2009 YAMAHA XV1900A service

INSTRUMENT AND CONTROL FUNCTIONS
3-19
3 3. Tighten the locknut to the specified
torque. NOTICE: Always tighten
the locknut against the adjust-
ing nut, and then tighten the
locknut to the specified torque.
[ECA10121]WARNING
EWA10221
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.

Do not tamper with or attempt to
open the cylinder assembly.


Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.


Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.


Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamahadealer for any service.
EAU15281
EXUP system This model is equipped with Yamaha’s
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the diameter of the exhaust pipe.
The EXUP system valve is constantly
adjusted in accordance with the engine
speed by a computer-controlled servo-
motor.NOTICE
ECA10191


The EXUP system has been set
and extensively tested at the
Yamaha factory. Changing
these settings without sufficient
technical knowledge may result
in poor performance of or dam-
age to the engine.


If the EXUP system cannot be
heard when the main switch is
turned on, have a Yamaha deal-er check it.
Spring preload:
Minimum (hard):
Distance A = 162 mm (6.38 in)
Standard:
Distance A = 171 mm (6.73 in)
Maximum (soft):
Distance A = 171 mm (6.73 in)
Tightening torque:
Locknut:
30 Nm (3.0 m·kgf, 22 ft·lbf)
U5C4E3E0.book Page 19 Tuesday, September 16, 2008 10:25 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-1
6
EAU17241
Periodic inspection, adjustment, and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. Safety is an obligation of the vehi-
cle owner/operator. The most important
points of vehicle inspection, adjust-
ment, and lubrication are explained on
the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, depending on the
weather, terrain, geographical location,
and individual use, the maintenance in-
tervals may need to be shortened.
WARNING
EWA10321
Failure to properly maintain the ve-
hicle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer performservice.
WARNING
EWA15121
Turn off the engine when performing
maintenance unless otherwise
specified.

A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.


Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 1-1 for more in-
formation about carbon monox-ide.
EAU17361
Owner’s tool kit The owner’s tool kit is located under the
rider seat. (See page 3-16.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.TIPIf you do not have the tools or experi-
ence required for a particular job, havea Yamaha dealer perform it for you.1. Owner’s tool kit
U5C4E3E0.book Page 1 Tuesday, September 16, 2008 10:25 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6


Hydraulic brake and clutch service
Regularly check and, if necessary, correct the brake fluid and clutch fluid levels.
Every two years replace the internal components of the brake master cylinders and calipers as well as clutch master
and release cylinders, and change the brake and clutch fluids.Replace the brake and clutch hoses every four years and if cracked or damaged.
U5C4E3E0.book Page 6 Tuesday, September 16, 2008 10:25 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
6
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placinga jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU25851
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water
U5C4E3E0.book Page 29 Tuesday, September 16, 2008 10:25 AM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2580 mm (101.6 in)
Overall width:
1100 mm (43.3 in)
Overall height:
1125 mm (44.3 in)
Seat height:
705 mm (27.8 in)
Wheelbase:
1715 mm (67.5 in)
Ground clearance:
155 mm (6.10 in)
Minimum turning radius:
3480 mm (137.0 in)Weight:With oil and fuel:
346.0 kg (763 lb)Engine:Engine type:
Air cooled 4-stroke, OHV
Cylinder arrangement:
V-type 2-cylinder
Displacement:
1854.0 cm³
Bore × stroke:
100.0 × 118.0 mm (3.94 × 4.65 in)
Compression ratio:
9.48 :1
Starting system:
Electric starter
Lubrication system:
Dry sump
Engine oil:Type:
SAE 10W-30, SAE 10W-40, SAE 10W-50,
SAE 15W-40, SAE 20W-40 or SAE 20W-
50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter cartridge replacement:
4.10 L (4.33 US qt, 3.61 Imp.qt)
With oil filter cartridge replacement:
4.90 L (5.18 US qt, 4.31 Imp.qt)Transfer gear oil:Type:
SAE 80 API GL-4 Hypoid gear oil
Quantity:
0.55 L (0.58 US qt, 0.48 Imp.qt)Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
17.0 L (4.49 US gal, 3.74 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal, 0.66 Imp.gal)Fuel injection:Throttle body:
Type/quantity:
AC43/1Spark plug (s):Manufacturer/model:
NGK/DPR8EA-9
Manufacturer/model:
DENSO/X24EPR-U9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
72/51 (1.412)
Secondary reduction system:
Chain/belt drive
Secondary reduction ratio:
37/30 × 70/31 (2.785)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U5C4E3E0.book Page 1 Tuesday, September 16, 2008 10:25 AM