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4. If the drive chain slack is incorrect,
adjust it as follows.
 
EAU22830 
To adjust the drive chain slack 
1. Loosen the brake pedal free play
adjusting nut.2. Loosen the axle nut.
3. To tighten the drive chain, turn the
adjusting plate on each side of the
swingarm in direction (a). To loos-
en the drive chain, turn the adjust-
ing plate on each side of the
swingarm in direction (b), and then
push the rear wheel forward.
NOTE:
 
Make sure that both adjusting plates
are in the same position for proper 
wheel alignment.
CAUTION:
 
 ECA10570 
Improper drive chain slack will over-
load the engine 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 within the 
specified limits.  
4. Tighten the axle nut to the speci-
fied torque.
5. Adjust the brake pedal free play.
(See page 6-18.)
WARNING
 
EWA10660 
After adjusting the brake pedal free
play, check the operation of the 
brake light. 
1. Drive chain slack
1
 
1. Brake pedal free play adjusting nut
2. Axle nut
3. Adjusting plate32
1
(a)
(b) 
Tightening torque:  
Axle nut:
90 Nm (9.0 m·kgf, 65 ft·lbf) 
         
        
        
     
        
        Page 55 of 80

 
PERIODIC MAINTENANCE AND MINOR REPAIR 
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EAU23010 
Lubricating the drive chain  
The drive chain must be cleaned and
lubricated at the intervals specified in
the General 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.
CAUTION:
 
 ECA10580 
The drive chain must be lubricated
after washing the motorcycle or 
riding in the rain. 
1. Remove all dirt and mud from the
drive chain with a brush or cloth.
NOTE:
 
For a thorough cleaning, have a Yama-
ha dealer remove the drive chain and 
soak it in solvent.
2. Spray Yamaha Chain and Cable
Lube or a high-quality spray-type
drive chain lubricant on both sides
and on the middle of the chain,
making sure that all side plates
and rollers have been sufficientlyoiled. 
EAU23100 
Checking and lubricating the
cables  
The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING
 
EWA10720 
Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafe 
conditions.  
Recommended lubricant:
Engine oil 
         
        
        
     
        
        Page 58 of 80
 
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CAUTION:
 
 ECA10590 
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re- 
pair it. 
EAU23280 
Checking the steering  
Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING
 
EWA10750 
Securely support the vehicle so that 
there is no danger of it falling over. 
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering. 
         
        
        
     
        
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CAUTION:
 
 ECA10680 
Do not overtighten the screws, oth- 
erwise the lens may break. 
EAU24350 
Supporting the motorcycle  
Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability. 
To service the front wheel 
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand. 
To service the rear wheel 
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing
a jack either under each side of theframe in front of the rear wheel or under
each side of the swingarm. 
         
        
        
     
        
        Page 69 of 80

 
PERIODIC MAINTENANCE AND MINOR REPAIR 
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EAU25962 
Troubleshooting chart 
WARNING
 
EWA10840 
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in 
the fuel tank.1. Fuel
There is
enough fuel.
There is
no fuel.
 Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the
electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer 
check the vehicle.
Remove the spark plug 
and check the electrodes.3. Ignition
Wet
Dry
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. Have a 
Yamaha dealer check the vehicle.The engine does not start.
Check the battery.Open the throttle halfway and 
operate the electric starter.
Operate the
electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check fluid, recharge, 
check connections. 
         
        
        
     
        
        Page 73 of 80

 
MOTORCYCLE CARE AND STORAGE 
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from the spark plug, and then
install the spark plug and the
spark plug cap.
WARNING
 
EWA10950 
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning 
the engine over. 
6. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
7. 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.
8. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
9. Remove the battery and fully
charge it. Store it in a cool, dryplace 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 in-
formation on storing the battery,
see page 6-27.
NOTE:
 
Make any necessary repairs before 
storing the motorcycle. 
         
        
        
     
        
          
   
    
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