2016 YAMAHA YZ85 radiator cap

Description
3-1
3
EAU63371
Left view
12789
345 6
1. Radiator cap (page 7-8)
2. Fuel tank cap (page 4-3)
3. Fuel cock (page 4-6)
4. Shock absorber assembly spring preload adjusting nut (page 4-10)
5. Air filter element (page 7-10)
6. Seat (page 4-8)
7. Shift pedal (page 4-2)
8. Throttle stop screw (page 7-13)
9. Starter (choke) knob (page 4-7)
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Periodic maintenance an d a djustment
7-4
722 *Front fork Check operation and for oil leakage.
Adjust if necessary.√√ Clean dust seal and lubricate with
lithium-soap-based grease.
Replace fork oil.
√√ Replace oil seals.√
NO. ITEM ROUTINE
After
break-in
Everyrace
Every
third race
Every
fifth race
As
required
Check coolant level and for leakage.√√
16 *
Cooling system Check hoses for cracks or damage.√ Check radiator cap spring operation.√ Change coolant.
Every 2 years
Every year√ Check all chassis fitting and fasteners.√√
17
*Chassis fasteners
Correct or tighten if necessary.
18Air filter element Clean.√√ Replace.√
19 *Frame Clean and check for damage.√√
√√
20
*Fuel line Clean and check for leakage.√√
21 *
Brakes Adjust lever position and pedal height.
Lubricate pivot points.
Check brake disk surface.
Check fluid level and for leakage.
Tighten brake disk bolts, caliper bolts,
master cylinder bolts and union bolts.
Replace brake pads.
√ Replace brake fluid.√
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Periodic maintenance an d a djustment
7-8
7
6. Refill with the specified amount of
the recommended transmission
oil, and then install and tighten the
oil filler cap.
NOTICE
ECA10453
In or der to prevent clutch slip-
pa ge (since the transmission oil
also lu bricates the clutch), do
not mix any chemical additives.
Do not use oils with a diesel
specification of “CD” or oils of a
hi gher quality than specifie d. In
a ddition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn mate-
rial enters the transmission.
7. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
EAU20071
Coolant
The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAUM1296To check the coolant level1. Place the vehicle on a level surfa- ce and hold it in an upright posi-
tion.
TIP
The coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
 Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
2. Remove the radiator cap and
check the coolant level in the radi-
ator. WARNING! Never attempt
to remove the ra diator cap
when the en gine is hot.
[EWA10382]
Recommen ded transmission oil:
See page 9-1.
Oil chan ge quantity:
0.51 L (0.54 US qt, 0.45 Imp.qt)
1. Radiator cap
1
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Periodic maintenance an d a djustment
7-9
7
TIP
The coolant should be at the bottom of
the radiator filler neck. The level will
change with variation of engine tem-
perature.
3. If the coolant is below the correct
coolant level, add coolant, and
then install the radiator cap.
NOTICE: If coolant is not avail-
a b le, use distille d water or soft
tap water instea d. Do not use
har d water or salt water since it
is harmful to the en gine. If water
has been used instead of cool-
ant, replace it with coolant as
soon as possi ble, otherwise the
coolin g system will not be pro-
tected against frost an d corro-
sion. If water has b een added to
the coolant, have a Yamaha
d ealer check the antifreeze con-
tent of the coolant as soon as
possi ble, otherwise the effec-
tiveness of the coolant will be
re duce d.
[ECA10473]
EAUM1318
To change the coolant
1. Place the vehicle on a level surfa- ce and let the engine cool if neces-
sary. 2. Place a container under the en-
gine to collect the used coolant.
3. Remove the radiator cap, and then the coolant drain bolt and its
gasket to drain the cooling sys-
tem. WARNING! Never attempt
to remove the ra diator cap
when the en gine is hot.
[EWA10382]
4. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
5. Install the coolant drain bolt and its new gasket, and then tighten
the bolt to the specified torque.
1. Correct coolant level
1
1. Radiator cap
1. Coolant drain bolt
2. Gasket
Tightening torque:
Coolant drain bolt: 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
12
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Periodic maintenance an d a djustment
7-10
7
6. Pour the recommended coolant
into the radiator until it is full.
7. Install the radiator cap, start the engine, let it idle for several minu-
tes, and then turn it off.
8. Remove the radiator cap to check the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the bottom of the
radiator filler neck, and then install
the radiator cap.
9. Start the engine, and then check the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
EAU48392
Cleanin g the air filter element
The air filter element should be cleaned
or replaced at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean or, if necessary, re-
place the air filter element more
frequently if you are riding in unusually
wet or dusty areas.
1. Remove the seat. (See page 4-8.)
2. Remove the air filter case cover as shown.
3. Remove the air filter element by removing the wing bolt and its
washer.
Antifreeze/water mixture ratio:1:1
Recommen ded antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibi-
tors for aluminum engines
Coolant quantity:
Radiator (including all routes):0.54 L (0.57 US qt, 0.48 Imp.qt)
1. Air filter case cover
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Periodic maintenance an d a djustment
7-33
7 En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot.
Scal din g hot flui d an d steam may b e blown out un der pressure, which
coul d cause serious injury. Be sure to wait until the eng ine has cooled.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly ro-
tate the cap counterclockwise to the detent to allow any resi dual pres-
sure to escape. When the hissin g soun d has stopped , press down on the
cap while turnin g it counterclockwise, an d then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided
that it is changed to the recommended coolant as soon as possible.
Wait until the engine
has cooled.
Add coolant.
(See TIP.)
The coolant level is
OK.
Check the coolant
level in the radiator.There is no leakage.
There is leakage.
The coolant level is
low.
Check the cooling
system for leakage.
Have a Yamaha
dealer check and
repair the cooling
system.
Start the engine. If the engine overheats again,
have a Yamaha dealer check and repair the cooling
system.
U1SN84E0.book Page 33 Wednesday, June 10, 2015 10:24 AM

Specifications
9-1
9
Dimensions:
Overall length:1821 mm (71.7 in) (YZ85, YZ85G)
1899 mm (74.8 in) (YZ85LW, YZ85LWG)
Overall width: 758 mm (29.8 in)
Overall height:
1126 mm (44.3 in) (YZ85, YZ85G)
1156 mm (45.5 in) (YZ85LW, YZ85LWG)
Seat height:
841 mm (33.1 in) (YZ85, YZ85G)
873 mm (34.4 in) (YZ85LW, YZ85LWG)
Wheelbase:
1257 mm (49.5 in) (YZ85, YZ85G)
1285 mm (50.6 in) (YZ85LW, YZ85LWG)
Ground clearance: 330 mm (12.99 in) (YZ85, YZ85G)
360 mm (14.17 in) (YZ85LW, YZ85LWG)
Wei ght:
Curb weight:
71 kg (157 lb) (YZ85, YZ85G)
73 kg (161 lb) (YZ85LW, YZ85LWG)
Engine:
Combustion cycle:
2-stroke
Cooling system: Liquid cooled
Number of cylinders:
Single cylinder
Displacement: 85 cm³
Bore × stroke:
47.5 × 47.8 mm (1.87 × 1.88 in)
Compression ratio:
8.1 : 1
Starting system: Kickstarter
Lubrication system: Premix lubrication
Engine oil:
Engine oil:
YAMALUBE 2R
Recommended brand: YAMALUBE
Transmission oil:
Type:Motor oil SAE 10W-30 type SE or higher or
Gear oil SAE 85W GL-3
Quantity: 0.51 L (0.54 US qt, 0.45 Imp.qt)
Coolant quantity:
Radiator (including all routes): 0.54 L (0.57 US qt, 0.48 Imp.qt)
Air filter:
Air filter element:Wet element
Fuel:
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity: 5.0 L (1.3 US gal, 1.1 Imp.gal)
Car buretor:
Type × quantity:
PWK28 × 1
Spark plu g(s):
Manufacturer/model:
NGK/BR10EG
Spark plug gap: 0.5–0.6 mm (0.020–0.024 in)
Clutch:
Clutch type:Wet, multiple-disc
Drivetrain:
Primary reduction ratio:
3.611 (65/18)
Final drive: Chain
Secondary reduction ratio: 3.357 (47/14) (YZ85G_CAN)
3.429 (48/14) (YZ85, YZ85G_AUS/NZL)
3.714 (52/14) (YZ85LW, YZ85LWG)
Transmission type: Constant mesh 6-speed
Gear ratio: 1st:2.455 (27/11)
2nd: 1.882 (32/17)
3rd:
1.529 (26/17)
4th: 1.294 (22/17)
5th: 1.130 (26/23)
6th:
1.000 (25/25)
Chassis:
Frame type: Semi double cradle
U1SN84E0.book Page 1 Wednesday, June 10, 2015 10:24 AM