PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
65. Lightly tap the air filter element to
remove most of the dust and dirt,
and then blow the remaining dirt
out with compressed air as shown.
If the air filter element is damaged,
replace it.
6. Insert the air filter element into the
air filter case.
CAUTION:
ECA10480
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) maybecome excessively worn.
7. Install the air filter case cover by in-
stalling the screws.
8. Install the panel and the seat.
EAU21290
Adjusting the carburetors The carburetors are important parts of
the engine and require very sophisticat-
ed adjustment. Therefore, most carbu-
retor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in the
following section, however, may be ser-
viced by the owner as part of routine
maintenance.CAUTION:
ECA10560
The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-mance of or damage to the engine.
1. Air filter elementU5WME2E0.book Page 11 Tuesday, August 3, 2004 11:40 AM
SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2175 mm (85.6 in)
Overall width:
775 mm (30.5 in)
Overall height:
1115 mm (43.9 in)
Seat height:
790 mm (31.1 in)
Wheelbase:
1510 mm (59.4 in)
Ground clearance:
120 mm (4.72 in)
Minimum turning radius:
2800 mm (110.2 in)Weight:With oil and fuel:
247.0 kg (545 lb)Engine:Engine type:
Air cooled 4-stroke, DOHC
Cylinder arrangement:
Forward-inclined parallel 4-cylinder
Displacement:
1251.0 cm³ (76.34 cu.in)
Bore × stroke:
79.0 × 63.8 mm (3.11 × 2.51 in)
Compression ratio:
9.70 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
3.00 L (3.17 US qt) (2.64 Imp.qt)
With oil filter element replacement:
3.35 L (3.54 US qt) (2.95 Imp.qt)Air filter:Air filter element:
Dry elementFuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
21.0 L (5.55 US gal) (4.62 Imp.gal)
Fuel reserve amount:
4.5 L (1.19 US gal) (0.99 Imp.gal)
Carburetor:Manufacturer:
MIKUNI
Type x quantity:
BSR37 x 4Spark plug(s):Manufacturer/model:
NGK/DPR8EA-9
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:
98/56 (1.750)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
39/18 (2.167)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio:
1st:
40/14 (2.857)
2nd:
36/18 (2.000)
3rd:
33/21 (1.571)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
U5WME2E0.book Page 1 Tuesday, August 3, 2004 11:40 AM
INDEXAAir filter element, cleaning..................... 6-10
Anti-theft alarm (optional)........................ 3-7
Auxiliary light bulb, replacing ................ 6-31BBattery................................................... 6-26
Brake and clutch fluid levels,
checking ............................................. 6-18
Brake and clutch fluids, changing ......... 6-19
Brake and clutch levers,
checking and lubricating ..................... 6-23
Brake and shift pedals,
checking and lubricating ..................... 6-22
Brake lever ............................................ 3-10
Brake pedal ........................................... 3-10CCables, checking and lubricating .......... 6-21
Carburetors, adjusting........................... 6-11
Care ........................................................ 7-1
Catalytic converter ................................ 3-13
Centerstand and sidestand,
checking and lubricating ..................... 6-23
Clutch lever ............................................. 3-9
Clutch lever free play ............................ 6-16DDimmer switch ........................................ 3-8
Drive chain, lubricating.......................... 6-21
Drive chain slack ................................... 6-19EEngine break-in ....................................... 5-4
Engine idling speed............................... 6-12
Engine oil and oil filter element ............... 6-8
Engine, starting a warm .......................... 5-2
Engine stop switch .................................. 3-8
FFront and rear brake pads, checking .... 6-17
Front fork, adjusting .............................. 3-16
Front fork, checking .............................. 6-24
Fuel....................................................... 3-11
Fuel cock .............................................. 3-13
Fuel consumption, tips for reducing........ 5-3
Fuel tank breather hose........................ 3-12
Fuel tank cap ........................................ 3-11
Fuses, replacing ................................... 6-27HHandlebar switches ................................ 3-7
Hazard switch ......................................... 3-8
Headlight bulb, replacing ...................... 6-28
Helmet holder ....................................... 3-15
High beam indicator light ........................ 3-4
Horn switch ............................................. 3-8IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-19
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLuggage strap holders .......................... 3-18MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2
Multi-function display .............................. 3-6NNeutral indicator light .............................. 3-3
OOil level warning light .............................. 3-4PPanels, removing and installing .............. 6-5
Parking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch ............................................. 3-8
Periodic maintenance and
lubrication chart .................................... 6-2
Pre-operation check list........................... 4-2RRear brake light switch, adjusting ......... 6-16SSafety information ................................... 1-1
Seat ....................................................... 3-14
Self-diagnosis device .............................. 3-5
Shifting .................................................... 5-3
Shift pedal ............................................... 3-9
Shock absorber assemblies,
adjusting ............................................. 3-17
Sidestand .............................................. 3-18
Spark plugs, checking ............................. 6-7
Specifications .......................................... 8-1
Speedometer........................................... 3-5
Starter (choke) lever.............................. 3-14
Starting a cold engine ............................. 5-1
Start switch.............................................. 3-8
Steering, checking................................. 6-25
Storage.................................................... 7-3
Storage compartment............................ 3-15
Swingarm pivots, lubricating ................. 6-24TTachometer ............................................. 3-5
Tail/brake light bulb, replacing .............. 6-30
U5WME2E0.book Page 1 Tuesday, August 3, 2004 11:40 AM
