1999 YAMAHA YZF-R7 length

1 - 4
INSTRUMENT AND CONTROL FUNCTIONS
INSTRUMENT AND CONTROL FUNCTIONS
EAU00029
Main switch/Steering lock
The main switch controls the ignition
and lighting systems. Its operation is
described below.
EAU00036
ON
Electrical circuits are switched on. The
engine can be started. The key cannot
be removed in this position.
EAU00038
OFF
All electrical circuits are switched off.
The key can be removed in this posi-
tion.
EAU00040
LOCK
The steering is locked in this position
and all electrical circuits are switched
off. The key can be removed in this po-
sition. To lock the steering, turn the
handlebars all the way to the left. While
pushing the key into the main switch,
turn it from “OFF” to “LOCK” and re-
move it. To release the lock, turn the
key to “OFF” while pushing.
1. Push
2. Turn
EW000016
WARNING

Never turn the key to “OFF” or
“LOCK” when the motorcycle is
moving. The electrical circuits will
be switched off which may result in
loss of control or an accident. Be
sure the motorcycle is stopped be-
fore turning the key to “OFF” or
“LOCK”.
EAU01574
(Parking)
The steering is locked in this posi-
tion, and the taillights and auxiliary
lights come on, but all other circuits
are off. The key can be removed in
this position.
To use the parking position, first
lock the steering, then turn the key
to “ ”. Do not use this position for
an extended length of time as the
battery may discharge.
1.
Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn indicator light “ ”
4. Fuel indicator light “ ”
EAU00056
Indicator lights
EAU00061
Neutral indicator light “ ”
This indicator comes on when the
transmission is in neutral.
EAU00063
High beam indicator light “ ”
This indicator comes on when the
headlight high beam is used.
EAU00057
Turn indicator light “ ”
This indicator flashes when the turn
switch is moved to the left or right.
EAU01154
Fuel indicator light “ ”
When the fuel level drops below
approximately 4.8 L, this light will
come on. When this light comes
on, fill the tank at the first opportuni-
ty. This light circuit can be checked
by the procedure on page 1-7.
If there is a shortcircuit or disconti-
nuity at the thermistor, the fuel indi-
cator light will flash 8 times and
then stay off for 3 seconds repeat-
edly.

1 - 12
OPERATION AND IMPORTANT RIDING POINTS
OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
lBefore riding this motorcycle,
become thoroughly familiar
with all operating controls and
their functions. Consult a
Yamaha dealer regarding any
control or function that you do
not thoroughly understand.
lNever start your engine or let it
run for any length of time in a
closed area. The exhaust fumes
are poisonous and can cause
loss of consciousness and
death within a short time. Al-
ways operate your motorcycle
in an area with adequate venti-
lation.
lBefore starting out, always be
sure the sidestand is up. Fail-
ure to retract the sidestand
completely can result in a seri-
ous accident when you try to
turn a corner.
EAU01382*
Starting the engine
NOTE:
This motorcycle is equipped with an ig-
nition circuit cut-off system.
The engine can be started only under
one of the following conditions:
lThe transmission is in neutral.
lThe sidestand is up, the transmis-
sion is in gear and the clutch is
disengaged.
The motorcycle must not be ridden
when the sidestand is down.
EW000054
WARNING
Before going through the following
steps, check the function of the sid-
estand switch and clutch switch.
(Refer to page 1-11.)
COPY CF-28ECF-28E
TURN THE MAIN SWITCH TO “ON” AND THE
ENGINE STOP SWITCH TO “ ”.
IF TRANSMISSION IS IN NEUTRAL AND
SIDESTAND IS DOWN,
PUSH THE START SWITCH.
ENGINE WILL START.
RETRACT SIDESTAND AND PUT
TRANSMISSION IN GEAR.
IF TRANSMISSION IS IN GEAR AND
SIDESTAND IS UP,
PULL IN THE CLUTCH LEVER AND PUSH START
SWITCH. ENGINE WILL START.
MOTORCYCLE CAN BE RIDDEN.MOTORCYCLE CAN BE RIDDEN.

GENERAL SPECIFICATIONS
SPEC

2 - 1
SPECIFICATIONS
GENERAL SPECIFICATIONS
Item Standard Limit
Dimensions
Overall length 2,060 mm (81.1 in) ----
Overall width 720 mm (28.3 in) ----
Overall height 1,125 mm (44.3 in) ----
Seat height 840 mm (33.1 in) ----
Wheelbase 1,400 mm (55.1 in) ----
Minimum ground clearance 120 mm (4.72 in) ----
Minimum turning radius 3,800 mm (150 in) ----
Weight
Wet (with oil and a full fuel tank) 207 kg (456 lb) ----
Dry (without oil and fuel) 176 kg (388 lb) ----
Maximum load (total of rider and
accessories) 317 kg (699 lb) ----
2

ENGINE SPECIFICATIONS
SPEC

2 - 6
Valve stem runout ---- 0.01 mm
(0.0004 in)
Valve seat width
Intake 0.9 ~ 1.1 mm (0.035 ~ 0.043 in) 1.6 mm
(0.06 in)
Exhaust 0.9 ~ 1.1 mm (0.035 ~ 0.043 in) 1.6 mm
(0.06 in)
Valve springs
Inner spring
Free length
Intake 32.35 mm (1.27 in) 30.73 mm
(1.21 in)
Exhaust 28.82 mm (1.13 in) 27.37 mm
(1.08 in)
Installed length (valve closed)
Intake 27.96 mm (1.10 in) ----
Exhaust 24.6 mm (0.97 in) ----
Compressed spring force
(installed)
Intake 101 ~ 117 N
(10.30 ~ 11.93 kgf, 22.7 ~ 26.3 lb)----
Exhaust 106 ~ 122 N
(10.81 ~ 12.44 kgf, 23.8 ~ 27.4 lb)----
Spring tilt
Intake ----2.5˚ /1.4 mm
(2.5˚/0.055 in)
Exhaust ----2.5˚ /1.3 mm
(2.5˚/0.051 in)
Winding direction (top view)
Intake Counter clockwise ----
Exhaust Counter clockwise ----Item Standard Limit

ENGINE SPECIFICATIONS
SPEC

2 - 7
Outer springs
Free length
Intake 36.42 mm (1.43 in) 34.60 mm
(1.36 in)
Exhaust 33.91 mm (1.34 in) 32.21 mm
(1.27 in)
Installed length (valve closed)
Intake 32.03 mm (1.26 in) ----
Exhaust 30.25 mm (1.19 in) ----
Compressed spring force
(installed)
Intake 230 ~ 266 N
(23.45 ~ 27.12 kgf, 51.7 ~ 59.8 lb)----
Exhaust 286 ~ 329 N
(29.16 ~ 33.55 kgf, 62.3 ~ 74.0 lb)----
Spring tilt
Intake ----2.5˚ /1.6 mm
(2.5˚/0.063 in)
Exhaust ----2.5˚ /1.5 mm
(2.5˚/0.059 in)
Winding direction (top view)
Intake Clockwise ----
Exhaust Clockwise ----
Cylinders
Cylinder arrangement Forward-inclined, parallel 4-cylinder ----
Bore

´

stroke 72
´
46 mm (2.83
´
1.81 in) ----
Compression ratio 11.4:1 ----
Bore 72.000 ~ 72.008 mm
(2.8346 ~ 2.8350 in)----
Maximum taper ---- 0.05 mm
(0.0016 in)
Maximum out of round ---- 0.05 mm
(0.0016 in) Item Standard Limit

ENGINE SPECIFICATIONS
SPEC

2 - 10
Clutch plates
Thickness 1.5 ~ 1.7 mm (0.059 ~ 0.067 in) ----
Plate quantity 8 ----
Maximum warpage ---- 0.1 mm
(0.004 in)
Clutch springs
Free length 7.1 mm (0.280 in) ----
Spring quantity 1 spring per valve ----
Transmission
Transmission type Constant mesh, 6-speed ----
Primary reduction system Spur gear ----
Primary reduction ratio 88/47 (1.872) ----
Secondary reduction system Chain drive ----
Secondary reduction ratio 43/17 (2.529) ----
Operation Left-foot operation ----
Gear ratios
1st gear 38/17 (2.235) ----
2nd gear 36/19 (1.895) ----
3rd gear 35/21 (1.667) ----
4th gear 33/23 (1.435) ----
5th gear 31/24 (1.292) ----
6th gear 27/23 (1.174) ----
Maximum main axle runout ---- 0.08 mm
(0.003 in)
Maximum drive axle runout ---- 0.08 mm
(0.003 in)
Shifting mechanism
Shift mechanism type Shift drum ----
Maximum shift fork guide bar
bending ---- 0.05 mm
(0.002 in)
Installed shift rod length 294 mm (11.57 in) ----
Air filter type
Dry element ----
Fuel pump
Pump type Electrical ----
Model (manufacturer) 5FL (MITSUBISHI) ----
Output pressure 450 ~ 600 kPa
(4.5 ~ 6.0 kgf/cm
2

, 64 ~ 85 psi)----
Throttle bodies
ID mark 5FL1 ----
Throttle valve #100 ----
Intake vacuum pressure 15.8 ~ 18.4 kPa
(120 ~ 140 mmHg, 4.72 ~ 5.51 in Hg)----
Throttle cable free play (at the
flange of the throttle grip)3 ~ 5 mm (0.12 ~ 0.20 in) ---- Item Standard Limit

CHASSIS SPECIFICATIONSSPEC
2 - 13
Front suspension
Suspension type Telescopic fork ----
Front fork type Coil spring/oil damper ----
Front fork travel 120 mm (4.72 in) ----
Spring
Free length 240 mm (9.45 in) ----
Spacer length 127 mm (5.00 in) ----
Installed length 226 mm (8.90 in) ----
Spring rate (K1) 9.3 N/mm (0.95 kgf/mm, 53.2 lb/in)
Spring stroke (K1) 0 ~ 120 mm (0 ~ 4.72 in) ----
Optional spring available No ----
Fork oil
Recommended oil Suspension oil “01” or equivalent ----
Quantity (each front fork leg) 460 cm
3 (16.2 Imp oz, 15.6 US oz) ----
Level (from the top of the outer
tube, with the outer tube fully
down, and without the fork
spring)170 mm (6.69 in) ----
Damper adjusting rod locknut dis-
tance31 mm (1.22 in) ----
Spring preload adjusting positions
Minimum 0 [0 mm ( 0 in)] ----
Standard 14 [14 mm (0.55 in)] ----
Maximum 18-1/2 [18.5 mm (0.73 in)] ----
Rebound damping adjusting posi-
tions
Minimum* 17 ----
Standard* 6 ----
Maximum* 1 ----
Compression damping adjusting
positions
Minimum* 20 ----
Standard* 6 ----
Maximum* 1 ----
* from the fully turned-in positionItem Standard Limit

CHASSIS SPECIFICATIONSSPEC
2 - 14
Steering
Steering bearing type Angular ball bearings ----
Rear suspension
Suspension type Swingarm (link suspension) ----
Rear shock absorber assembly
typeCoil spring/gas-oil damper ----
Rear shock absorber assembly
travel63 mm (2.48 in) ----
Spring
Free length 160 mm (6.30 in) ----
Installed length 146 mm (5.75 in) ----
Spring rate (K1) 95 N/mm (9.69 kgf/mm, 543 lb/in) ----
Spring stroke (K1) 0 ~ 63 mm (0 ~ 2.48 in) ----
Optional spring available No ----
Standard spring preload gas/air
pressure 1,200 kPa (12 kgf/cm
2, 171 psi) ----
Spring preload adjusting positions
Minimum 0 [11 mm (0.43 in)] ----
Standard 6 [14 mm (0.55 in)] ----
Maximum 20 [21 mm (0.84 in)] ----
Rebound damping adjusting posi-
tions
Minimum* 50 ----
Standard* 10 ----
Maximum* 0 ----
Compression damping adjusting
positions
Minimum* 25 ----
Standard* 10 ----
Maximum* 0 ----
* from the fully turned-in position
Swingarm
Free play (at the end of the swing-
arm)
Radial ---- 1 mm
(0.04 in)
Axial ---- 1 mm
(0.04 in)
Drive chain
Model (manufacturer) 50ZVM (DAIDO) ----
Link quantity 118 ----
Drive chain slack 40 ~ 50 mm (1.57 ~ 1.97 in) ----
Maximum ten-link section 150.1 mm (5.91 in) ----Item Standard Limit