2004 YAMAHA YZ85 oil filter

SPEC
2 - 1
GENERAL SPECIFICATIONS
EC200000
SPECIFICATIONS
EC211000
GENERAL SPECIFICATIONS
Model name: YZ85 YZ85LW
YZ85S (USA)
YZ85LC (EUROPE)
YZ85(S)
(CDN, AUS, NZ, ZA)YZ85LW (EUROPE)
YZ85LWS (AUS, NZ)
Model code number: YZ85 YZ85LW
5PA7
(USA, CDN, EUROPE,
NZ, ZA)
5PA8
(AUS)5SH7
(EUROPE, NZ)
5SH8
(AUS)
Dimensions: YZ85 YZ85LW
Overall length 1,821 mm (71.7 in) 1,903 mm (74.9 in)
(USA, S, NZ, ZA)
1,818 mm (71.6 in)
(F, D, I, GB, E, CDN,
AUS)
Overall width 758 mm (28.9 in)←
Overall height 1,161 mm (45.7 in) 1,205 mm (47.4 in)
Seat height 864 mm (34.0 in) 904 mm (35.6 in)
Wheelbase 1,258 mm (49.5 in) 1,286 mm (50.6 in)
(USA, S, NZ, ZA)
1,255 mm (49.4 in)
(F, D, I, GB, E, CDN,
AUS)
Minimum ground clearance 351 mm (13.8 in) 393 mm (15.5 in)
Basic weight: YZ85 YZ85LW
With oil and full fuel tank 71 kg (156.5 lb) 73.9 kg (162.9 lb)
Engine:
Engine type Liquid cooled 2-stroke, gasoline
Cylinder arrangement Single cylinder, forward inclined
Displacement 84.7 cm
3 (2.98 Imp oz, 2.86 US oz)
Bore × stroke 47.5 × 47.8 mm (1.870 × 1.882 in)
Compression ratio 8.2 : 1
Starting system Kickstarter
Lubrication system: Premix (30 : 1) (Yamalube 2-R)
Oil type or grade (2-cycle):
Transmission oil Yamalube 4 (10W-30) or SAE 10W-30 type SE
motor oil
Periodic oil change 0.50 L (0.44 Imp qt, 0.52 US qt)
Total amount 0.55 L (0.48 Imp qt, 0.58 US qt)
Coolant capacity (including all routes): 0.54 L (0.48 Imp qt, 0.57 US qt)
Air filter: Wet type element
2

SPEC
2 - 7
MAINTENANCE SPECIFICATIONS
Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Spark plug M14 × 1.25 1 20 2.0 14
Cylinder head (nut) M8 × 1.25 4 30 3.0 22
(stud bolt) M8 × 1.25 4 13 1.3 9.4
Cylinder (nut) M8 × 1.25 4 28 2.8 20
(stud bolt) M8 × 1.25 4 13 1.3 9.4
Impeller M8 × 1.25 1 14 1.4 10
Coolant drain bolt M6 × 1.0 1 10 1.0 7.2
Water pump housing M6 × 1.0 2 10 1.0 7.2
Air filter element M6 × 1.0 1 2 0.2 1.4
Carburetor joint M6 × 1.0 4 8 0.8 5.8
Reed valve M3 × 0.5 4 1 0.1 0.7
Exhaust pipe M6 × 1.0 2 12 1.2 8.7
Exhaust pipe stay M6 × 1.0 1 12 1.2 8.7
Silencer M6 × 1.0 1 12 1.2 8.7
Fiber (silencer) M6 × 1.0 2 12 1.2 8.7
Crankcase M6 × 1.0 11 8 0.8 5.8
Left crankcase cover M6 × 1.0 4 5 0.5 3.6
Right crankcase cover M6 × 1.0 4 10 1.0 7.2
Right crankcase cover M6 × 1.0 1 10 1.0 7.2
Clutch cover M6 × 1.0 6 10 1.0 7.2
Transmission oil drain bolt M8 × 1.25 1 10 1.0 7.2
Kickstarter crank M6 × 1.0 1 10 1.0 7.2
Primary drive gear M12 × 1.0 1 79 7.9 57
Clutch boss M12 × 1.0 1 70 7.0 50
Clutch spring M5 × 0.8 5 6 0.6 4.3
Drive sprocket M16 × 1.0 1 60 6.0 43
Crankcase bearing stopper M6 × 1.0 2 8 0.8 5.8
Crankcase oil seal holder M8 × 1.25 1 20 2.0 14
Shift pedal M6 × 1.0 1 10 1.0 7.2

3 - 2
INSP
ADJ
MAINTENANCE INTERVALS
COOLING SYSTEM
Check coolant level and leakage
Check radiator cap operation
Replace coolant
Inspect hoses








Every two years
OUTSIDE NUTS AND BOLTS
Retighten



AIR FILTER
Clean and lubricate
Replace




Use foam air-filter oil or
equivalent oil
FRAME
Clean and inspect



FUEL TANK, COCK
Clean and inspect



BRAKES
Adjust lever position and pedal height
Lubricate pivot point
Check brake disc surface
Check fluid level and leakage
Retighten brake disc bolts, caliper
bolts, master cylinder bolts and union
bolts
Replace pads
Replace brake fluid























Every one year
FRONT FORKS
Inspect and adjust
Replace oil
Replace oil seal









Suspension oil “01”
FRONT FORK OIL SEAL AND DUST
SEAL
Clean and lube


Lithium base grease
REAR SHOCK ABSORBER
Inspect and adjust
Lube
Retighten







(After
rain ride)


Molybdenum disulfide
grease
DRIVE CHAIN GUIDE, ROLLERS AND
SUPPORT
Inspect


SWINGARM
Inspect and retighten
Lube







Molybdenum disulfide
grease
RELAY ARM, CONNECTING ROD
Inspect and retighten
Lube







Molybdenum disulfide
grease
STEERING HEAD
Inspect free play and retighten
Clean and lube
Replace bearing







Lithium base grease ItemAfter
break-inEvery
raceEvery
third
raceEvery
fifth
raceAs re-
quiredRemarks


3

3 - 11
INSP
ADJ
AIR FILTER CLEANING
AIR FILTER CLEANING
NOTE:
Proper air filter maintenance is the biggest key
to preventing premature engine wear and
damage.
CAUTION:
Never run the engine without the air filter
element in place; this would allow dirt and
dust to enter the engine and cause rapid
wear and possible engine damage.
1. Remove:

Seat

Fitting bolt 1

Washer 2

Air filter element 3

Air filter guide 4
5PA30150
2. Clean:

Air filter element
Clean them with solvent.
NOTE:
After cleaning, remove the remaining solvent
by squeezing the element.
CAUTION:

Do not twist the element when squeezing
the element.

Leaving too much of solvent in the ele-
ment may result in poor starting.
5PA30160
3. Inspect:

Air filter element
Damage → Replace.
4. Apply:

Foam-air-filter oil or equivalent oil
To the element.
NOTE:
Squeeze out the excess oil. Element should be
wet but not dripping.

3 - 12
INSP
ADJ
TRANSMISSION OIL REPLACEMENT
5. Install:

Air filter guide 1
To air filter element 2.
5PA30170
6. Apply:

Lithium soap base grease
On the matching surface a on air filter ele-
ment.
5PA30180
7. Install:

Air filter element 1

Washer

Fitting bolt
NOTE:
Install the air filter element with its projection
a facing upward.
5PA30190
T R..2 Nm (0.2 m · kg, 1.4 ft · lb)
TRANSMISSION OIL REPLACEMENT
1. Start the engine and warm it up for several
minutes, and then turn off the engine and
wait for five minute.
2. Place the machine on a level place and
hold it on upright position by placing the
suitable stand under the engine.
3. Place a suitable container under the
engine.
4. Remove:

Oil drain bolt 1

Oil filler cap 2
Drain the transmission oil.
5PA30200

3 - 13
INSP
ADJ
TRANSMISSION OIL REPLACEMENT
5. Measure:

Transmission oil capacity
Out of specification → Adjust.
Oil capacity (periodic oil change):
0.50 L (0.44 Imp qt, 0.52 US qt)
6. Install:

Copper washer

Oil drain bolt 1
5PA30210
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)
7. Fill:

Transmission oil
Recommended oil:
Yamalube 4 (10W-30) or SAE
10W-30 type SE motor oil
Oil capacity (periodic oil change):
0.50 L (0.44 Imp qt, 0.52 US qt)
8. Check:

Oil leakage
9. Install:

Oil filter cap 1
5PA30220