INSTRUMENT AND CONTROL FUNCTIONS
4-3
4
EAU13183
Fuel tank capTo remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, insert it into
the tank opening, and then turn it
clockwise.
WARNING
EWA11092
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leakin g fuel is a fire hazar d.
EAU41834
FuelThis motorcycle has been designed to
use a premixed fuel of gasoline and 2-
stroke engine oil. Always mix the gaso-
line and oil in a clean container before
filling the fuel tank.NOTICE
ECA15602
Always use fresh gasoline, an d fill
the fuel tank with a fresh mix just be-
fore ri din g. Do not use premixed fuel
that is more than a few hours ol d.Mixin g g asoline an d 2-stroke en gine
oil
Pour 2-stroke engine oil into a clean
container, and then add gasoline. To
mix the fuel thoroughly, shake the con-
tainer from side to side.
NOTICE
ECA15591
Use only unlea ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the piston rin gs as well as to
the exhaust system.
1. Fuel tank cap
1. 2-stroke engine oil
2. Gasoline
3. Container
Recommen ded fuel:
Premium unleaded gasoline only
Recommen ded 2-stroke en gine oil:
See page 9-1.
Fuel tank capacity:
5.0 L (1.32 US gal, 1.10 Imp.gal)
Mixin g ratios ( gasoline to oil):
Break-in period: 15:1
After break-in: 30:1
U1SN82E0.book Page 3 Friday, June 7, 2013 3:51 PM
SPECIFICATIONS
9-1
9
Dimensions:Overall length:YZ85 1822 mm (71.7 in)
YZ85E 1822 mm (71.7 in)
YZ85LW 1900 mm (74.8 in)
YZ85LWE 1900 mm (74.8 in)
Overall width:
758 mm (29.8 in)
Overall height: YZ85 1161 mm (45.7 in)
YZ85E 1161 mm (45.7 in)
YZ85LW 1205 mm (47.4 in)
YZ85LWE 1205 mm (47.4 in)
Seat height: YZ85 864 mm (34.0 in)
YZ85E 864 mm (34.0 in)
YZ85LW 904 mm (35.6 in)
YZ85LWE 904 mm (35.6 in)
Wheelbase:
YZ85 1258 mm (49.5 in)
YZ85E 1258 mm (49.5 in)
YZ85LW 1286 mm (50.6 in)
YZ85LWE 1286 mm (50.6 in)
Ground clearance: YZ85 351 mm (13.82 in)
YZ85E 351 mm (13.82 in)
YZ85LW 393 mm (15.47 in)
YZ85LWE 393 mm (15.47 in)Wei ght:Curb weight:
YZ85 71 kg (157 lb)
YZ85E 71 kg (157 lb)
YZ85LW 73 kg (161 lb)
YZ85LWE 73 kg (161 lb)
Engine:Engine type:
Liquid cooled 2-stroke
Cylinder arrangement:
Single cylinder
Displacement: 84 cm³
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)Coolin g 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)
Car buretor:Type × quantity:
PWK28 x 1Spark 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-discTransmission:Primary reduction ratio:
3.611 (65/18)
Final drive: Chain
Secondary reduction ratio: YZ85 3.428 (48/14)
YZ85E 3.428 (48/14)
YZ85LW 3.714 (52/14)
YZ85LWE 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)
U1SN82E0.book Page 1 Friday, June 7, 2013 3:51 PM
