INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU01574
(Parking)
The steering is locked, and the taillights
and auxiliary lights are on, but all other
electrical systems are off. The key can
be removed.
The steering must be locked before the
key can be turned to “ ”.
ECA00043
CAUTION:@ Do not use the parking position for
an extended length of time, other-
wise the battery may discharge. @
EAU00056
Indicator lights
EAU00061
Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU00063
High beam indicator light “ ”
This indicator comes on when the
headlight high beam is used.
EAU00057
Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
EAU01666
Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
3.8 L . When this occurs, refuel as soon
as possible.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Set the engine stop switch to “ ”
and turn the key to “ON”.
2. Shift the transmission into the neu-
tral position or pull the clutch lever.
3. Push the start switch. If the warn-
ing light does not come on while
pushing the start switch, have a
Yamaha dealer check the electri-
cal circuit.
1. Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn signal indicator light “ ”
4. Fuel level warning light “ ”
5. Oil level warning light “ ”
E_5jj_Functions.fm Page 2 Wednesday, February 2, 2000 5:17 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAU03155
Oil level warning light “ ”
This warning light comes on when the
engine oil level is low.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Set the engine stop switch to “ ”
and turn the key to “ON”.
2. Shift the transmission into the neu-
tral position or pull the clutch lever.3. Push the start switch. If the warn-
ing light does not come on while
pushing the start switch, have a
Yamaha dealer check the electri-
cal circuit.
NOTE:@ l
Even if the oil level is sufficient, the
warning light may flicker when
riding on a slope or during sudden
acceleration or deceleration, but
this is not a malfunction.
l
This model is equipped with a self-
diagnosis device for the oil level
warning light circuit. (See page 3-8
for an explanation of the self-diag-
nosis device.)
@
EAU03156
Coolant temperature warning light
“”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and allow
the engine to cool.
The electrical circuit of the warning light
can be checked according to the fol-
lowing procedure.
1. Set the engine stop switch to “ ”
and turn the key to “ON”.
2. Shift the transmission into the neu-
tral position or pull the clutch lever.
1. Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn signal indicator light “ ”
4. Fuel level warning light “ ”
5. Oil level warning light “ ”
1. Coolant temperature gauge
2. Coolant temperature warning light “ ”
E_5jj_Functions.fm Page 3 Wednesday, February 2, 2000 5:17 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU00143
Start switch “ ”
Push this switch to crank the engine
with the starter.
EC000005
CAUTION:@ See page 5-1 for starting instruc-
tions prior to starting the engine. @
EAU00152
Clutch leverThe clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handle-
bar grip. To engage the clutch, release
the lever. The lever should be pulled
rapidly and released slowly for smooth
clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See page
3-23 for an explanation of the ignition
circuit cut-off system.)
EAU00157
Shift pedalThe shift pedal is located on the left
side of the engine and is used in com-
bination with the clutch lever when
shifting the gears of the 6-speed con-
stant-mesh transmission equipped on
this motorcycle.
1. Clutch lever
1. Shift pedal
E_5jj_Functions.fm Page 10 Wednesday, February 2, 2000 5:17 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-24
3
CD-21E
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “ ”.
3. Turn the key to “ON”.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
NO
NOTE:This check is most reliable if performed with
a warmed-up engine.
YESYES NO
The system is OK.
The motorcycle can be ridden.
YES NO
E_5jj_Functions.fm Page 24 Wednesday, February 2, 2000 5:17 PM
5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
@ l
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.
l
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
l
Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
@
EAU03160
Starting a cold engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:l
The transmission is in the neutral
position.
l
The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
@ l
Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-24.
l
Never ride with the sidestand
down.
@1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “ ”.
EC000035
CAUTION:@ If the fuel level warning light comes
on, check the fuel level, and, if nec-
essary, refuel as soon as possible. @2. Shift the transmission into the neu-
tral position.NOTE:@ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-
cuit. @3. Turn the starter (choke) on and
completely close the throttle. (See
page 3-13 for starter (choke) oper-
ation.)
4. Start the engine by pushing the
start switch.
E_5jj_Operation.fm Page 1 Wednesday, February 2, 2000 5:18 PM
OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU01258
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
EAU00423
ShiftingShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.NOTE:@ To shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it. @
EC000048
CAUTION:@ l
Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.
l
Always use the clutch while
changing gears to avoid dam-
aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
@
1. Shift pedal
N. Neutral position
E_5jj_Operation.fm Page 3 Wednesday, February 2, 2000 5:18 PM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-27
6
EAU00744
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:@ When checking and adjusting the drive
chain slack, the motorcycle should be
positioned straight up and there should
be no weight on it. @
2. Shift the transmission into the neu-
tral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain, and
then measure the drive chain
slack as shown.
4. If the drive chain slack is incorrect,
adjust it as follows.
EAU01251
To adjust the drive chain slack
1. Loosen the axle nut and the chain
puller locknut on each side of the
swingarm.
2. To tighten the drive chain, turn the
adjusting bolt on each side of the
swingarm in direction
a. To loos-
en the drive chain, turn the adjust-
ing bolt on each side of the
swingarm in direction
b, and then
push the rear wheel forward.
a. Drive chain slack
Drive chain slack:
40–50 mm
1. Axle nut
2. Adjusting bolt
3. Locknut
4. Alignment marks
E_5jj_Periodic.fm Page 27 Wednesday, February 2, 2000 5:18 PM
SPECIFICATIONS
8-2
8
Cooling system capacity
(total amount)
2.55 L
Air filterDry type element
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 18 L
Fuel reserve amount 3.8 L
Carburetor
Manufacturer MIKUNI
Model ´ quantity BDSR40 ´ 4
Spark plug
Manufacturer/model NGK / CR9E or
DENSO / U27ESR-N
Gap 0.7–0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 1.581
Secondary reduction system Chain drive
Secondary reduction ratio 2.688
Number of drive chain
sprocket teeth (rear/front) 16/43
Transmission type Constant mesh 6-speed
Operation Left footGear ratio
1st 2.500
2nd 1.842
3rd 1.500
4th 1.333
5th 1.200
6th 1.115
Chassis
Frame type Diamond
Caster angle 24°
Trail 92 mm
Tires
Front
Type Tubeless
Size 120/70 ZR17 (58 W)
Manufacturer/
model Metzeler / MEZ3Y Front
Dunlop / D207FQ
Rear
Type Tubeless
Size 190/50 ZR17 (73 W)
Manufacturer/
model Metzeler / MEZ3Y
Dunlop / D207N
E_5jj_Spec.fm Page 2 Wednesday, February 2, 2000 5:19 PM