Page 57 of 88
PERIODIC MAINTENANCE AND ADJUSTMENT
7-13
7
5. Clean the sponge material with
solvent, and then squeeze the re-
maining solvent out.
6. Apply oil of the recommended type to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.
TIPThe sponge material should be wet but
not dripping.7. Pull the sponge material over theair filter element frame.
8. Apply all-purpose grease to the air filter element seat.
9. Insert the air filter element into the air filter case with the projection
facing upward, and then install the
wing bolt and its washer. NOTICE:
Make sure that the air filter ele-
ment is properly seated in the air filter case. The engine
should never be operated with-
out the air filter element in-
stalled, otherwise the piston(s)
and/or cylinder(s) may become
excessively worn.
[ECA10481]
NOTICE:
Be sure to install the
washer with its curved side fac-
ing outward as shown.
[ECA16691]
1. Sponge material
2. Air filter element frame
1 2
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
1. Air filter element seat
1
1. Air filter element
2. Projection
U1SN80E0.book Page 13 Thursday, June 9, 2011 11:24 AM
Page 67 of 88
PERIODIC MAINTENANCE AND ADJUSTMENT
7-23
7
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 CableLube 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.
EAU50800
Checking and lubricating the
cables 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 lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING! Damage to the outer
housing of cables may result in in-
ternal rusting and cause interfer-
ence with cable movement. Replace
damaged cables as soon as possi-
ble to prevent unsafe conditions.[EWA10711]
Tightening torques:Locknut:
16 Nm (1.6 m ·kgf, 12 ft ·lbf)
Axle nut:
90 Nm (9.0 m ·kgf, 65 ft ·lbf)
Recommended lubricant:
Yamaha Chain and Cable Lube or 4-
stroke engine oil
U1SN80E0.book Page 23 Thursday, June 9, 2011 11:24 AM
Page 83 of 88
SPECIFICATIONS
9-2
9
Secondary reduction ratio:YZ85 3.357 (47/14) (ZAF)
YZ85 3.428 (48/14)
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)(FIN)
(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(NOR)
(POL)(PRT)(SVN)(SWE)
YZ85B 3.428 (48/14)
YZ85LW 3.714 (52/14)
YZ85LWB 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)
5th:
1.130 (26/23)
6th: 1.000 (25/25)Chassis:Frame type:
Semi double cradle
Caster angle: YZ85 26.30 °
YZ85B 26.30 °
YZ85LW 26.90 °
YZ85LWB 26.90 ° Trail:
YZ85 88 mm (3.5 in)
YZ85B 88 mm (3.5 in)
YZ85LW 105 mm (4.2 in)
YZ85LWB 105 mm (4.2 in)
Front tire:Type:
With tube
Size: YZ85 70/100-17 40M
YZ85B 70/100-17 40M
YZ85LW 70/100-19 42M
YZ85LWB 70/100-19 42M
Manufacturer/model: YZ85 DUNLOP/D739FA (ZAF)
YZ85 DUNLOP/D756F
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)(FIN)
(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(NOR)
(POL)(PRT)(SVN)(SWE)
YZ85B DUNLOP/D756F
YZ85LW DUNLOP/D739FA (ZAF)
YZ85LW DUNLOP/D756F
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)(FIN)
(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(NOR)
(POL)(PRT)(SVN)(SWE)
YZ85LWB DUNLOP/D756FRear tire:Type:With tube
Size:
YZ85 90/100-14 49M
YZ85B 90/100-14 49M
YZ85LW 90/100-16 52M
YZ85LWB 90/100-16 52M Manufacturer/model:
DUNLOP/D756
Tire air pressure (measured on cold
tires):
Front:100 kPa (1.00 kgf/cm ², 15 psi)
Rear: 100 kPa (1.00 kgf/cm ², 15 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size: YZ85 17x1.40
YZ85B 17x1.40
YZ85LW 19x1.40
YZ85LWB 19x1.40Rear wheel:Wheel type:Spoke wheel
Rim size: YZ85 14x1.60
YZ85B 14x1.60
YZ85LW 16x1.85
YZ85LWB 16x1.85Front brake:Type:Single disc brake
Operation: Right hand operation
Specified brake fluid:
DOT 4Rear brake:Type:Single disc brake
U1SN80E0.book Page 2 Thursday, June 9, 2011 11:24 AM