Page 23 of 86
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
EAU13220
Fuel Make sure that there is sufficient fuel in
the tank. When refueling, be sure to in-
sert the pump nozzle into the fuel tank
filler hole and to fill the tank to the bot-
tom of the filler tube as shown.
WARNING
EWA10880
Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.
Avoid spilling fuel on the hot en-gine.
CAUTION:
ECA10070
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-es or plastic parts.
EAU13320
CAUTION:
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brandor premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
1. Fuel tank filler tube
2. Fuel level
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
16.0 L (4.23 US gal) (3.52 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal) (0.66 Imp.gal)
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Page 25 of 86
INSTRUMENT AND CONTROL FUNCTIONS
3-11
3 This indicates reserve. With the fuel
cock lever in this position, the fuel re-
serve is made available. Turn the fuel
cock lever to this position if you run out
of fuel while riding. When this occurs,
refuel as soon as possible and be sure
to turn the fuel cock lever back to “ON”!
EAU13620
Starter (choke) knob “” Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the knob in direction (a) to turn on
the starter (choke).
Move the knob in direction (b) to turn off
the starter (choke).CAUTION:
ECA10990
Do not use the starter (choke) for
more than 3 minutes as the exhaust
pipe may discolor from excessive
heat. In addition, extended use of
the starter (choke) will cause after-
burning. If this occurs, turn off thestarter (choke).
EAU14191
Seats Passenger seat
To remove the passenger seatRemove the nut and washer, and then
pull the passenger seat up.
To install the passenger seat1. Insert the projections on the front
of the passenger seat into the
holders as shown and place the
seat in the original position.
2. Install the washer and nut, and
then tighten the nut to the specified
torque.
1. Starter (choke) knob “”
1. Nut
2. Washer
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Page 78 of 86
SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2450 mm (96.5 in)
Overall width:
930 mm (36.6 in)
Overall height:
1105 mm (43.5 in)
Seat height:
710 mm (28.0 in)
Wheelbase:
1625 mm (64.0 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
3400 mm (133.9 in)Weight:With oil and fuel:
249.0 kg (549 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
V-type 2-cylinder
Displacement:
649.0 cm³ (39.60 cu.in)
Bore × stroke:
81.0 × 63.0 mm (3.19 × 2.48 in)
Compression ratio:
9.00 :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:
2.60 L (2.75 US qt) (2.29 Imp.qt)
With oil filter element replacement:
2.80 L (2.96 US qt) (2.46 Imp.qt)Final gear oil:Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.19 L (0.20 US qt) (0.17 Imp.qt)Air filter:Air filter element:
Dry elementFuel:Recommended fuel:
Regular unleaded gasoline onlyFuel tank capacity:
16.0 L (4.23 US gal) (3.52 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal) (0.66 Imp.gal)
Carburetor:Manufacturer:
MIKUNI
Type × quantity:
BDS28 x 2Spark plug (s):Manufacturer/model:
NGK/DPR7EA-9
Manufacturer/model:
DENSO/X22EPR-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:
68/38 (1.789)
Secondary reduction system:
Shaft drive
Secondary reduction ratio:
19/18 × 32/11 (3.071)
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-40
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