5-5
EAU00436
Engine break-inThere is never a more important peri-
od in the life of your motorcycle than
the period between zero and 1,000
km. For this reason we ask that you
carefully read the following material.
Because the engine is brand new,
you must not put an excessive load
on it for the first 1,000 km. The vari-
ous parts in the engine wear and pol-
ish themselves to the correct operat-
ing clearances. During this period,
prolonged full throttle operation, or
any condition which might result in
excessive heating of the engine,
must be avoided.
EAU00440
0 ~ 150 km
Avoid operation above 4,000 r/min.
Stop the engine and let it cool for 5 to
10 minutes after every hour of opera-
tion. Vary the speed of the motorcy-
cle from time to time. Do not operate
it at one set throttle position.
150 ~ 500 km
Avoid prolonged operation above
5,000 r/min. Rev the motorcycle
freely through the gears, but do not
use full throttle at any time.
500 ~ 1,000 km
Avoid prolonged full throttle opera-
tion. Avoid cruising speeds in excess
of 6,000 r/min.
OPERATION AND IMPORTANT RIDING POINTS
1
2
3
45
6
7
8
9
EAU00424
Tips for reducing fuel
consumptionYour motorcycleÕs fuel consumption
depends to a large extent on your rid-
ing style. The following tips can help
reduce fuel consumption:
8Warm up the engine before rid-
ing.
8Turn off the starter (choke) as
soon as possible.
8Shift up swiftly and avoid high
engine speeds during accelera-
tion.
8Do not double-clutch or rev the
engine while shifting down and
avoid high engine speeds with
no load on the engine.
8Turn off the engine instead of let-
ting it idle for an extended length
of time, i.e. in traffic jams, at traf-
fic lights or railroad crossings.
4PT-9-E6 (ENG) 1~5 12/27/00 1:28 PM Page 36
PERIODIC MAINTENANCE AND MINOR REPAIR
Tool kit ...................................................................6-1
Periodic maintenance and lubrication chart ...........6-3
Cowling and panel removal and installation...........6-6
Cowling A ...............................................................6-7
Panel A, B ..............................................................6-7
Spark plug ..............................................................6-8
Engine oil .............................................................6-10
Air filter .................................................................6-12
Carburetor adjustment .........................................6-13
Idle speed adjustment ..........................................6-14
Throttle cable free play adjustment ......................6-14
Valve clearance adjustment .................................6-15
Tires .....................................................................6-15
Wheels .................................................................6-17
Clutch lever free play adjustment.........................6-18
Front brake lever free play adjustment ................6-18
Rear brake pedal height adjustment ....................6-19
Brake light switch adjustment ..............................6-20
Checking the front and rear brake pads...............6-20
Inspecting the brake fluid level.............................6-21
Brake fluid replacement .......................................6-22
Drive chain slack check .......................................6-22
Drive chain slack adjustment ...............................6-23Drive chain lubrication............................................6-23
Cable inspection and lubrication ............................6-24
Throttle cable and grip lubrication ..........................6-24
Brake and shift pedal lubrication ............................6-25
Brake and clutch lever lubrication ..........................6-25
Sidestand lubrication..............................................6-25
Rear suspension lubrication...................................6-26
Front fork inspection ..............................................6-26
Steering inspection ................................................6-27
Wheel bearings ......................................................6-27
Battery....................................................................6-28
Fuse replacement ..................................................6-29
Headlight bulb replacement ...................................6-29
Turn signal light bulb replacement .........................6-31
Taillight bulb replacement ......................................6-32
Supporting the motorcycle .....................................6-32
Front wheel removal ..............................................6-33
Front wheel installation ..........................................6-34
Rear wheel removal ...............................................6-35
Rear wheel installation ...........................................6-36
Troubleshooting .....................................................6-36
Troubleshooting chart ............................................6-37
6
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 1
6-5
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU03884
NOTE:
8The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8Hydraulic brake service
9Regularly check and, if necessary, correct the brake fluid level.
9Every two years replace the internal components of the brake master cylinders and calipers, and change the
brake fluid.
9Replace the brake hoses every four years and if cracked or damaged.20
*Rear suspension relay
arm and connecting arm
pivoting points¥Check operation.ÖÖÖÖ
¥Lubricate with molybdenum disulfide grease.ÖÖ
21*Carburetor¥Check starter (choke) operation.
¥Adjust engine idling speed.ÖÖÖÖÖÖ
22Engine oil¥Change.ÖÖÖÖÖÖ
23Engine oil filter element¥Replace.ÖÖÖ
24*Front and rear brake
switches¥Check operation.ÖÖÖÖÖÖ
25Moving parts and cables¥Lubricate.ÖÖÖÖÖ
26*Lights, signals and
switches¥Check operation.
¥Adjust headlight beam.ÖÖÖÖÖÖ NO.ITEMCHECK OR MAINTENANCE JOBODOMETER READING (´ 1,000 km)
ANNUAL
CHECK
110203040
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 6
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.
The ideal color on the white insulator
around the center electrode is a
medium-to-light tan color for a motor-
cycle that is being ridden normally.
Do not attempt to diagnose such
problems yourself. Instead, take the
motorcycle to a Yamaha dealer. You
should periodically remove and
inspect the spark plug because heat
and deposits will cause any spark
plug to slowly break down and erode.
If electrode erosion becomes exces-
sive, or if carbon and other deposits
are excessive, you should replace
the spark plug with the specified plug.Installation
1.Measure the electrode gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
2.Clean the gasket surface. Wipe
off any grime from the threads.
3.Install the spark plug and tighten
it to the specified torque.
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
specified torque as soon as possible.4.Install the spark plug cap.
6-9
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
Specified spark plug:
DPR8EA-9 or
DPR9EA-9 (NGK)
Spark plug gap:
0.8 ~ 0.9 mmTightening torque:
Spark plug:
17.5 Nm (1.75 m0kg)
1
1.Spark plug gap
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 10
EAU00629
Carburetor adjustmentThe carburetor is a vital part of the
engine and requires very sophisticat-
ed adjustment. Most adjustments
should be left to a Yamaha dealer
who has the professional knowledge
and experience to do so. However,
the following may be serviced by the
owner as part of routine mainte-
nance.
EC000094
cCThe carburetor was set at the
Yamaha factory after many tests. If
the settings are changed, poor
engine performance and damage
may result.
6-13
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
5.Install the air filter with the arrow
mark on the top pointing inward.
6.Install the air filter case cover
and the panel.
EC000082
cC8
8
Make sure the air filter is prop-
erly seated in the air filter
case.
8 8
The engine should never be
run without the air filter
installed. Excessive piston
and/or cylinder wear may
result.
1
3.Remove the air filter.
4.Tap the air filter lightly to remove
most of the dust and dirt and
blow out the remaining dirt with
compressed air from the mesh
side of the air filter. If it is dam-
aged, replace it.1.Mesh side
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 14
6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU00713
Brake light switch
adjustmentThe rear brake light switch is activat-
ed by the brake pedal and is properly
adjusted when the brake light comes
on just before braking takes effect.
To adjust the rear brake light switch,
hold the switch body so it does not
rotate while turning the adjusting nut.
Turn the adjusting nut in direction a
to make the brake light come on earli-
er.
Turn the adjusting nut in direction b
to make the brake light come on
later.
21
a
b
1.Brake light switch
2.Adjusting nut
EAU00716
Checking the front and rear
brake padsA wear indicator is provided on each
brake. This indicator allows checking
of brake pad wear without disassem-
bling the brake. Apply the brake and
inspect the wear indicator. If the
brake pads are worn to wear limit,
have a Yamaha dealer to replace the
pads.
EAU01119
Front brake
Wear indicator grooves are provided
on each brake pad. These indicators
allow checking of brake pad wear
without disassembling the brake.
Inspect the grooves. If they have
almost disappeared, ask a Yamaha
dealer to replace the pads.
1
1
1.Wear indicator groove (´3)
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 21
EC000103
cCDo 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 and
possibly a fire.
EAU01146
Headlight bulb replacementThis motorcycle is equipped with a
quartz bulb headlight. If the headlight
bulb burns out, replace it as follows:
1.Remove cowling A. (See page
6-7 for cowling removal and
installation procedures.)
2.Remove the headlight unit.
6-29
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9Specified fuse:
20 A
1
1.Bolt (´3)
1
2
EAU01307
Fuse replacementThe fuse is located behind panel A.
(See page 6-7 for panel removal and
installation procedures.)
If the 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,
consult a Yamaha dealer.1.Main fuse
2.Spare fuse
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 30
6-31
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU01095
Turn signal light bulb
replacement1.Remove the screw and the lens.2.Remove the defective bulb by
pushing it inward and turning it
counterclockwise.
3.Install a new bulb by pushing it
inward and turning it clockwise.
4.Install the lens and tighten the
screw.
1
2
1.Screw
2.Lens
1
1.Bulb
6.Install the bulb holder cover, con-
nectors and headlight unit.
7.Install the cowling.
8.If the headlight beam adjustment
is necessary, ask a Yamaha
dealer to make that adjustment.
4PT-9-E6 (ENG) 6 12/27/00 1:29 PM Page 32