Page 25 of 108
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU00186
CAUTION:_ l
Immediately wipe off spilled fuel
with a clean, dry, soft cloth,
since fuel may deteriorate paint-
ed surfaces or plastic parts.
l
For Germany only: Whenever
replacement is necessary, use a
fuel tank cap of the same spe-
cial design as the original.
_
EAU00191
NOTE:_ If knocking (or pinging) occurs, use
gasoline of a different brand or with a
higher octane grade. _
EAU02955
Fuel tank breather hose Before operating the motorcycle:l
Check the fuel tank breather hose
connection.
l
Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.
l
Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary.
EAU03839
Starter (choke) lever “ ” Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction
a to turn on
the starter (choke).
Move the lever in direction
b to turn off
the starter (choke). Recommended fuel:
Regular unleaded gasoline with a
research octane number of 91 or
higher
Fuel tank capacity:
Total amount:
20 L
Reserve amount:
4.5 L
1. Fuel tank breather hose
1. Starter (choke) lever “ ”
E_4sv.book Page 10 Friday, November 10, 2000 3:03 PM
Page 58 of 108
PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
64. Add coolant or distilled water to
raise the coolant to the specified
level, close the coolant reservoir
cap, and then install the rider seat.
EC000080
CAUTION:_ l
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
l
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.
l
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
_
EW000067
WARNING
_ Never attempt to remove the radia-
tor cap when the engine is hot. _NOTE:_ l
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.
l
If the engine overheats, see
page 6-42 for further instructions.
_
EAU03948*
Cleaning the air filter element The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the rider seat. (See page
3-11 for rider seat removal and in-
stallation procedures.)
2. Remove cowling B from both
sides. (See page 6-5 for cowling
removal and installation proce-
dures.)
3. Remove the fuel tank bolts. Coolant reservoir capacity:
0.23 L1. Bolt (´ 2)
E_4sv.book Page 13 Friday, November 10, 2000 3:03 PM
Page 97 of 108
SPECIFICATIONS
8-2
8
Cooling system capacity (total
amount)
2.7 L
Air filterDry type element
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 20 L
Fuel reserve amount 4.5 L
Carburetor
Manufacturer MIKUNI
Model ´ quantity BDSR38 ´ 4
Spark plug
Manufacturer/model NGK / DR8EA or
DENSO / X24ESR-U
Gap 0.6–0.7 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 1.659
Secondary reduction system Chain drive
Secondary reduction ratio 2.706 (except for D, F, S, SF)
2.765 (for D, F, S, SF)
Number of drive chain
sprocket teeth (front/rear)17/46 (except for D, F, S, SF)
17/47 (for D, F, S, SF)
Transmission type Constant mesh 5-speed
Operation Left footGear ratio
1st 2.571
2nd 1.778
3rd 1.381
4th 1.174
5th 1.037
Chassis
Frame type Diamond
Caster angle 24°
Trail 97 mm
Tires
Front
Type Tubeless tire
Size 120/70 ZR17
Manufacturer/
model Bridgestone / BT50F
Dunlop / D204FN
Michelin / MACADAM 90XM
Metzeler / MEZ1
Metzeler / MEZ2
Rear
Type Tubeless tire
Size 180/55 ZR17
Manufacturer/
model Bridgestone / BT50R
E_4sv.book Page 2 Friday, November 10, 2000 3:03 PM