2021 YAMAHA YZF1000 engine coolant

DESCRIPTION
2-2
2
Right view12. Tail/brake light (page 6-34)
13. Passenger seat (page 3-11)
14. Coolant reservoir (page 6-12)
15. Rider seat (page 3-11)
16. Shock absorber assembly spring preload
adjusting ring (page 3-15)
17. Fuel tank (page 3-9)
18. Front fork spring preload adjusting bolt (page 3-13)19. Front fork rebound damping force
adjusting screw (page 3-14)
20. Headlight (page 6-33)
21. Engine oil filter cartridge (page 6-9)
22. Brake pedal (page 3-8)
23. Shock absorber assembly rebound
damping force adjusting knob (page 3-16)
24. Rear brake fluid level check window (page 6-23)
E_4sv.book Page 2 Friday, November 10, 2000 3:03 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
EAU01652
Coolant temperature gauge With the key in the “ON” position, the
coolant temperature gauge indicates
the temperature of the coolant. The
coolant temperature varies with chang-
es in the weather and engine load. If
the needle reaches or enters the red
zone, stop the motorcycle and let the
engine cool. (See page 6-42 for further
instructions.)
EC000002
CAUTION:_ Do not operate the engine if it is
overheated. _
EAU00109
Anti-theft alarm (optional) This motorcycle can be equipped with
an optional anti-theft alarm by a
Yamaha dealer. Contact a Yamaha
dealer for more information.
EAU00118
Handlebar switches
EAU00120
Pass switch “PASS”
Press this switch to flash the headlight.
EAU03888
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
1. Coolant temperature gauge
2. Coolant temperature gauge red zone
1. Pass switch “PASS”
2. Dimmer switch “ / ”
3. Turn signal switch “ / ”
4. Horn switch “ ”
E_4sv.book Page 5 Friday, November 10, 2000 3:03 PM

4-1
4
EAU01114
4-PRE-OPERATION CHECKSThe condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
ITEM CHECKS PAGE
Fuel• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.3-9–3-10
Engine oil• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.6-9
Coolant• Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage.6-12–6-13
Front brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.6-21–6-24
Rear brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.6-21–6-24
Clutch• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended fluid to specified level.
• Check hydraulic system for leakage.6-22
Throttle grip• Make sure that operation is smooth.
• Lubricate throttle grip, housing and cables if necessary.
• Check free play.
• If necessary, have Yamaha dealer make adjustment.6-17
E_4sv.book Page 1 Friday, November 10, 2000 3:03 PM

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit .................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Removing and installing cowlings ........................ 6-5
Checking the spark plugs .................................... 6-7
Engine oil and oil filter cartridge .......................... 6-9
Checking the coolant level ................................. 6-12
Cleaning the air filter element ............................ 6-13
Adjusting the carburetors ................................... 6-16
Adjusting the engine idling speed ...................... 6-16
Adjusting the throttle cable free play .................. 6-17
Adjusting the valve clearance ............................ 6-17
Tires ................................................................... 6-17
Cast wheels ....................................................... 6-21
Adjusting the rear brake light switch .................. 6-21
Checking the front and rear brake pads ............. 6-21
Checking the brake fluid level ............................ 6-22
Changing the brake fluid .................................... 6-24
Drive chain slack ................................................ 6-25
Lubricating the drive chain ................................. 6-26
Checking and lubricating the cables .................. 6-27Checking and lubricating the brake and
shift pedals ...................................................... 6-27
Checking and lubricating the brake and
clutch levers .................................................... 6-27
Checking and lubricating the sidestand ............ 6-28
Lubricating the rear suspension ........................ 6-28
Checking the front fork ...................................... 6-29
Checking the steering ....................................... 6-29
Checking the wheel bearings ............................ 6-30
Battery ............................................................... 6-31
Replacing the fuses .......................................... 6-32
Replacing a headlight bulb ................................ 6-33
Replacing the tail/brake light bulb ..................... 6-34
Replacing a turn signal light bulb ...................... 6-35
Supporting the motorcycle ................................ 6-35
Front wheel ....................................................... 6-36
Rear wheel ........................................................ 6-38
Troubleshooting ................................................. 6-40
Troubleshooting charts ...................................... 6-41
E_4sv.book Page 1 Friday, November 10, 2000 3:03 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
EAU03892
NOTE:_ l
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
l
Hydraulic brake and clutch systems
• After disassembling the brake or clutch master cylinders, caliper cylinders or clutch release cylinder, always change
the fluid. Regularly check the brake and clutch fluid levels and fill the reservoirs as required.
• Replace the oil seals on the inner parts of the brake or clutch master cylinders, caliper cylinders and clutch release
cylinder every two years.
• Replace the brake and clutch hoses every four years or if cracked or damaged.
_23 Engine oil
• Change.ÖÖÖÖÖ Ö
24 Engine oil filter cartridge
• Replace.ÖÖÖ
25
*Cooling system• Check coolant level and vehicle for coolant leakage.ÖÖÖÖ Ö
• Change.Every 3 years
26*Front and rear brake
switches• Check operation.ÖÖÖÖÖ Ö
27 Moving parts and cables
• Lubricate.ÖÖÖÖ Ö
28*Lights, signals and
switches• Check operation.
• Adjust headlight beam.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´
1,000 km)
ANNUAL
CHECK
1 10203040
E_4sv.book Page 4 Friday, November 10, 2000 3:03 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
EC000067
CAUTION:_ If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha deal-
er check the vehicle. _11. Turn the engine off, and then
check the oil level and correct it if
necessary.
12. Install the cowling.
EAU03947*
Checking the coolant levelThe coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:_ l
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
l
Make sure that the motorcycle is
positioned straight up when
checking the coolant level. A slight
tilt to the side can result in a false
reading.
_
2. Check the coolant level in the
coolant reservoir.NOTE:_ The coolant should be between the
minimum and maximum level marks. _3. If the coolant is at or below the
minimum level mark, remove the
rider seat (See page 3-11 for seat
removal and installation proce-
dures.), and then open the coolant
reservoir cap.1. Maximum level mark
2. Minimum level mark
3. Coolant reservoir cap
E_4sv.book Page 12 Friday, November 10, 2000 3:03 PM

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

PERIODIC MAINTENANCE AND MINOR REPAIR
6-42
6 Engine overheating
EW000070
WARNING
_ l
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
l
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
_NOTE:_ If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible. _
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
E_4sv.book Page 42 Friday, November 10, 2000 3:03 PM