2000 YAMAHA YZF1000 spark plugs

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Tool kit................................................................... 6-1
Periodic maintenance and lubrication ................... 6-2
Cowling removal and installation .......................... 6-5
Cowling A.............................................................. 6-5
Cowling B.............................................................. 6-5
Cowling C ............................................................. 6-6
Spark plugs........................................................... 6-7
Engine oil .............................................................. 6-9
Coolant ............................................................... 6-11
Air filter ............................................................... 6-12
Carburetor adjustment ........................................ 6-14
Idle speed adjustment ........................................ 6-15
Throttle cable free play inspection ...................... 6-15
Valve clearance adjustment ................................ 6-16
Tires .................................................................... 6-16
Wheels................................................................ 6-19
Brake light switch adjustment ............................. 6-19
Checking the front and rear brake pads.............. 6-20
Inspecting the brake fluid level............................ 6-21
Brake fluid replacement ...................................... 6-22
Drive chain slack check ...................................... 6-23Drive chain slack adjustment ............................. 6-23
Drive chain lubrication........................................ 6-24
Cable inspection and lubrication ........................ 6-24
Brake and shift pedal lubrication ........................ 6-24
Brake and clutch lever lubrication ...................... 6-25
Sidestand lubrication.......................................... 6-25
Rear suspension lubrication............................... 6-25
Front fork inspection ........................................... 6-26
Steering inspection ............................................ 6-26
Wheel bearings .................................................. 6-27
Battery................................................................ 6-27
Fuse replacement .............................................. 6-28
Headlight bulb replacement ............................... 6-29
Tail/brake light bulb replacement ........................ 6-30
Turn signal light bulb replacement...................... 6-30
Front wheel removal ........................................... 6-31
Front wheel installation ...................................... 6-31
Rear wheel removal ........................................... 6-32
Rear wheel installation ....................................... 6-33
Troubleshooting .................................................. 6-34
Troubleshooting chart......................................... 6-35
E_4sv_PeriodicTOC.fm Page 1 Tuesday, August 31, 1999 3:45 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
EAU00473
PERIODIC MAINTENANCE AND LUBRICATION
CP-01ENO. ITEM CHECKS AND MAINTENANCE JOBSINITIAL
(1,000 km)EVERY
6,000 km
or
6 months
(whichever
comes first)12,000 km
or
12 months
(whichever
comes first)
1
*Fuel line• Check fuel hoses and vacuum hose for cracks or damage.
• Replace if necessary.ÖÖ
2*Fuel filter• Check condition.
• Replace if necessary.Ö
3 Spark plugs• Check condition.
• Clean, regap or replace if necessary.ÖÖÖ
4*Valves• Check valve clearance.
• Adjust if necessary.Every 42,000 km or 42 months
(whichever comes first)
5 Air filter
• Clean or replace if necessary.ÖÖ
6*Clutch• Check operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-4.)
• Correct accordingly. ÖÖÖ
7*Front brake• Check operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-4.)
• Correct accordingly.
• Replace brake pads if necessary.ÖÖÖ
8*Rear brake• Check operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-4.)
• Correct accordingly.
• Replace brake pads if necessary.ÖÖÖ
9*Wheels• Check balance, runout and for damage.
• Rebalance or replace if necessary.ÖÖ
10*Tires• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.ÖÖ
E_4sv_Periodic.fm Page 2 Tuesday, August 31, 1999 3:45 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
EAU01668*
Spark plugsRemoval
1. Remove cowlings A and C. (See
pages 6-5 and 6-6 for removal and
installation procedures.)
2. Remove the spark plug caps.3. Use the spark plug wrench in the
tool kit to remove the spark plugs
as shown.
Inspection
The spark plug is an important engine
component and is easy to inspect. The
condition of the spark plug can indicate
the condition of the engine.
Normally, all spark plugs from the
same engine should have the same
color on the white insulator around the
center electrode. The ideal color at this
point is a medium-to-light tan color for a
motorcycle that is being ridden normal-
ly. If one spark plug shows a distinctlydifferent color, there could be some-
thing wrong with the engine.
Do not attempt to diagnose such prob-
lems yourself. Instead, take the motor-
cycle to a Yamaha dealer. You should
periodically remove and inspect the
spark plugs because heat and deposits
will cause any spark plug to slowly
break down and erode. If electrode ero-
sion becomes excessive, or if carbon
and other deposits are excessive, you
should replace the spark plug with the
specified plug.1. Spark plug cap (´ 4)
1. Spark plug wrench
Specified spark plug:
DR8EA (NGK)
X24ESR-U (DENSO)
E_4sv_Periodic.fm Page 7 Tuesday, August 31, 1999 3:45 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6 Installation
1. Measure the electrode gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the gasket surface. Wipe off
any grime from the threads.
3. Install the spark plugs and tighten
them to the specified torque.
NOTE:@ If a torque wrench is not available when
you are installing a spark plug, a good
estimate of the correct torque is 1/4 to
1/2 turn past finger tight. Have the
spark plug tightened to the specified
torque as soon as possible. @4. Install the spark plug caps.
5. Install the cowlings.
a. Spark plug gapSpark plug gap:
0.6 ~ 0.7 mm
Tightening torque:
Spark plug:
18 Nm (1.8 m·kg)
E_4sv_Periodic.fm Page 8 Tuesday, August 31, 1999 3:45 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU02990*
Troubleshooting chart
EW000125
WARNING
@ Never check the fuel system while smoking or in the vicinity of an open flame. @
Check if there is fuel
in the fuel tank.1. Fuel
Enough fuel.
No fuel.
Go to compression check.
Supply fuel.
Engine doesn’t start, go to compression check.
Use the electric starter.2. Compression
There is compression.
No compression.
Go to ignition check.
Ask a Yamaha dealer to
inspect.
Remove spark plugs
and check electrodes.3. Ignition
Wet.
Dry.
Wipe clean with dry cloth and correct
spark gap or replace spark plugs.
Ask a Yamaha dealer to inspect.
Engine doesn’t start, ask a Yamaha
dealer to inspect.Engine doesn’t start, go to battery
check.Open throttle half-way and start
the engine.
Use the electric starter.4. Battery
Engine turns over
quickly.
Engine turns over
slowly.
Battery good.Check connections or
recharge.
E_4sv_Periodic.fm Page 35 Tuesday, August 31, 1999 3:45 PM

MOTORCYCLE CARE AND STORAGE
7-5
7a. Remove the spark plug caps and
spark plugs.
b. Pour a teaspoonful of engine oil
into each spark plug bore.
c. Install the spark plug caps onto the
spark plugs and place the spark
plugs on the cylinder head so that
the electrodes are grounded. (This
will limit sparking during the next
step.)
d. Turn the engine over several times
with the starter. (This will coat the
cylinder walls with oil.)
e. Remove the spark plug caps from
the spark plugs, install the spark
plugs and then the spark plug
caps.
EWA00003
WARNING
@ When turning the engine over, be
sure to ground the spark plug elec-
trodes to prevent damage or injury
from sparking. @
6. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
7. Check and, if necessary, correct
the tire air pressure, then raise the
motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
8. Cover up the muffler outlet with a
plastic bag to prevent moisture
from entering.9. Remove the battery and fully
charge it. Store it in a cool, dry
place and recharge it once a
month. Do not store the battery in
an excessively cold or warm place
(less than 0 °C or more than
30 °C). For more information, see
“Battery storage” in the chapter
“PERIODIC MAINTENANCE AND
MINOR REPAIRS”.
NOTE:@ Make any necessary repairs before
storing the motorcycle. @
E_4sv_Cleaning.fm Page 5 Tuesday, August 31, 1999 3:47 PM

INDEX
RRear brake pedal ................................... 3-11
Rear shock absorber adjustment ........... 3-17
Rear suspension lubrication................... 6-25
Rear wheel installation........................... 6-33
Rear wheel removal............................... 6-32
Recommended shift points
(for Switzerland only)............................. 5-5
Right view................................................ 2-2SSeats ..................................................... 3-13
Shifting .................................................... 5-4
Shift pedal ............................................. 3-10
Sidestand .............................................. 3-19
Sidestand/clutch switch operation
check .................................................. 3-20
Sidestand lubrication ............................. 6-25
Spark plugs ............................................. 6-7
Specifications .......................................... 8-1
Speedometer ........................................... 3-6
Starter (choke) “ ”.............................. 3-13
Starting a warm engine ............................ 5-4
Starting the engine .................................. 5-1
Start switch .............................................. 3-9
Steering inspection ................................ 6-26
Storage.................................................... 7-4
Storage compartment ............................ 3-15TTachometer ............................................. 3-6
Tail/brake light bulb replacement ........... 6-30
Throttle cable free play inspection ......... 6-15
Tips for reducing fuel consumption .......... 5-5
Tires...................................................... 6-16
Tool kit .................................................... 6-1
Troubleshooting .................................... 6-34
Troubleshooting chart ........................... 6-35
Turn indicator light................................... 3-2
Turn signal light bulb replacement ......... 6-30
Turn signal switch ................................... 3-8VValve clearance adjustment .................. 6-16
Vehicle identification number................... 9-1WWheel bearings ..................................... 6-27
Wheels .................................................. 6-19
E_4svIX.fm Page 2 Tuesday, August 31, 1999 3:49 PM