2012 YAMAHA YZ85 air condition

SAFETY INFORMATION
2-2
2


Many accidents have been caused
by error of the motorcycle opera-
tor. A typical error made by the op-
erator is veering wide on a turn
due to excessive speed or under-
cornering (insufficient lean angle
for the speed). Never travel faster
than warranted by conditions.


Ride cautiously in unfamiliar ar-
eas. You may encounter hidden
obstacles that could cause an ac-
cident.


The posture of the operator is im-
portant for proper control. The op-
erator should keep both hands on
the handlebar and both feet on the
operator footrests during operation
to maintain control of the motorcy-
cle.


Never ride under the influence of
alcohol or other drugs.


Be sure the transmission is in neu-
tral before starting the engine.Protective Apparel
The majority of fatalities from motorcy-
cle accidents are the result of head in-
juries. The use of a safety helmet is the
single most critical factor in the preven-
tion or reduction of head injuries.


Always wear an approved helmet.


Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.


The use of a jacket, heavy boots,
trousers, gloves, etc., is effective in
preventing or reducing abrasions
or lacerations.


Never wear loose-fitting clothes,
otherwise they could catch on the
control levers, footrests, or wheels
and cause injury or an accident.


Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust sys-
tem become very hot during or af-
ter operation and can cause burns.Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing car-
bon monoxide can cause headaches,
dizziness, drowsiness, nausea, confu-
sion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be
present even if you do not see or smell
any engine exhaust. Deadly levels of
carbon monoxide can collect rapidly
and you can quickly be overcome and
unable to save yourself. Also, deadly
levels of carbon monoxide can linger
for hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poison-
ing, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.


Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.


Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
U1SN80E0.book Page 2 Thursday, June 9, 2011 11:24 AM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-2
5
Rear brake 
Check operation.
 If soft or spongy, have Yamaha dealer bleed hydraulic system.
 Check brake pads for wear.
 Replace if necessary.
 Check fluid level in reservoir.
 If necessary, add specified brake fluid to specified level.
 Check hydraulic system for leakage. 7-19, 7-20
Clutch 
Check operation.
 Lubricate cable if necessary.
 Check lever free play.
 Adjust if necessary. 7-17
Throttle grip 
Make sure that operation is smooth.
 Check throttle grip free play.
 If necessary, have Yamaha dealer adjust throttle grip free play and lubricate cable
and grip housing. 7-15, 7-24
Drive chain 
Check chain slack.
 Adjust if necessary.
 Check chain condition.
 Lubricate if necessary. 7-22, 7-23
Wheels and tires 
Check for damage.
 Check tire condition and tread depth.
 Check air pressure.
 Correct if necessary.
 Check for loose spokes and tighten if necessary. 7-15, 7-17
Shift pedal 
Make sure that operation is smooth.
 Correct if necessary. 7-19
Brake pedal 
Make sure that operation is smooth.
 Lubricate pedal pivoting point if necessary. 7-25
Brake and clutch levers 
Make sure that operation is smooth.
 Lubricate lever pivoting points if necessary. 7-24
Steering Check that the handlebar can be turned smoothly and has no excessive play. 7-26
ITEM CHECKS PAGE
U1SN80E0.book Page 2 Thursday, June 9, 2011 11:24 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-4
7
NO.ITEM ROUTINEAfter
break-in Every
race Every
third race Every
fifth race As
required
√
√
√
13
*Carburetor 
Check carburetor settings and for obstructions. √
 Adjust and clean. √
14 Spark plug 
Check condition.
 Clean and regap. √
 Replace. √
15 Drive chain 
Check chain slack, alignment and condition.
 Adjust and thoroughly lubricate chain with Yamaha
chain and cable lube or equivalent. √
√
√
√
√
 Replace. √
16 * *
Cooling system 
Check coolant level and for leakage. √
√
 Check hoses for cracks or damage. √
 Check radiator cap spring operation. √
 Change coolant. Every 2 years √
17 *Chassis fasteners 
Check all chassis fitting and fasteners.
 Correct or tighten if necessary. √
18 Air filter element 
Clean.
√
 Replace. √
19 *Frame Clean and check for damage. √
20 *Fuel line Clean and check for leakage. √√
U1SN80E0.book Page 4 Thursday, June 9, 2011 11:24 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-26
7
EAU23272
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]
2. While applying the front brake, push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
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.
U1SN80E0.book Page 26 Thursday, June 9, 2011 11:24 AM