing ............. 6-39
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