Introduction
Weight of the rider should not exceed 60.0 kg (132 lb).
AN IMPORTANT NOTE TO PARENTS:
This motorcycle is not a toy. Before you let your child ride this motorcycle, you
should understand the instructions and warnings in this Owner’s Manual. Then be
sure your child understands and will follow them. Children differ in skills, physical
abilities, and judgment. Some children may not be able to operate a motorcycle
safely. Parents should supervise their child’s use of the motorcycle at all times.
Parents should permit continued use only if they determine that the child has the
ability to operate the motorcycle safely.
Motorcycles are sin gle track vehicles. Their safe use an d operation are d e-
pen dent upon the use of proper ri din g techniques as well as the expertise of
the operator. Every operator shoul d know the followin g requirements before
ri din g this motorcycle.
He or she should: Obtain thorough instructions from a competent source on all aspects of mo-
torcycle operation.
Observe the warnings and maintenance requirements in this Owner’s Manu-
al.
Obtain qualified training in safe and proper riding techniques.
Obtain professional technical service as indicated in this Owner’s Manual
and/or when made necessary by mechanical conditions.
UB5181E0.book Page 2 Monday, April 6, 2015 9:22 AM
Instrument and control functions
4-9
4
EAU46283
Seat
To remove the seat
Remove the bolts, and then slide the
seat to the rear and pull upward.
To install the seat
1. Fit the slot in the seat onto the pro- jection on the fuel tank, and insert
the projection on the seat into the
seat holder as shown.
2. Place the seat in the original posi- tion, and then tighten the bolts.
TIP
Make sure that the seat is properly se-
cured before riding.
EAU46023
Shock ab sorber assem bly
WARNING
EWA10222
This shock ab sorber assem bly con-
tains hig hly pressurize d nitro gen
g as. Rea d an d un derstan d the fol-
lowin g information before han dlin g
the shock a bsor ber assem bly.
Do not tamper with or attempt
to open the cylind er assembly.
Do not su bject the shock a b-
sor ber assem bly to an open
flame or other hi gh heat source.
This may cause the unit to ex-
plo de due to excessive gas
pressure.
Do not deform or damag e the
cylin der in any way. Cylin der
d amag e will result in poor
d ampin g performance.
Do not dispose of a dama ged or
worn-out shock a bsor ber
as-
sem bly yourself. Take the shock
a b sor ber assem bly to a Yamaha
d ealer for any service.
1. Bolt
1. Slot
2. Projection
3. Seat holder
1
21
2 3
UB5181E0.book Page 9 Monday, April 6, 2015 9:22 AM
Periodic maintenance an d a djustment
7-1
7
EAU17246
Periodic inspection, adjustment, and
lubrication will keep your vehicle in the
safest and most efficient condition
possible. Safety is an obligation of the
vehicle owner/operator. The most im-
portant points of vehicle inspection,
adjustment, and lubrication are ex-
plained on the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However, de-
pending on the weather, terrain, geo-
graphical location, and individual use,
the maintenance intervals may need to
be shortened.
WARNING
EWA10322
Failure to properly maintain the vehi-
cle or performin g maintenance ac-
tivities incorrectly may increase
your risk of injury or d eath durin g
service or while usin g the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha d ealer perform
service.
WARNING
EWA15123
Turn off the en gine when performin g
maintenance unless otherwise
specified .
A runnin g en gine has movin g
parts that can catch on body
parts or clothin g an d electrical
parts that can cause shocks or
fires.
Runnin g the en gine while ser-
vicin g can lead to eye injury,
b urns, fire, or car bon monoxi de
poisonin g – possi bly lea din g to d
eath. See pag e 2-2 for more in-
formation a bout car bon monox-
i d e.
WARNING
EWA15461
Brake discs, calipers, drums, an d
linin gs can b ecome very hot during
use. To avoi d possi ble burns, let
b rake components cool before
touchin g them.
UB5181E0.book Page 1 Monday, April 6, 2015 9:22 AM
Periodic maintenance an d a djustment
7-2
7
EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replace-
ment, or repair of the emission control
devices and systems may be per-
formed by any repair establishment or
individual that is certified (if applicable).
Yamaha dealers are trained and equipped to perform these particular
services.
EAU17312
Owner’s tool kit
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
TIP
If you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.
UB5181E0.book Page 2 Monday, April 6, 2015 9:22 AM
Periodic maintenance an d a djustment
7-5
7
EAU40001
TIP
The air filter needs more frequent service if you are riding in unusually wet or dusty
areas.
9 *Steerin g b earin gs • Check bearing assemblies for
looseness.
• Moderately repack with lithium- soap-based grease. √√
10 *Chassis fasteners • Check all chassis fitting and
fasteners.
• Correct if necessary. √√ √
11 Brake lever pivot
shaft • Apply lithium-soap-based
grease lightly. √√
12 Brake pe
dal pivot
shaft • Apply lithium-soap-based
grease lightly. √√
13 Si destan d pivot • Check operation.
• Apply lithium-soap-based
grease lightly. √√
14 *Front fork • Check operation and for oil
leakage.
• Replace if necessary. √√
15 *Shock ab
sorber as-
sem bly • Check operation and for oil
leakage.
• Replace if necessary. √
16 *Control ca bles • Apply Yamaha cable lubricant
or other suitable cable lubricant
thoroughly. √√ √
17 *Throttle grip • Check operation.
• Check throttle grip free play,
and adjust if necessary.
• Lubricate cable and grip hous- ing. √√ √
No. ITEM
13 5
0.6 1.8 3 16 12
30 90 150
X 1000 km X 1000 mi month
CHECKS AND
MAINTENANCE JOBS
hours
INITIALODOMETER READINGS
UB5181E0.book Page 5 Monday, April 6, 2015 9:22 AM
Periodic maintenance an d a djustment
7-13
7
EAU39931
A djustin g the car buretor
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, most
carburetor adjustments should be left
to a Yamaha dealer, who has the nec-
essary professional knowledge and ex-
perience. The adjustment described in
the following section, however, may be
serviced by the owner as part of rou-
tine maintenance.
NOTICE
ECA10551
The car buretor has b een set and ex-
tensively teste d at the Yamaha fac-
tory. Chan gin g these settin gs
without sufficient technical knowl-
e dge may result in poor perfor-
mance of or damag e to the en gine.
EAU21363
A djustin g the eng ine idlin g
spee d
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
TIP
A diagnostic tachometer is needed to
make this adjustment.
1. Attach the tachometer to the
spark plug lead.
2. Start the engine and warm it up for several minutes at 1000–2000
r/min while occasionally revving it
to 4000–5000 r/min.
TIP
The engine is warm when it quickly re-
sponds to the throttle.
3. Check the engine idling speedand, if necessary, adjust it to
specification by turning the throt-
tle stop screw. To increase the en-
gine idling speed, turn the screw in
direction (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
1. Throttle stop screw
(a) (b)
1
UB5181E0.book Page 13 Monday, April 6, 2015 9:22 AM
Periodic maintenance an d a djustment
7-22
7
EAU23018
Cleanin g an d lu bricatin g the
d rive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic 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.
NOTICE
ECA10584
The drive chain must be lu bricate d
after washin g the motorcycle, ri din g
in the rain or ri din g in wet areas.
1. Remove all dirt and mud from the
drive chain with a brush or cloth.
TIP
For a thorough cleaning, have a
Yamaha dealer remove the drive chain and soak it in solvent.
2. Spray Yamaha chain lubricant or other suitable chain lubricant on
the entire chain, making sure that
all side plates and rollers have
been sufficiently oiled.
EAU23098
Checkin g an d lu bricatin g the
ca bles
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 lubri-
cated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or re-
place it. WARNING! Dama ge to the
outer housin g of cab les may result
in internal rustin g an d cause inter-
ference with cab le movement. Re-
place damag ed cab les as soon as
possi ble to prevent unsafe con di-
tions.
[EWA10712]
Recommen ded lu bricant:
Yamaha cable lubricant or other
suitable cable lubricant
UB5181E0.book Page 22 Monday, April 6, 2015 9:22 AM
Periodic maintenance an d a djustment
7-29
7
EAU24351
Supportin g the motorcycle
Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy- cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under 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 the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24361
Front wheel
EAU56491
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.
1. Slide the rubber cover back at the
brake lever.
2. Loosen the locknut, and then turn the brake lever free play adjusting
bolt fully in direction (a).
3. Loosen the axle nut.
1. Rubber cover
2. Brake lever free play adjusting bolt
3. Locknut
1. Axle nut
2. Washer
(a)
3
21
(a)
UB5181E0.book Page 29 Monday, April 6, 2015 9:22 AM