wheel YAMAHA YZ85 2013 User Guide

PERIODIC MAINTENANCE AND ADJUSTMENT
7-23
7gine 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 with-
in the specified limits.
[ECA10571]
TIPUsing the alignment marks on each
drive chain puller, make sure that both
drive chain pullers are in the same po-
sition for proper wheel alignment.3. Tighten both locknuts and the axle
nut to the specified torques. 4. Make sure that the drive chain pull-
ers are in the same position, the
drive chain slack is correct, and
the drive chain moves smoothly.
EAU23016
Cleaning and lubricating the
drive 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
ECA10583
The drive chain must be lubricated
after washing the motorcycle, riding
in the rain or riding in wet areas.1. Remove all dirt and mud from thedrive chain with a brush or cloth.TIPFor a thorough cleaning, have a
Yamaha 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 the entire
chain, making sure that all side
plates and rollers have been suffi-
ciently oiled.
1. Axle nut
2. Drive chain puller
3. Locknut
4. Drive chain slack adjusting bolt
5. Alignment marks
5 4
32
Tightening torques:
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
Axle nut:
90 Nm (9.0 m·kgf, 65 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-27
7
EAU23283
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. (See page 7-27 for more
information.) WARNING! To
avoid injury, securely support
the vehicle so there is no danger
of it falling over.
[EWA10751]
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.
EAU23291
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
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 wheel1. 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
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-28
7
a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24360
Front wheel
EAU41343
To remove the front wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Loosen the axle nut.
2. Lift the front wheel off the ground
according to the procedure in the
previous section “Supporting the
motorcycle”.
3. Remove the axle nut and washer. 4. Pull the wheel axle out, and then
remove the wheel. NOTICE: Do
not apply the brake after the
wheel has been removed to-
gether with the brake disc, oth-
erwise the brake pads will be
forced shut.
[ECA11071]
EAU41422
To install the front wheel1. Lift the wheel up between the fork legs.TIPMake sure that there is enough space
between the brake pads before install-
ing the wheel.2. Insert the wheel axle from the rightside.
1. Washer
2. Axle nut
1. Wheel axle
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-29
73. Lower the front wheel so that it is
on the ground, install the remov-
able sidestand, and then rest the
motorcycle on it.
4. Install the washer and axle nut, and then tighten the axle nut to the
specified torque.
EAU25080
Rear wheel
EAU41313
To remove the rear wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Loosen the axle nut.
2. Lift the rear wheel off the groundaccording to the procedure on
page 7-27.
3. Fully loosen the locknut, and then loosen the drive chain slack ad-
justing bolt on each side of the
swingarm.
4. Remove the axle nut and washer. 5. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
TIP●
If the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.
●
The drive chain does not need to
be disassembled in order to re-
move and install the rear wheel.
Tightening torque:Axle nut:70 Nm (7.0 m·kgf, 51 ft·lbf)
1. Axle nut
2. Washer
3. Locknut
4. Drive chain slack adjusting bolt
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-30
7
6. While supporting the brake caliper
and slightly lifting the wheel, pull
the wheel axle out.
TIPA rubber mallet may be useful to tap the
wheel axle out.7. Remove the wheel. NOTICE: Do
not apply the brake after the
wheel has been removed to-
gether with the brake disc, oth-
erwise the brake pads will be
forced shut.
[ECA11071]
EAU41325
To install the rear wheel1. Install the drive chain onto the rear sprocket. 2. Install the wheel and the brake cal-
iper bracket by inserting the wheel
axle from the right-hand side.
TIP●
Make sure that the slot in the brake
caliper bracket is fit over the retain-
er on the swingarm.
●
Make sure that there is enough
space between the brake pads be-
fore installing the wheel.
3. Install the washer and axle nut.
4. Lower the rear wheel so that it ison the ground, install the remov-
able sidestand, and then rest the
motorcycle on it. 5. Adjust the drive chain slack. (See
page 7-22.)
6. Tighten the locknuts and the axle nut to their specified torques.
1. Wheel axle
1. Retainer
2. Slot
2 1
Tightening torque:
Locknut: 16 Nm (1.6 m·kgf, 12 ft·lbf)
Axle nut:
90 Nm (9.0 m·kgf, 65 ft·lbf)
U1SN81E0.book Page 30 Tuesday, June 12, 2012 3:17 PM

MOTORCYCLE CARE AND STORAGE
8-1
8
EAU37833
Matte color caution NOTICE
ECA15192
Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
advice on what products to use be-
fore cleaning the vehicle. Using a
brush, harsh chemical products or
cleaning compounds when cleaning
these parts will scratch or damage
their surface. Wax also should not
be applied to any matte colored fin-
ished parts.
EAU41358
Care While the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a motor-
cycle. Frequent and proper care does
not only comply with the terms of the
warranty, but it will also keep your mo-
torcycle looking good, extend its life
and optimize its performance.
Before cleaning1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers as well as all electrical couplers
and connectors, including the
spark plug cap, are tightly in-
stalled.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod- ucts onto seals, gaskets, sprock-
ets, the drive chain and wheel
axles. Always rinse the dirt and de-
greaser off with water.
Cleaning
NOTICE
ECA17691
●
Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the af-
fected area any longer than in-
structed. Also, thoroughly rinse
the area off with water, immedi-
ately dry it, and then apply a cor-
rosion protection spray.
●
Improper cleaning can damage
plastic parts (such as cowlings,
panels, etc.) and the mufflers.
Use only a soft, clean cloth or
sponge with water to clean plas-
tic. However, if the plastic parts
cannot be thoroughly cleaned
with water, diluted mild deter-
gent with water may be used. Be
U1SN81E0.book Page 1 Tuesday, June 12, 2012 3:17 PM

MOTORCYCLE CARE AND STORAGE
8-2
8sure to rinse off any detergent
residue using plenty of water, as
it is harmful to plastic parts.
●
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
●
Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, and switches),
breather hoses and vents.
After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the sea
Since sea salt is extremely corrosive,
carry out the following steps after each
ride in the rain or near the sea.
1. Clean the motorcycle with cold wa- ter and a mild detergent, after the
engine has cooled down.
NOTICE: Do not use warm water
since it increases the corrosive
action of the salt.
[ECA10791]
2. Apply a corrosion protection spray on all metal, including chrome- and
nickel-plated, surfaces to prevent
corrosion.
After cleaning 1. Dry the motorcycle with a chamois or an absorbing cloth.
2. Immediately dry the drive chain and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine chrome, aluminum and stainless-
steel parts, including the exhaust
system. 4. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean- er to remove any remaining dirt.
6. Touch up minor paint damage caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely before storing or covering it.
WARNING
EWA11131
Contaminants on the brakes or tires
can cause loss of control.●
Make sure that there is no oil or
wax on the brakes or tires.
●
If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent. Before riding at higher
speeds, test the motorcycle’s
braking performance and cor-
nering behavior.
U1SN81E0.book Page 2 Tuesday, June 12, 2012 3:17 PM

MOTORCYCLE CARE AND STORAGE
8-4
8prevent damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine over.
[EWA10951]
5. Lubricate all control cables and the
pivoting points of all levers and
brake pedal.
6. 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.
7. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.TIPMake any necessary repairs before
storing the motorcycle.U1SN81E0.book Page 4 Tuesday, June 12, 2012 3:17 PM

SPECIFICATIONS
9-1
9
Dimensions:Overall length:YZ85 1818 mm (71.6 in)
YZ85D 1818 mm (71.6 in)
YZ85LW 1903 mm (74.9 in)
YZ85LWD 1903 mm (74.9 in)
Overall width:
758 mm (29.8 in)
Overall height: YZ85 1161 mm (45.7 in)
YZ85D 1161 mm (45.7 in)
YZ85LW 1205 mm (47.4 in)
YZ85LWD 1205 mm (47.4 in)
Seat height: YZ85 864 mm (34.0 in)
YZ85D 864 mm (34.0 in)
YZ85LW 904 mm (35.6 in)
YZ85LWD 904 mm (35.6 in)
Wheelbase:
YZ85 1255 mm (49.4 in)
YZ85D 1255 mm (49.4 in)
YZ85LW 1286 mm (50.6 in)
YZ85LWD 1286 mm (50.6 in)
Ground clearance: YZ85 351 mm (13.82 in)
YZ85D 351 mm (13.82 in)
YZ85LW 393 mm (15.47 in)
YZ85LWD 393 mm (15.47 in)Weight:Curb weight:
YZ85 71 kg (157 lb)
YZ85D 71 kg (157 lb)
YZ85LW 73 kg (161 lb)
YZ85LWD 73 kg (161 lb)
Engine:Engine type:Liquid cooled 2-stroke
Cylinder arrangement:
Single cylinder
Displacement: 84 cm³
Bore × stroke:
47.5 × 47.8 mm (1.87 × 1.88 in)
Compression ratio:
8.20 : 1
Starting system: Kickstarter
Lubrication system: PremixEngine oil:Type:YAMALUBE 2RTransmission oil:Type:
YAMALUBE 4 (10W-40) or SAE 10W-40
Oil change quantity: 0.50 L (0.53 US qt, 0.44 Imp.qt)Cooling system:Radiator capacity (including all routes):
0.54 L (0.57 US qt, 0.48 Imp.qt)Air filter:Air filter element:Wet elementFuel:Recommended fuel:Premium unleaded gasoline only
Fuel tank capacity: 5.0 L (1.32 US gal, 1.10 Imp.gal)
Carburetor:Type × quantity:
PWK28 x 1Spark plug(s):Manufacturer/model: NGK/BR10EG
Spark plug gap: 0.5–0.6 mm (0.020–0.024 in)Clutch:Clutch type:Wet, multiple-discTransmission:Primary reduction ratio:
3.611 (65/18)
Final drive: Chain
Secondary reduction ratio: YZ85 3.428 (48/14)
YZ85D 3.428 (48/14)
YZ85LW 3.714 (52/14)
YZ85LWD 3.714 (52/14)
Transmission type:
Constant mesh 6-speed
Operation: Left foot operation
Gear ratio: 1st:2.454 (27/11)
2nd: 1.882 (32/17)
3rd:
1.529 (26/17)
4th: 1.294 (22/17)
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SPECIFICATIONS
9-2
9
5th:1.130 (26/23)
6th: 1.000 (25/25)
Chassis:Frame type:Semi double cradle
Caster angle: YZ85 26.30 °
YZ85D 26.30 °
YZ85LW 26.90 °
YZ85LWD 26.90 °
Trail:
YZ85 88 mm (3.5 in)
YZ85D 88 mm (3.5 in)
YZ85LW 105 mm (4.2 in)
YZ85LWD 105 mm (4.2 in)Front tire:Type:With tube
Size:
YZ85 70/100-17 40M
YZ85D 70/100-17 40M
YZ85LW 70/100-19 42M
YZ85LWD 70/100-19 42M
Manufacturer/model: DUNLOP/D756FRear tire:Type:
With tube Size:
YZ85 90/100-14 49M
YZ85D 90/100-14 49M
YZ85LW 90/100-16 52M
YZ85LWD 90/100-16 52M
Manufacturer/model: DUNLOP/D756
Tire air pressure (measured on cold
tires):
Front: 100 kPa (1.00 kgf/cm², 15 psi)
Rear:
100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:Wheel type:Spoke wheel
Rim size:
YZ85 17x1.40
YZ85D 17x1.40
YZ85LW 19x1.40
YZ85LWD 19x1.40Rear wheel:Wheel type:Spoke wheel
Rim size:
YZ85 14x1.60
YZ85D 14x1.60
YZ85LW 16x1.85
YZ85LWD 16x1.85Front brake:Type:Single disc brake
Operation:
Right hand operation Specified brake fluid:
DOT 4
Rear brake:Type:
Single disc brake
Operation: Right foot operation
Specified brake fluid: DOT 4Front suspension:Type:Telescopic fork
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
275.0 mm (10.83 in)Rear suspension:Type:Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel: YZ85 282.0 mm (11.10 in)
YZ85D 282.0 mm (11.10 in)
YZ85LW 287.0 mm (11.30 in)
YZ85LWD 287.0 mm (11.30 in)Electrical system:Ignition system:
CDI
U1SN81E0.book Page 2 Tuesday, June 12, 2012 3:17 PM