1999 YAMAHA YZF-R7 oil level

1 - 5
INSTRUMENT AND CONTROL FUNCTIONS
4 681012
14
x1000r/min
0
1 12
3 3
4

1. Warning light
2. Oil level symbol “ ”
3. Coolant temperature symbol “ ”
4. Engine trouble symbol “ ”
EAU01564
Warning light
This indicator light has three functions.
l
The light will come on and symbol
“ ” will flash if the engine oil
level is low.
If this symbol flashes, stop the en-
gine immediately and fill it with oil
to the specified level.
l
The light will come on and symbol
“ ” will flash if trouble occurs in
a monitoring circuit. In such a
case, take the motorcycle to a
Yamaha dealer to have the self-
diagnostic systems checked.
l
The light will come on and symbol
“ ” will flash if the coolant tem-
perature is too high. The following
chart shows the conditions of the
indicator light, symbol and tem-
perature display in accordance to
coolant temperature.
The light circuit can be checked by the
procedure on page 1-6.
EC000118
CAUTION:

l
Do not run the motorcycle until
you know it has sufficient en-
gine oil.
l
Do not run the motorcycle if the
engine is overheated.
NOTE:

Even if the oil is filled to the specified
level, the indicator light may flicker
when riding on a slope or during sud-
den acceleration or deceleration, but
this is normal.
CB-74ECB-74E
Coolant
temperatureDisplay Conditions What to do
~ 39 ˚CSymbol is on and “LO” is
displayed.OK. Go ahead with riding.
40 ˚C ~ 120 ˚CSymbol is on and temper-
ature is displayed.OK. Go ahead with riding.
121 ˚C ~ 139 ˚CSymbol and temperature
flash.
Warning light comes on.Stop the motorcycle and al-
low it to idle until coolant tem-
perature goes down.
If the temperature does not
go down, stop the engine.
140 ˚C ~ Symbol and message
“HI” flash.
Warning light comes on.Stop the engine and allow it
to cool. Seen page 1-19 if the
engine overheats.
—Symbol and message
“Err” flash.
Warning light comes on.Ask a Yamaha dealer to in-
spect the motorcycle.
C
C
C
C
C

1 - 6
INSTRUMENT AND CONTROL FUNCTIONS
Warning light circuit check
CB-75ECB-75E
Warning light comes on. After a few seconds:Warning light does not come on.
Have a Yamaha
dealer inspect the
electrical circuit.
Turn the main switch to “ON”.
Have a Yamaha dealer inspect
the electrical circuit.
If symbol “ ” is on, check the
engine temperature. (See page 1-5.)
Warning light goes off.
No symbol is on.Symbol “ ”,
“ ” “ ” is on.
OK. Go ahead
with riding.
Warning light does not go off.
If symbol “ ”
is on, inspect the
oil level.
Oil level is OK.Oil level is low.
Have a Yamaha dealer
inspect the electrical
circuit.Supply
recommended
engine oil.
If the engine is hot,
allow it to cool and see
“Engine overheating”
in the troubleshooting
chart on page 1-19 for
instructions.If the engine
temperature is
normal, have a
Yamaha dealer
inspect the
electrical circuit.
If symbol “ ” is on.
Have a Yamaha dealer
inspect the self-
diagnostic systems.

ENGINE SPECIFICATIONS
SPEC

2 - 2
ENGINE SPECIFICATIONS
Item Standard Limit
Engine
Engine type Liquid-cooled, 4-stroke, DOHC ----
Displacement 749 cm
3

----
Cylinder arrangement Forward-inclined parallel 4-cylinder ----
Bore
´
stroke 72
´
46 mm (2.83
´
1.81 in) ----
Compression ratio 11.4:1 ----
Engine idling speed 1,000 ~ 1,200 r/min ----
Vacuum pressure at engine idling
speed15.8 ~ 18.4 kPa
(120 ~ 140 mm Hg, 4.72 ~ 5.51 in Hg)----
Standard compression pressure
(at sea level) 157 kPa
(1.57 kgf/cm
2

, 22.3 psi) at 500 r/min----
Fuel
Recommended fuel Premium unleaded gasoline ----
Fuel tank capacity
Total (including reserve) 23 L (20.2 Imp qt, 24.3 US qt) ----
Reserve only 4.8 L (4.22 Imp qt, 5.07 US qt) ----
Engine oil
Lubrication system Wet sump ----
Recommended oil
Yamalube 4 (20W40) or SAE 20W40 type
SE motor oil (40˚F/5˚C or above)
(Non-Friction modified)
Yamalube 4 (10W40) or SAE 10W40 type
SE motor oil (60˚F/15˚C or below)
(Non-Friction modified)----
Quantity
Total amount 3.6 L (3.2 Imp qt, 3.8 US qt) ----
Without oil filter cartridge
replacement2.6 L (2.3 Imp qt, 2.7 US qt) ----
With oil filter cartridge replace-
ment2.8 L (2.5 Imp qt, 3.0 US qt) ----
Oil pressure (hot) 40 kPa (0.4 kgf/cm
2

, 5.69 psi) at
1,100 r/min ----
Relief valve opening pressure 480 ~ 560 kPa
(4.8 ~ 5.6 kgf/cm
2

, 68.3 ~ 79.7 psi)----
2

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

ELECTRICAL SPECIFICATIONSSPEC
2 - 16
Electric starting system
System type Constant mesh ----
Starter motor
Model (manufacturer) SM-14 (MITSUBA) ----
Power output 0.6 kW ----
Armature coil resistance 0.0015 ~ 0.0025 W----
Brushes
Overall length 10 mm (0.40 in) 3.5 mm
(0.14 in)
Spring force 7.16 ~ 9.52 N
(730 ~ 971 gf, 25.8 ~ 34.3 oz)----
Commutator resistance 0.025 ~ 0.035 W----
Commutator diameter 28 mm (1.10 in) 27 mm
(1.06 in)
Mica undercut 0.7 mm (0.03 in) ----
Starter relay
Model (manufacturer) MS5F-631 (JIDECO) ----
Amperage 180 A ----
Coil resistance 4.18 ~ 4.62 W ----
Horn
Horn type Plain ----
Model (manufacturer) ´ quantity YF-12 (NIKKO) ´ 1 ----
Max. amperage 3 A ----
Turn signal relay
Relay type Full-transistor ----
Model (manufacturer) FE246BH (DENSO) ----
Self-cancelling device built-in No ----
Turn signal blinking frequency 75 ~ 95 cycles/min. ----
Wattage 21 W ´ 2 + 3.4 W ----
Oil level switch model (manufac-
turer)071380-0480 (DENSO) ----
Fuel pump relay model (manufac-
turer)G8R-30Y-J (OMRON) ----
Thermo switch model (manufac-
turer)5EB (NIPPON THERMOSTAT) ----
Fuses (amperage ´ quantity)
Main fuse 30 A ´ 1 ----
Headlight fuse 20 A ´ 1 ----
Signaling system fuse 20 A ´ 1 ----
EFI fuse 20 A ´ 1 ----
ECU fuse 7.5 A ´ 1 ----
Radiator fan fuse 7.5 A ´ 1 ----
Backup fuse (odometer) 7.5 A ´ 1 ---- Item Standard Limit

2 - 28
SPEC
1Left handlebar switch lead
2Starter cable
3Main relay
4Speed sensor
5Throttle stop screw
6Sidestand switch lead
7Oil level switch lead
8Main switch lead
9Headlight and meter sub-wire har-
ness coupler0Horn lead
AHeadlight and meter sub-wire harness lead
BThrottle cable
CClutch hose
DWire harness (to headlight and meter sub-wire harness)
EWire harness
FFuel tank overflow hose
GWater pump breather hose
HCoolant reservoir breather hose
IAir filter case breather hose
CABLE ROUTING

2 - 29
SPEC
JFuel tank breather hose
KCDI unit
LFall detection switch
MFuse box
NRelay unit
Align the portions of the main
switch lead and left handle-
bar switch lead marked with
white tape with the radiator
bracket at the frame.õFasten the starter cable and wire harness with a plastic band.
‚Fasten the oil level switch lead, speed sensor lead, sidestand
switch lead and stator coil assembly lead with a plastic band.
ëFasten the air filter breather hose, fuel tank overflow hose, clutch
hose and fuel tank breather hose with a plastic band.
ä20 mm (0.79 in)
ìRoute the sidestand switch lead behind the water pump breather
hose.
íRoute the oil level switch lead to the outside of the water pump
breather hose guide.
CABLE ROUTING

2 - 31
SPEC
KPickup coil lead
LStator coil lead
MSpeed sensor lead
NSidestand switch lead
OOil level switch lead
PCoolant reservoir breather hose
QWire harness
RWire harness lead (to fall detection
switch coupler)
SWire harness lead (to fuse box)
TStarter motor leadUNeutral switch lead
VGround lead
WCoolant temperature sensor coupler
XThrottle cable
Route the wire harness in front of the ignition coils.
õBe sure that there is no slack in the tail/brake light lead
and rear turn signal leads below the rear fender panel.
‚Align the portions of the wire harness, ground lead and
starter motor lead marked with white tape with the lead
holder.
CABLE ROUTING