1999 YAMAHA YZF-R7 checking oil

EC0A0000
CONTENTS
CHAPTER 1
GENERAL INFORMATION
GIVE SAFETY THE RIGHT OF WAY ........ 1-1
DESCRIPTION ........................................... 1-2
INSTRUMENT AND CONTROL
FUNCTIONS .............................................. 1-4
OPERATION AND IMPORTANT
RIDING POINTS ...................................... 1-12
INCLUDED ACCESSORIES ..................... 1-14
MOTORCYCLE CARE AND
STORAGE ................................................ 1-15
CONSUMER INFORMATION ................. 1-17
TROUBLESHOOTING .............................. 1-18
IMPORTANT INFORMATION ................. 1-20
CHECKING THE CONNECTIONS ........... 1-22
SPECIAL TOOLS ..................................... 1-23
CHAPTER 2
SPECIFICATIONS
GENERAL SPECIFICATIONS .................... 2-1
ENGINE SPECIFICATIONS ....................... 2-2
CHASSIS SPECIFICATIONS ................... 2-11
ELECTRICAL SPECIFICATIONS ............. 2-15
TIGHTENING TORQUES ........................ 2-17
LUBRICATION POINTS AND
LUBRICANT TYPES ................................ 2-22
OIL FLOW CHART ................................... 2-24
COOLANT FLOW CHART ....................... 2-25
CABLE ROUTING .................................... 2-26

3 - 19
CHK
ADJADJUSTING THE THROTTLE CABLE FREE PLAY/
CHECKING THE SPARK PLUGS
Handlebar side
a. Loosen the locknut 4.
b. Turn the adjusting nut 5 in direction
c or d until the specified throttle
cable free play is obtained.
c. Tighten the locknut.
WARNINGWARNING
After adjusting the throttle cable free
play, start the engine and turn the han-
dlebars to the right and to the left to
ensure that this does not cause the
engine idling speed to change.
s s s s s s s s s s s s s s s s s s s s s s s s s s s
Direction cThrottle cable free play
is increased.
Direction dThrottle cable free play
is decreased.
C C
d d
7
7
5
57
7
4
4
EB303040
CHECKING THE SPARK PLUGS
The following procedure applies to all of
the spark plugs.
1. Remove:
• fuel tank
• air filter case cover
Refer to “FUEL TANK AND AIR FIL-
TER”.
• air filter case
Refer to “ELECTRONIC FUEL INJEC-
TION” in chapter 6.
2. Disconnect:
• ignition coil couplers
3. Remove:
• ignition coils
• spark plug
ACHTUNG:CAUTION:
Before removing the spark plugs, blow
away any dirt accumulated in the spark
plug wells with compressed air to pre-
vent it from falling into the cylinders.
4. Check:
• spark plug type
Incorrect ® Change.
Spark plugs
Model (manufacturer)
R0256R-10 (NGK)

3 - 23
CHK
ADJ
CHECKING THE ENGINE OIL LEVEL
EB303070
CHECKING THE ENGINE OIL LEVEL
1. Stand the motorcycle on a level surface.
NOTE:
• Place the motorcycle on a suitable stand.
• Make sure that the motorcycle is
upright.
2. Start the engine, let it idle for several
minutes, and then stop it.
3. Check:
• engine oil level
The engine oil level should be between
the minimum level mark a and maxi-
mum level mark b.
Below the minimum level mark ® Add
the recommended engine oil to the
proper level.
Recommended oil
Refer to the chart for the
engine oil grade which is best
suited for certain atmo-
spheric temperatures.
API standard
SE or higher grade
(Non-Friction modified)
ACHTUNG:CAUTION:
• Engine oil also lubricates the clutch
and the wrong oil types or additives
could cause clutch slippage. There-
fore, do not add any chemical addi-
tives or use engine oils with a grade of
CD c or higher and do not use oils
labeled “ENERGY CONSERVING II” d
or higher.
• Do not allow foreign materials to
enter the crankcase.
4. Start the engine, warm it up for several
minutes, and then turn it off.
5. Check:
• engine oil level
NOTE:
Before checking the engine oil level,
wait a few minutes until the oil has set-
tled.

3 - 25
CHK
ADJ
CHANGING THE ENGINE OIL
9. Fill:
• crankcase
(with the specified amount of the rec-
ommended engine oil)
10.Install:
• engine oil filler cap
11.Start the engine, warm it up for several
minutes, and then turn it off.
12.Check:
• engine
(for engine oil leaks)
13.Check:
• engine oil level
Refer to “CHECKING THE ENGINE OIL
LEVEL”.
Quantity
Total amount
3.6 L (3.2 lmp qt, 3.8 US qt)
Without oil filter cartridge
replacement
2.6 L (2.3 lmp qt, 2.7 US qt)
With oil filter cartridge
replacement
2.8 L (2.5 lmp qt, 3.0 US qt)
14.Check:
• engine oil pressure
t t t t t t t t t t t t t t t t t t t t t t t t t t t
a. Slightly loosen the oil gallery bolt 1.
b. Start the engine and keep it idling
until engine oil starts to seep from the
oil gallery bolt. If no engine oil comes
out after one minute, turn the engine
off so that it will not seize.
c. Check the engine oil passages, the oil
filter cartridge and the oil pump for
damage or leakage. Refer to “OIL
PAN AND OIL PUMP” in chapter 4.
d. Start the engine after solving the
problem(-s) and check the engine oil
pressure again.
e. Tighten the oil gallery bolt to
specification.
s s s s s s s s s s s s s s s s s s s s s s s s s s s
T R..
Oil gallery bolt
20 Nm (2.0 m • kg, 14 ft • lb)
1
1

3 - 26
CHK
ADJCHANGING THE ENGINE OIL/
CHECKING THE CLUTCH FLUID LEVEL
15.Install:
• front cowling
• bottom cowling
Refer to “COWLINGS”.
EB303100
CHECKING THE CLUTCH FLUID LEVEL
1. Stand the motorcycle on a level surface.
NOTE:
• Place the motorcycle on a suitable
stand.
• Make sure that the motorcycle is
upright.
2. Check:
• clutch fluid level
Below the minimum level mark a ®
Add the recommended clutch fluid to
the proper level.
WARNINGWARNING
• Use only the designated clutch fluid.
Other fluids may cause the rubber
seals to deteriorate, causing leakage
and poor clutch performance.
• Refill with the same type of fluid. Mix-
ing fluids may result in a harmful
chemical reaction leading to poor
clutch performance.
• When refilling, be careful that water
does not enter the clutch fluid reser-
voir. Water will significantly lower the
boiling point of the fluid and could
cause vapor lock.
ACHTUNG:CAUTION:
Clutch fluid may damage painted sur-
faces and plastic parts. Always clean up
any split fluid immediately.
NOTE:
In order to ensure a correct reading of
the clutch fluid level, make sure that the
top of the clutch fluid reservoir is hori-
zontal.
Recommended clutch fluid
Brake fluid DOT 4aa

3 - 32
CHK
ADJ
CHECKING THE COOLING SYSTEM
EB303230
CHECKING THE COOLING SYSTEM
1. Remove:
• bottom cowling
• front cowling
Refer to “COWLINGS”.
2. Check:
• upper radiator 1
• lower radiator 2
• radiator inlet hose 3
• radiator outlet hose 4
• radiator outlet pipe 5
• radiator joint hose 6
• oil cooler 7
• oil cooler inlet hose 8
• oil cooler outlet hose 9
• water jacket joint inlet hose 0
• water pump inlet pipe A
• water pump outlet pipe B
Cracks/damage ® Replace.
Refer to “COOLING SYSTEM” in chap-
ter 5.
3. Install:
• front cowling
• bottom cowling
Refer to “COWLINGS”.

3 - 37
CHK
ADJADJUSTING THE REAR BRAKE/
CHECKING THE BRAKE FLUID LEVEL
ACHTUNG:CAUTION:
After adjusting the brake pedal position,
make sure that there is no brake drag.
s s s s s s s s s s s s s s s s s s s s s s s s s s s
3. Adjust:
• rear brake light switch
Refer to “ADJUSTING THE REAR
BRAKE LIGHT SWITCH”.
EB304020
CHECKING THE BRAKE FLUID LEVEL
1. Stand the motorcycle on a level surface.
NOTE:
• Place the motorcycle on a suitable
stand.
• Make sure that the motorcycle is
upright.
2. Check:
• brake fluid level
Below the minimum level mark a ®
Add the recommended brake fluid to
the proper level.
Front brake
õRear brake
WARNINGWARNING
• Use only the designated brake fluid.
Other brake fluids may cause the rub-
ber seals to deteriorate, causing leak-
age and poor brake performance.
• Refill with the same type of brake fluid
that is already in the system. Mixing
brake fluids may result in a harmful
chemical reaction, leading to poor
brake performance.
• When refilling, be careful that water
does not enter the brake fluid reser-
voir. Water will significantly lower the
boiling point of the brake fluid and
could cause vapor lock.
ACHTUNG:CAUTION:
Brake fluid may damage painted sur-
faces and plastic parts. Therefore,
always clean up any spilt brake fluid
immediately.
NOTE:
In order to ensure a correct reading of the
brake fluid level, make sure that the top of
the brake fluid reservoir is horizontal.
Recommended brake fluid
DOT 4

õ

3 - 43
CHK
ADJLUBRICATING THE DRIVE CHAIN/
CHECKING AND ADJUSTING THE STEERING HEAD
EB304100
LUBRICATING THE DRIVE CHAIN
The drive chain consists of many interact-
ing parts. If the drive chain is not main-
tained properly, it will wear out rapidly.
Therefore, the drive chain should be ser-
viced, especially when the motorcycle is
used in dusty areas. This motorcycle has a
drive chain with small rubber O-rings
between each side plate. Steam cleaning,
high-pressure washing, certain solvents,
and the use of a coarse brush can damage
these O-rings. Therefore, use only kerosine
to clean the drive chain. Wipe the drive
chain dry and thoroughly lubricate it with
engine oil or chain lubricant that is suitable
for O-ring chains. Do not use any other
lubricants on the drive chain since they may
contain solvents that could damage the O-
rings.
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
EB304130
CHECKING AND ADJUSTING THE
STEERING HEAD
1. Stand the motorcycle on a level surface.
WARNINGWARNING
Securely support the motorcycle so that
there is no danger of it falling over.
NOTE:
Place the motorcycle on a suitable stand
so that the front wheel is elevated.
2. Check:
• steering head
Grasp the bottom of the front fork legs
and gently rock the front fork.
Looseness/binding ® Adjust the steer-
ing head.