clutch YAMAHA XV1900A 2009 User Guide

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.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
NOTICE
ECA15080


In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.


Make sure that no foreign mate-rial enters the oil tank.
15. Install the engine oil filler cap.16. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
17. Turn the engine off, and then
check the oil level and correct it if
necessary.
18. Install the rider seat.
EAU20051
Transfer case oil The transfer case must be checked for
oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the vehicle. In addi-
tion, the transfer case oil level should
be checked and the oil must be
changed by a Yamaha dealer at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
1.“CD” specification
2.“ENERGY CONSERVING II”
1
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6
EAU22073
Clutch lever Since this model is equipped with a hy-
draulic clutch, adjusting the clutch lever
free play is not needed. However, it is
necessary to check the clutch fluid level
and check the hydraulic system for
leakage before each ride. (See page
6-16.) If the clutch lever free play does
become excessive, and shifting be-
comes rough or clutch slippage occurs,
causing poor acceleration, there may
be air in the clutch system. If there is air
in the hydraulic system, have a
Yamaha dealer bleed the system be-
fore operating the motorcycle.
EAU22272
Adjusting the rear brake light
switch The rear brake light, which is activated
by the brake pedal, should come on just
before braking takes effect. If neces-
sary, adjust the rear brake light switch
as follows.
Turn the rear brake light switch adjust-
ing nut while holding the rear brake light
switch in place. To make the brake light
come on earlier, turn the adjusting nut
in direction (a). To make the brake light
come on later, turn the adjusting nut in
direction (b).
EAU22390
Checking the front and rear
brake pads The front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
EAU22430
Front brake pads
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear with-
out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that the wear
1. Rear brake light switch
2. Rear brake light switch adjusting nut
1. Brake pad wear indicator groove
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6 indicator grooves have almost disap-
peared, have a Yamaha dealer replace
the brake pads as a set.
EAU22500
Rear brake pads
Check each rear brake pad for damage
and measure the lining thickness. If a
brake pad is damaged or if the lining
thickness is less than 0.8 mm (0.03 in),
have a Yamaha dealer replace the
brake pads as a set.
EAU38630
Checking the brake and clutch
fluid levels Front brake
Rear brakeClutch
Insufficient brake or clutch fluid may al-
low air to enter the brake or clutch sys-
tems, possibly causing them to become
ineffective.
TIPThe rear brake fluid reservoir is locatedunder the rider seat. (See page 3-16.)
Before riding, check that the brake and
clutch fluids are above the minimum
level marks and replenish if necessary.
A low brake or clutch fluid level may in-
dicate brake or clutch system leakage
and/or worn brake pads. If the brake or
clutch levels are low, be sure to check
the brake or clutch systems for leakage
and the brake pads for wear.
1. Lining thickness
1. Minimum level mark
1. Minimum level mark
1. Minimum level mark
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6Observe these precautions:


When checking the brake and
clutch fluid levels, make sure that
the top of each reservoir is level.


Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking or clutch
performance.


Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking or clutch per-
formance.


Be careful that water does not en-
ter the brake or clutch fluid reser-
voir when refilling. Water will
significantly lower the boiling point
of the fluid and may result in vapor
lock.


Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.


As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
EAU22751
Changing the brake and
clutch fluids Have a Yamaha dealer change the
brake and clutch fluids at the intervals
specified in the TIP after the periodic
maintenance and lubrication chart. In
addition, have the oil seals of the brake
and clutch master cylinders and cali-
pers as well as the brake and clutch
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.

Oil seals: Replace every two
years.


Brake and clutch hoses: Replace
every four years.
Recommended brake and clutch flu-
id:
DOT 4 brake fluid
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6
EAU43600
Checking and lubricating the
brake and clutch levers Brake lever
Clutch lever
The operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be lu-
bricated if necessary.
EAU23202
Checking and lubricating the
sidestand The operation of the sidestand should
be checked before each ride, and the
sidestand pivot and metal-to-metal
contact surfaces should be lubricated if
necessary.
WARNING
EWA10731
If the sidestand does not move up
and down smoothly, have a Yamaha
dealer check or repair it. Otherwise,
the sidestand could contact the
ground and distract the operator, re-sulting in a possible loss of control.
Recommended lubricant:
Silicone grease
Recommended lubricant:
Lithium-soap-based grease
U5C4E3E0.book Page 20 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

INDEXAAir filter element .................................... 6-12
Anti-theft alarm (optional)...................... 3-10
Auxiliary DC connector ......................... 3-22
Auxiliary light bulb, replacing ................ 6-28BBattery................................................... 6-22
Brake and clutch fluid levels,
checking ............................................. 6-16
Brake and clutch fluids, changing ......... 6-17
Brake and clutch levers, checking and
lubricating ........................................... 6-20
Brake and shift pedals, checking and
lubricating ........................................... 6-19
Brake lever ............................................ 3-12
Brake pedal ........................................... 3-13CCables, checking and lubricating .......... 6-18
Care ........................................................ 7-1
Catalytic converter ................................ 3-15
Clutch lever .................................. 3-12, 6-15DDimmer switch ...................................... 3-11
Drive belt slack...................................... 6-18EEngine break-in ....................................... 5-3
Engine oil and oil filter cartridge .............. 6-8
Engine stop switch ................................ 3-11
Engine trouble warning light.................... 3-4
EXUP system ........................................ 3-19FFront and rear brake pads, checking .... 6-15
Front fork, checking .............................. 6-21
Fuel ....................................................... 3-14Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose........................ 3-15
Fuel tank cap ........................................ 3-13
Fuses, replacing ................................... 6-24
HHandlebar switches .............................. 3-10
Hazard switch ....................................... 3-11
Headlight bulb, replacing ...................... 6-25
Helmet holder ....................................... 3-17
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-11IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-20
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-4KKey identification number ....................... 9-1LLicense plate light ................................. 6-28MMain switch/steering lock........................ 3-2
Maintenance and lubrication, periodic .... 6-3
Maintenance, emission control system... 6-2
Matte color, caution ................................ 7-1
Model label ............................................. 9-2
Multi-function meter unit ......................... 3-5NNeutral indicator light .............................. 3-4PParking ................................................... 5-4
Part locations .......................................... 2-1
RRear brake light switch, adjusting ......... 6-15
Rear suspension, lubricating ................. 6-21
Rider seat .............................................. 3-16SSafety information ................................... 1-1
SELECT switch ..................................... 3-11
Shifting .................................................... 5-2
Shift pedal ............................................. 3-12
Shock absorber assembly, adjusting .... 3-18
Sidestand .............................................. 3-20
Sidestand, checking and lubricating...... 6-20
Spark plugs, checking ............................. 6-7
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-11
Steering, checking................................. 6-22
Storage.................................................... 7-3
Supporting the motorcycle .................... 6-29TTail/brake light ....................................... 6-27
Throttle cable free play, checking ......... 6-12
Throttle grip and cable, checking and
lubricating ........................................... 6-19
Tires ...................................................... 6-13
Tool kit..................................................... 6-1
Transfer case oil.................................... 6-11
Troubleshooting .................................... 6-29
Troubleshooting chart ........................... 6-31
Turn signal indicator lights ...................... 3-4
Turn signal light bulb, replacing ............ 6-27
Turn signal switch ................................. 3-11VValve clearance..................................... 6-12
U5C4E3E0.book Page 1 Tuesday, September 16, 2008 10:25 AM