5-5
OPERATION AND IMPORTANT RIDING POINTS
1
2
3
4
5
6
7
8
9
EAU00424
Tips for reducing fuel con-
sumption
Your motorcycle’s fuel consumption
depends to a large extent on your
riding style. The following tips can help
reduce fuel consumption:
l
Warm up the engine before
riding.
l
Turn off the starter (choke) as
soon as possible.
l
Shift up swiftly and avoid high en-
gine speeds during acceleration.
l
Do not double-clutch or rev the
engine while shifting down and
avoid high engine speeds with no
load on the engine.
l
Turn off the engine instead of let-
ting it idle for an extended length
of time, i.e. in traffic jams, at traffic
lights or railroad crossings.
EAU01128
Engine break-in
There is never a more important period
in the life of your motorcycle than the
period between zero and 1,600 km.
For this reason we ask that you care-
fully read the following material. Be-
cause the engine is brand new, you
must not put an excessive load on it for
the first 1,600 km. The various parts in
the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full throttle operation, or any condition
which might result in excessive heat-
ing of the engine, must be avoided.
EAU01171
0 ~ 1,000 km
Avoid operation above 1/3 throttle.
1,000 ~ 1,600 km
Avoid cruising speeds in excess of
1/2 throttle.
EC000056
CAUTION:
After 1,000 km of operation, be sure
to replace the engine oil, oil filter
and final gear oil.
1,600 km and beyond
Proceed with normal riding.
EC000049
CAUTION:
If any engine trouble should occur
during the break-in period, consult
a Yamaha dealer immediately.
Tool kit ................................................................ 6-1
Periodic maintenance and lubrication ................ 6-2
Panel removal and installation............................ 6-5
Panel A ............................................................... 6-6
Panel B ............................................................... 6-7
Spark plugs ........................................................ 6-7
Engine oil............................................................ 6-9
Final gear oil ..................................................... 6-11
Air filter ............................................................. 6-12
Carburetor adjustment...................................... 6-13
Idle speed adjustment ...................................... 6-14
Throttle cable free play inspection .................... 6-15
Valve clearance adjustment.............................. 6-15
Tires ................................................................. 6-15
Wheels ............................................................. 6-17
Clutch lever free play adjustment ..................... 6-18
Front brake lever free play
adjustment ...................................................... 6-19
Rear brake pedal height and free play
adjustment ...................................................... 6-20
Brake light switch adjustment ........................... 6-21
Checking the front brake pads and
rear brake shoes ............................................ 6-21
Inspecting the brake fluid level.......................... 6-22
Brake fluid replacement .................................... 6-22
Cable inspection and lubrication ....................... 6-23
Throttle cable and grip lubrication..................... 6-23
Brake and shift pedal lubrication....................... 6-23
Brake and clutch lever lubrication ..................... 6-24
Sidestand lubrication ........................................ 6-24
Front fork inspection ......................................... 6-25
Steering inspection ........................................... 6-25
Wheel bearings ................................................. 6-26
Battery .............................................................. 6-26
Fuse replacement ............................................. 6-27
Headlight bulb replacement .............................. 6-28
Turn signal and taillight bulb replacement......... 6-29
Supporting the motorcycle ................................ 6-30
Front wheel removal ......................................... 6-31
Front wheel installation ..................................... 6-31
Rear wheel removal .......................................... 6-32
Rear wheel installation...................................... 6-33
Troubleshooting ................................................ 6-34
Troubleshooting chart ....................................... 6-35
PERIODIC MAINTENANCE AND MINOR REPAIR
6
6-8
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
5
6
7
8
9
1. Spark plug wrench
Inspection
The spark plug is an important engine
component and is easy to inspect. The
condition of the spark plug can indicate
the condition of the engine. Normally,
all spark plugs from the same engine
should have the same color on the
white insulator around the center elec-
trode. The ideal color at this point is a
medium-to-light tan color for a motor-
cycle that is being ridden normally. If
one spark plug shows a distinctly dif-
ferent color, there could be something
wrong with the engine. Do not attempt
to diagnose such problems yourself.
Instead, take the motorcycle to a
Yamaha dealer. You should periodi-cally remove and inspect the spark
plugs because heat and deposits will
cause any spark plug to slowly break
down and erode. If electrode erosion
becomes excessive, or if carbon and
other deposits are excessive, you
should replace the spark plug with the
specified plug.
Specified spark plug:
DPR7EA-9 (NGK)
X22EPR-U9 (DENSO)
a. Spark plug gap
Installation
1. Measure the electrode gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifi-
cation.
2. Clean the gasket surface. Wipe
off any grime from the threads.
3. Install the spark plug and tighten it
to the specified torque. Spark plug gap:
0.8 ~ 0.9 mm
6-9
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
5
6
7
8
9
NOTE:
If a torque wrench is not available
when you are installing a spark plug, a
good estimate of the correct torque is
1/4 to 1/2 turn past finger tight. Have
the spark plug tightened to the speci-
fied torque as soon as possible.Tightening torque:
Spark plug:
20 Nm (2.0 m·kg)
1. Maximum level mark
2. Minimum level mark
EAU01326*
Engine oil
Oil level inspection
1. Place the motorcycle on a level
place and hold it in an upright po-
sition. Warm up the engine for
several minutes.
NOTE:
Be sure the motorcycle is positioned
straight up when checking the oil level.
A slight tilt toward the side can result in
false readings.
1. Engine oil drain bolt
2. With the engine stopped, check
the oil level through the level win-
dow located at the lower part of
the left side crankcase cover.
NOTE:
Wait a few minutes until the oil level
settles before checking.
3. The oil level should be between
the maximum and minimum
marks. If the level is low, fill the
engine with sufficient oil to the
specified level.
6-12
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
NOTE:“GL-4” is a quality and additive rating.
Hypoid gear oils rated “GL-5” or “GL-6”may also be used.
5. Install and tighten the filler bolt to
the specified torque.
6. After replacing the final gear oil,
be sure to check for oil leakage. Final gear oil quantity:
0.19 L
Recommended oil:
SAE 80 API GL-4 Hypoid gear oil
If desired, an SAE 80W90 hypoid
gear oil may be used for all
conditions.
Tightening torque:
Oil filler bolt:
23 Nm (2.3 m·kg)
1. Air filter case cover
2. Screw (´ 3)
EAU00586*
Air filterThe air filter should be cleaned at the
specified intervals. It should be
cleaned more frequently if you are
riding in unusually wet or dusty areas.
1. Remove the air filter case cover
by removing the screws.
2. Remove the air filter.
3. Tap the air filter lightly to remove
most of the dust and dirt. Blow out
the remaining dirt with com-
pressed air as shown. If the air fil-
ter is damaged, replace it.
6-21
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
1. Brake light switch
2. Adjusting nut
EAU00713
Brake light switch adjustmentThe rear brake light switch is activated
by the brake pedal and is properly ad-
justed when the brake light comes on
just before braking takes effect. To ad-
just the rear brake light switch, hold the
switch body so it does not rotate while
turning the adjusting nut. Turn the ad-
justing nut in direction a to make the
brake light come on earlier. Turn the
adjusting nut in direction b to make
the brake light come on later.
1. Wear indicator grooves
EAU00720
Checking the front brake
pads and rear brake shoes
EAU01119
Front brake
Wear indicator grooves are provided
on each brake pad. These indicators
allow checking of brake pad wear with-
out disassembling the brake. Inspect
the grooves. If they have almost disap-
peared, ask a Yamaha dealer to re-
place the pads.
1. Wear limit line
2. Wear indicator
EAU00727
Rear brake
Apply the brake and inspect the wear
indicator.
If the indicator reaches the wear limit
line, ask a Yamaha dealer to replace
the shoes.
6-27
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9Battery storage
When the motorcycle is not used for a
month or longer, remove the battery,
fully charge it and store it in a cool, dry
place.
EC000102
CAUTION:l
Completely recharge the bat-
tery before storing. Storing a
discharged battery can cause
permanent battery damage.
l
Use a battery charger designed
for a sealed-type (MF) battery.
Using a conventional battery
charger will cause battery
damage. If you do not have a
sealed-type battery charger,
contact your Yamaha dealer.
l
Always make sure the connec-
tions are correct when reinstall-ing the battery.
1. Fuse block
2. Main fuse
3. Spare fuse
EAU00825*
Fuse replacementThe fuses are located behind panel B.
(See page 6-5 for panel removal pro-
cedures.)
If a fuse is blown, turn off the main
switch and the switch of the circuit in
question. Install a new fuse of proper
amperage. Turn on the switches and
see if the electrical device operates. If
the fuse immediately blows again, con-
sult a Yamaha dealer.
1. Ignition fuse
2. Signaling system fuse
3. Headlight fuse
4. Carburetor heater fuse
5. Spare fuse
EC000103
CAUTION:
Do not use fuses of higher amper-
age rating than those recommend-
ed. Substitution of a fuse of
improper rating can cause exten-
sive electrical system damage andpossibly a fire.
6-28
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9 Specified fuses:
Main fuse: 30 A
Ignition fuse: 10 A
Signaling system fuse: 10 A
Headlight fuse: 15 A
Carburetor heater fuse: 15 A
1. Screw (´ 2)
EAU00833
Headlight bulb replacementThis motorcycle is equipped with a
quartz bulb headlight.
If the headlight bulb burns out, replace
the bulb as follows:
1. Remove the headlight unit
screws.
2. Remove the connectors, the
headlight unit and then the bulb
cover.
1. Bulb holder3. Turn the bulb holder counter-
clockwise to remove it and re-
move the defective bulb.
EW000119
WARNING
Keep flammable products and your
hands away from a bulb while it is
on, as it is hot. Do not touch a bulbuntil it cools down.
4. Put a new bulb into position and
secure it in place with the bulb
holder.