compression ratio YAMAHA XENTER 150 2012 Owners Manual

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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENTare no open flames or sparks in
the area, including pilot lights from
water heaters or furnaces. Gasoline
or gasoline vapors can ignite or
explode, causing severe injury or
property damage.
EAU25881
TroubleshootingAlthough Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your scooter
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
EWA15141
WARNING
When checking the fuel system, do
not smoke, and make sure there
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SPECIFICATIONS SPECIFICATIONS
EAU50910
DimensionsOverall length
1990 mm (78.3 in)
Overall width
690 mm (27.2 in)
Overall height
1135 mm (44.7 in)
Seat height
785 mm (30.9 in)
Wheelbase
1385 mm (54.5 in)
Ground clearance
140 mm (5.51 in)
Minimum turning radius
2100 mm (82.7 in)WeightCurb weight
142 kg (313 lb)EngineEngine type
Liquid cooled 4-stroke, SOHC
Cylinder arrangement
Single cylinder
Displacement
155 cm
3
Bore x stroke
58.0 x 58.7 mm (2.28 x 2.31 in)
Compression ratio
11.00 : 1
Starting system
Electric starter
Lubrication system
Wet sump
Engine oilRecommended brand
YAMALUBE
Type
SAE 10W-40, 10W-50, 15W-40, 20W-40
or 20W-50
–20 –10 0
1020 30 40 50 ˚C 10 30 50 70 90 110 0 130 ˚F
SAE 20W-50SAE 20W-40SAE 15W-40SAE 10W-40SAE 10W-50
Recommended engine oil grade
API service SG type or higher, JASO
standard MAEngine oil quantityPeriodic oil change
1.10 L (1.16 US qt, 0.97 Imp.qt)Final transmission oilType
SAE 10W-30 type SE motor oil
Quantity
0.20 L (0.21 US qt, 0.18 Imp.qt)Cooling systemCoolant reservoir capacity
(up to the maximum level mark)
0.25 L (0.26 US qt, 0.22 Imp.qt)
Air lterAir fi lter element
Oil-coated paper elementFuelRecommended fuel
Regular unleaded gasoline only
Fuel tank capacity
8.0 L (2.11 US gal, 1.76 Imp.gal)Throttle bodyID mark
52S1 01
Manufacturer
AISANSpark plug(s)Manufacturer/model
NGK / CPR9EA-9
Spark plug gap
0.8-0.9 mm (0.031-0.035 in)ClutchClutch type
Dry, centrifugal automaticTransmissionPrimary reduction ratio
1.000
Secondary reduction ratio
10.320 (46 / 13 x 35 / 12)
Final drive
Gear
Transmission type
V-belt automaticChassisFrame type
Underbone
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