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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU17710
Periodic maintenance and lubrication chart
NOTE:
The annual checks must be performed every year, except if a kilometer-based maintenance is performed in-
stead.
From 30,000 km, repeat the maintenance intervals starting from 6,000 km.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×
1,000 km)
ANNUAL
CHECK
1 6 12 18 24
1*
Fuel line
Check fuel hoses and vacuum hose for cracks or dam-
age.
√
√
√
√
√
2
Spark plugs
Check condition.
Clean and regap.
√
√
Replace.
√
√
3*
Valves
Check valve clearance.
Adjust.
√
√
√
√
4
Air filter element
Clean.
√
√
Replace.
√
√
5
Clutch
Check operation.
Adjust.
√
√
√
√
√
6*
Front brake
Check operation, fluid level and vehicle for fluid leak-
age. (See NOTE following this chart.)
√
√
√
√
√
√
Replace brake pads. Whenever worn to the limit
7*
Rear brake
Check operation and adjust brake pedal free play.
√
√
√
√
√
√
Replace brake shoes. Whenever worn to the limit
8*
Brake hose
Check for cracks or damage.
√
√
√
√
√
Replace. (See NOTE following this chart.) Every 4 years
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9 To check the spark plugs
1. Check that the porcelain insulator
around the center electrode on
each spark plug is a medi-
um-to-light tan (the ideal color
when the vehicle is ridden normal-
ly).
2. Check that all spark plugs installed
in the engine have the same color.
NOTE:
If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the vehicle.
3. Check each spark plug for elec-trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the surface of the spark pluggasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
NOTE:
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.
4. Install the spark plug cap.
1. Spark plug wrench
1
Specified spark plug:
NGK/CR7HSA
DENSO/U22FSR-U
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
1
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9 ft·lbf)
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EAU25891
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 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.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.