2017 YAMAHA VIKING compression ratio

7-15
7
Avoid higher speeds and sudden or hard ac-
celeration until you are thoroughly familiar
with the operation of your vehicle. Avoid sud-
den or hard acceleration in any turn.
Braking
When slowing down or stopping, take your
foot off the accelerator pedal and press the
brake pedal smoothly. Improper use of the
brakes can cause the tires to lose traction, re-
ducing control of the vehicle and increasing
the possibility of an accident.
Braking ability is affected by type of terrain. In
most cases, gradual application of the brakes
is more effective than abrupt braking, partic-
ularly on loose surfaces, such as gravel. Al-
ways allow for greater braking distance on
rough, loose, or slippery surfaces.
Engine braking
Engine compression braking is designed to
assist you when operating your Viking off-
road. With this feature, the engine helps slow the vehicle down after you take your foot off
the accelerator. Engine braking is more no-
ticeable in four-wheel drive. Application of ve-
hicle brakes provides additional stopping
power.
Leaving the vehicle
Do not get out of the vehicle while the engine
is running and the drive select lever is in any
gear. There is a risk of injury because:

Children or others may accidentally press
the accelerator pedal.
 Objects tossed into the vehicle may strike
the accelerator pedal.
 The parking brake may not keep the vehicle
from accelerating.
Unwanted vehicle movement can cause seri-
ous injury or death, and it may be dangerous
to try to stop the vehicle.UB427BE0.book Page 15 Friday, February 5, 2016 2:14 PM

8-54
8
2. Remove the tail/brake light bulb holder(together with the bulb) by turning it
counterclockwise.
3. Push the burnt-out bulb in and turn it counterclockwise to remove it from the
bulb holder.
4. Push a new bulb in and turn it clockwise to install in the bulb holder.
5. Install the bulb holder (together with the
bulb) by turning it clockwise.
6. Install the panel. 7. Install the quick fastener screws, bolts,
and nuts, and then tighten the panel nuts
and the panel rear bolt to the specified
torques.
EBU32700TroubleshootingAlthough Yamaha vehicles receive an inspec-
tion before shipment from the factory, trouble
may occur during operation. Any problem in
the fuel, compression, or ignition systems can
cause poor starting and loss of power. The
troubleshooting chart describes a quick, easy
procedure for making checks. If your vehicle
requires any repair, take it to a Yamaha deal-
er.
1. Tail/brake light bulb holder
1
Tightening torques:Panel nut:7 Nm (0.7 m·kgf, 5.1 ft·lbf)
Panel rear bolt: 4.0 Nm (0.40 m·kgf, 2.9 ft·lbf)
UB427BE0.book Page 54 Friday, February 5, 2016 2:14 PM

10-1
10
EBU32750
SPECIFICATIONS
Dimensions:Overall length:3100 mm (122.0 in)
Overall width: 1570 mm (61.8 in) (YXM70VPHH, YXM70VPXH)
1625 mm (64.0 in) (YXM70VPSH)
Overall height: 1925 mm (75.8 in)
Wheelbase:
2135 mm (84.1 in)
Ground clearance: 300 mm (11.8 in)
Minimum turning radius: 4500 mm (177 in)Weight:Curb weight:649.0 kg (1431 lb) (YXM70VPHH, YXM70VPXH)
654.0 kg (1442 lb) (YXM70VPSH)Noise and vibration level:Noise level (77/311/EEC):83.0 dB(A) (YXM70VPXH_EUR/FRA/GBR)
Uncertainty of measurement:
3.0 dB(A) (YXM70VPXH_EUR/FRA/GBR)
A-weighted sound power level: 93.0 dB(A) (YXM70VPXH_EUR/FRA/GBR)
Uncertainty of measurement: 3.0 dB(A) (YXM70VPXH_EUR/FRA/GBR) Vibration on seat (EN1032, ISO5008):
Will not exceed 0.5 m/s² (YXM70VPXH_EUR/FRA/GBR)
Uncertainty of measurement: 0.0 m/s² (YXM70VPXH_EUR/FRA/GBR)
Vibration on handle (EN1032, ISO5008): Will not exceed 2.5 m/s² (YXM70VPXH_EUR/FRA/GBR)
Uncertainty of measurement:
0.2 m/s² (YXM70VPXH_EUR/FRA/GBR)
Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement: 686 cm³
Bore × stroke:
102.0 × 84.0 mm (4.02 × 3.31 in)
Compression ratio:
10.0 : 1
Starting system: Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:YAMALUBE
UB427BE0.book Page 1 Friday, February 5, 2016 2:14 PM