OPERATION AND IMPORTANT RIDING POINTS
6-3
63. Open the throttle gradually.
4. Once the motorcycle has reached
a speed high enough to change
gears, close the throttle.
5. Shift into second gear and release the shift pedal.
6. Open the throttle gradually.
7. Follow the same procedure when shifting to the next higher gear.
EAU16711
To decelerate
1. Close the throttle and apply both the front and the rear brakes to
slow the motorcycle.
2. Downshift through the gears and shift the transmission into the neu-
tral position when the motorcycle
is almost completely stopped.
EAU39921
Engine break-inThere is never a more important period
in the life of your engine than the first 5
hours of riding. It is also important to
accustom the rider to the motorcycle
during this time. Please read the fol-
lowing information carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
5 hours of operation. The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided. However, momen-
tary full-throttle operation under load
(i.e., two to three seconds maximum)
does not harm the engine. Each full-
throttle acceleration should be fol-
lowed with a substantial rest period for
the engine. To allow the engine to cool
down from the temporary buildup of
heat, cruise at a lower engine speed.
After the first 5 hours of operation,
thoroughly check the motorcycle for
loose parts, oil leakage and any other
problems. Be sure to inspect and make adjustments thoroughly, especially ca-
ble and drive chain slack and loose
spokes. In addition, check all fittings
and fasteners for looseness, and tight-
en if necessary.
NOTICE
ECA10271
If any en
gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha dealer
check the vehicle.
UB5180E0.book Page 3 Monday, June 9, 2014 1:20 PM
SPECIFICATIONS
9-2
9
Spark plug(s):Manufacturer/model:
NGK/CR6HSA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:Wet, multiple-disc and centrifugal
automaticTransmission:Primary reduction ratio:
3.722 (67/18)
Final drive: Chain
Secondary reduction ratio: 2.500 (35/14)
Transmission type:
Constant mesh 4-speed
Operation: Left foot operation
Gear ratio: 1st:3.166 (38/12)
2nd: 1.941 (33/17)
3rd:
1.380 (29/21)
4th: 1.095 (23/21)Chassis:Frame type:
Backbone
Caster angle: 26.00 ° Trail:
60 mm (2.4 in)
Front tire:Type:
With tube
Size: 2.50-14 4PR
Manufacturer/model: CHEN SHIN/C-803-2
Speed rating:
120 km/h (75 mph)Rear tire:Type:With tube
Size:
3.00-12 4PR
Manufacturer/model: CHEN SHIN/C-803-2
Speed rating: 120 km/h (75 mph)Loa din g:Maximum rider weight:
60.0 kg (132 lb)Tire air pressure (measure d on col d
tires):
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear: 100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:Wheel type:Spoke wheel
Rim size: 14x1.40
Rear wheel:Wheel type:Spoke wheel
Rim size:
12x1.60Front brake:Type:
Drum brake
Operation:
Right hand operationRear brake:Type:
Drum brake
Operation:
Right foot operationFront suspension:Type:Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 115 mm (4.5 in)Rear suspension:Type:
Swingarm
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 110 mm (4.3 in)Electrical system:Ignition system:DC CDI
Charging system: AC magneto
UB5180E0.book Page 2 Monday, June 9, 2014 1:20 PM
