2012 YAMAHA YZ85 weight

SAFETY INFORMATION
2-3
2


Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail- able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces- sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer. Aftermarket Parts, Accessories, and
Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’
s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing ” when mounting accessories.


Never install accessories that
would impair the performance of
your motorcycle. Carefully inspect
the accessory before using it to
make sure that it does not in any
way reduce ground clearance or cornering clearance, limit suspen-
sion travel, steering travel or con-
trol operation.
 Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution. If accesso-
ries are added to the handlebar
or front fork area, they must be
as lightweight as possible and
should be kept to a minimum.
 Bulky or large accessories may
seriously affect the stability of
the motorcycle. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become un-
stable in cross winds.
 Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
tor and may limit control ability,
therefore, such accessories are
not recommended.


Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
motorcycle ’s electrical system, an
U1SN80E0.book Page 3 Thursday, June 9, 2011 11:24 AM

INSTRUMENT AND CONTROL FUNCTIONS
4-9
4
EAU51650
Front fork bleeding
WARNING
EWA10200
Always bleed both fork legs, other-
wise poor handling and loss of sta-
bility may result.When riding in extremely rough condi-
tions, the air temperature and pressure
in the front fork will rise. This will in-
crease the spring preload and harden
the front suspension. If this occurs,
bleed the front fork as follows.1. Lift the front wheel off the ground according to the procedure on
page 7-27.TIPWhen bleeding the front fork, there
should be no weight on the front end of
the vehicle.2. Remove the bleed screws and al-low all of the air to escape from
each fork leg. 3. Install the bleed screws.
4. Lower the front wheel so that it is
on the ground, install the remov-
able sidestand, and then rest the
motorcycle on it.
EAU41333
Adjusting the shock absorber
assembly This shock absorber assembly is
equipped with a spring preload adjust-
ing nut, a rebound damping force ad-
justing screw and a compression
damping force adjusting screw.NOTICE
ECA10101
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.Spring preload
Adjust the spring preload as follows.1. Loosen the locknut.
2. To increase the spring preload and thereby harden the suspension,
turn the adjusting nut in direction
(a). To decrease the spring pre-
load and thereby soften the sus-
pension, turn the adjusting nut in
direction (b).
1. Bleed screw
U1SN80E0.book Page 9 Thursday, June 9, 2011 11:24 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-15
7
EAU48432
Adjusting the throttle grip free
play The throttle grip free play should mea-
sure 3.0–5.0 mm (0.12 –0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, adjust it as follows.TIPThe engine idling speed must be cor-
rectly adjusted before checking and ad-
justing the throttle grip free play.1. Slide the rubber cover back.
2. Loosen the locknut. 3. To increase the throttle grip free
play, turn the adjusting nut in direc-
tion (a). To decrease the throttle
grip free play, turn the adjusting
nut in direction (b).
4. Tighten the locknut and then slide the rubber cover to its original po-
sition.
EAU41821
Tires To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA14381
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.

The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).


The tire air pressure must be ad-
justed in accordance with the
weight of the rider, the riding
speed, and the riding condi-
tions.
1. Throttle grip free play
1. Locknut
2. Throttle grip free play adjusting nut
3. Rubber cover
2
3
(a)
(b)
1
U1SN80E0.book Page 15 Thursday, June 9, 2011 11:24 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-22
7
EAU22760
Drive chain slack The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU41411
To check the drive chain slack1. Install the removable sidestand and place the motorcycle on it.TIPWhen checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into the neu-tral position.
3. Measure the drive chain slack as shown. 4. If the drive chain slack is incorrect,
adjust it as follows.
EAU41483
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.1. Loosen the axle nut and the lock- nut on each side of the swingarm.
2. To tighten the drive chain, turn the drive chain slack adjusting bolt on
each side of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward. NOTICE: Improper drive
chain slack will overload the en- gine 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.
Drive chain slack:35.0 –45.0 mm (1.38 –1.77 in)
1. Drive chain slack
1. Axle nut
2. Drive chain puller
3. Locknut
4. Drive chain slack adjusting bolt
5. Alignment marks
5 4
32
U1SN80E0.book Page 22 Thursday, June 9, 2011 11:24 AM

SPECIFICATIONS
9-1
9
Dimensions:Overall length:YZ85 1818 mm (71.6 in)
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)(FIN)
(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(NOR)
(POL)(PRT)(SVN)(SWE)
YZ85 1821 mm (71.7 in) (ZAF)
YZ85B 1818 mm (71.6 in)
YZ85LW 1903 mm (74.9 in)
YZ85LWB 1903 mm (74.9 in)
Overall width: 758 mm (29.8 in)
Overall height:
YZ85 1161 mm (45.7 in)
YZ85B 1161 mm (45.7 in)
YZ85LW 1205 mm (47.4 in)
YZ85LWB 1205 mm (47.4 in)
Seat height: YZ85 864 mm (34.0 in)
YZ85B 864 mm (34.0 in)
YZ85LW 904 mm (35.6 in)
YZ85LWB 904 mm (35.6 in)
Wheelbase: YZ85 1255 mm (49.4 in)
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)(FIN)
(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(NOR)
(POL)(PRT)(SVN)(SWE)
YZ85 1258 mm (49.5 in) (ZAF)
YZ85B 1255 mm (49.4 in)
YZ85LW 1286 mm (50.6 in)
YZ85LWB 1286 mm (50.6 in) Ground clearance:
YZ85 351 mm (13.82 in)
YZ85B 351 mm (13.82 in)
YZ85LW 393 mm (15.47 in)
YZ85LWB 393 mm (15.47 in)
Weight:Curb weight:
YZ85 71 kg (157 lb)
YZ85B 71 kg (157 lb)
YZ85LW 73 kg (161 lb)
YZ85LWB 73 kg (161 lb)Engine:Engine type:Liquid cooled 2-stroke
Cylinder arrangement:
Single cylinder
Displacement: 84 cm ³
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
U1SN80E0.book Page 1 Thursday, June 9, 2011 11:24 AM