PERIODIC MAINTENANCE AND ADJUSTMENT
7-14
7
The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-
quality product.
Ride conservatively after
changing a tire since the tire
must seat itself on the rim prop-
erly. Failure to allow proper
seating may cause tire failure,
which may result in damage to
the motorcycle and injury to the
rider.
EAU21942
Spoke wheels
WARNING
EWA10610
The wheels on this model are not de-
signed for use with tubeless tires.
Do not attempt to use tubeless tires
on this model.To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified wheels.
The wheel rims should be checked
for cracks, bends or warpage, and
the spokes for looseness or dam-
age before each ride. If any dam-
age is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
EAU44882
Adjusting the brake lever free
play The brake lever free play should mea-
sure 10.0–20.0 mm (0.39–0.79 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, adjust it
as follows.
1. Slide the rubber cover back.
2. Loosen the locknut at the brake le-
ver.1. Brake lever free play
2. Locknut
3. Brake lever free play adjusting bolt
4. Rubber cover1
2
3
4(a)
(b)
U3RV8LE0.book Page 14 Tuesday, April 13, 2010 8:48 AM
SPECIFICATIONS
9-1
9
Dimensions:Overall length:
1540 mm (60.6 in)
Overall width:
640 mm (25.2 in)
Overall height:
880 mm (34.6 in)
Seat height:
635 mm (25.0 in)
Wheelbase:
1055 mm (41.5 in)
Ground clearance:
185 mm (7.28 in)
Minimum turning radius:
1700 mm (66.9 in)Weight:With oil and fuel:
61 kg (134 lb)Noise and vibration level:Noise level (77/311/EEC):
PW80 79.3 dB(A)@2750 r/min
Vibration on seat (EN1032, ISO5008):
PW80 Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008):
PW80 Will not exceed 2.5 m/s²Engine:Engine type:
Air cooled 2-stroke
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
79 cm³
Bore × stroke:
47.0 × 45.6 mm (1.85 × 1.80 in)Compression ratio:
6.60 :1
Starting system:
Kickstarter
Lubrication system:
Separate lubrication (Yamaha autolube)
Engine oil:Type:
YAMALUBE 2S or 2-stroke engine oil
(JASO FC grade) or (ISO EG-C or EG-D
grade)
Engine oil quantity:
Quantity:
0.75 L (0.79 US qt, 0.66 Imp.qt)Transmission oil:Type:
YAMALUBE 4 (10W-40) or SAE 10W-40
Oil change quantity:
0.65 L (0.69 US qt, 0.57 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
PW80 Regular unleaded gasoline only
PW80A Unleaded gasoline only
Fuel tank capacity:
4.9 L (1.29 US gal, 1.08 Imp.gal)
Fuel reserve amount:
1.0 L (0.26 US gal, 0.22 Imp.gal)Carburetor:Type × quantity:
VM15SC x 1
Spark plug(s):Manufacturer/model:
NGK/BPR6HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-disc automaticTransmission:Primary reduction system:
Helical gear
Primary reduction ratio:
66/21 (3.143)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
32/15 (2.133)
Transmission type:
Constant mesh 3-speed
Operation:
Left foot operation
Gear ratio:
1st:
39/12 (3.250)
2nd:
29/16 (1.812)
3rd:
22/17 (1.294)Chassis:Frame type:
Steel tube backbone
Caster angle:
26.00 °
U3RV8LE0.book Page 1 Tuesday, April 13, 2010 8:48 AM
