2021 YAMAHA YXZ1000R maintenance

9-37
9
EBU35121Checking the spark plugsThe spark plug is an important engine com-
ponent which should be periodically
checked, preferably by a Yamaha dealer.
Since heat and deposits will cause any spark
plug to slowly erode, the spark plugs should
be removed and checked in accordance with
the periodic maintenance chart for the emis-
sion control system. In addition, the condition
of the spark plugs can reveal the condition of
the engine. The porcelain insulator around the center
electrode of each spark plug should be a me-
dium-to-light tan color (the ideal color when
the vehicle is ridden normally), and all spark
plugs installed in the engine should have a
similar color. If any spark plug shows a dis-
tinctly different color, the engine could be op-
erating improperly. Do not attempt to
diagnose such problems yourself. Instead,
have a Yamaha dealer check the vehicle.
If a spark plug shows signs of electrode ero-
sion and excessive carbon or other deposits,
it should be replaced.
Before installing a spark plug, the spark plug
gap should be measured with a wire thick-
ness gauge and, if necessary, adjusted to
specification.1. Rear axle boot
1
1
Specified spark plug:
NGK/CR9EB
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9
EBU38320Air filter maintenanceThis model is equipped with two air filter ele-
ments, a primary foam-type air filter and a
secondary paper-type air filter.
The primary air filter is easily accessed and
should be cleaned and oiled every 300–600
km (200–400 mi).
The secondary air filter is more difficult to ac-
cess, cannot be cleaned, and should be re-
placed by a Yamaha dealer every 2000–5000
km (1200–3000 mi).
TIPService the air filters more frequently when
operating in wet or dusty environments. Whenever air filter maintenance is performed:
check the air inlet for obstructions and the
air filter case for dirt and foreign matter.
 check the air filter case check hoses for dirt
or water and clean as necessary.
 check the air filter cas e joints and the rub-
ber joints to and from the throttle body for
proper fit and sealing.
 tighten all fittings securely to avoid the pos-
sibility of unfiltered air entering the engine.NOTICEECB02270Never operate the engine with the air filter
element removed. Doing so would allow
unfiltered air to enter, causing rapid en-
gine wear and possible engine damage.
1. Primary air filter
2. Secondary air filter
1
2
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9
WARNING
EWB03910Improper maintenance can result in loss of
braking ability or clutch operation. Ob-
serve these precautions:
Insufficient brake or clutch fluid may al-
low air to enter the brake or clutch sys-
tem, reducing braking or clutch
performance.
 Clean the filler caps before removing.
Use only DOT 4 brake fluid from a sealed
container.
 Use only the specified brake fluid; other-
wise, the rubber seals may deteriorate,
causing leakage.
 Refill with the same type of brake fluid.
Adding a brake fluid other than DOT 4
may result in a harmful chemical reac-
tion. 
Be careful that water or dust does not
enter the brake or clutch fluid reservoir
when refilling. Water will significantly
lower the boiling point of the fluid and
may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces
or plastic parts. Always clean up spilled
fluid immediately. As the brake pads wear, it is normal for the
brake fluid level to gradually go down. A low
brake fluid level may indicate worn brake
pads or brake system leakage; therefore, be
sure to check the brake pads for wear and the
brake system for leakage. A low clutch fluid
level may indicate clutch system leakage;
therefore, be sure to check the clutch system
for leakage. If the brake or clutch fluid level
goes down suddenly, have a Yamaha dealer
check and repair the vehicle before any fur-
ther operation.
UB5J7CE0.book Page 48 Thursday, November 26, 2020 1:37 PM

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9
EBU35170Brake and clutch fluid replacementComplete fluid replacement should be done
only by trained Yamaha service personnel.
Have a Yamaha dealer replace the following
components during periodic maintenance or
when they are damaged or leaking.
Replace the oil seals every two years.
 Replace the brake and clutch hoses every
four years.EBU35182Checking the clutch pedalThe clutch pedal should operate smoothly
and spring back to position when released.
When depressed, it should offer resistance
before reaching the floorboard. If the pedal
offers little resistance when depressed, or if
the transmission grinds gears when shifting,
have a Yamaha dealer check the vehicle.
TIPDon’t forget to have your Yamaha dealer
check the clutch and transmission as a whole
at the intervals specified in the periodic main-
tenance chart. EBU32531Checking the brake pedalHave a Yamaha dealer check the brakes at
the intervals specified in the periodic mainte-
nance chart. There should be no free play in1. Clutch pedal
2. No clutch pedal free play
1
2
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9-53
9
EBU35200Pedal lubricationThe pivoting parts of the brake, clutch, and
accelerator pedals should be lubricated peri-
odically to prevent rust and ensure smooth
operation.
EBU32583Checking the stabilizer bushesThe stabilizer bushes must be checked for
cracks or damage at the intervals specified in
the periodic maintenance chart. Have a
Yamaha dealer replace the stabilizer bushes if necessary.
Front
Recommended lubricant: Lithium-soap-based grease
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12
EBU32775
CONSUMER INFORMATION
EBU38330Vehicle data recordingThis model’s control unit(s) store certain vehi-
cle data to assist in the diagnosis of malfunc-
tions and for research, statistical analysis and
development purposes.
Although the sensors and recorded data will
vary by model, the main data points are:
Vehicle status and engine performance
data
 Fuel-injection and emission-related data
This data will be uploaded only when a spe-
cial Yamaha diagnostic tool is attached to the
vehicle, such as when maintenance checks or
service procedures are performed.
Vehicle data uploaded will be handled appro-
priately according to the following Privacy
Policy. Privacy Policy
Yamaha will not disclose this data to a third party except in the following cases. In addi-
tion, Yamaha may provide vehicle data to a
contractor in order to outsource services re-
lated to the handling of vehicle data. Even in
this case, Yamaha will require the contractor
to properly handle the vehicle data we provid-
ed and Yamaha will appropriately manage the
data.
 With the consent of the vehicle owner
 Where obligated by law
 For use by Yamaha in litigation
 When the data is not related to an individual
vehicle nor owner
https://www.yamaha-motor.eu/eu/privacy/
privacy-policy.aspx
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13
INDEX
AAccelerator pedal ......................................................... 5-18
Accelerator pedal, checking ........................................ 9-50
Accelerator pedal, Pre-operation check ........................ 6-7
Air filter ......................................................................... 9-39
Air filter case hoses, cleaning ...................................... 9-43
Auxiliary DC jack .......................................................... 5-43
Axle boots .................................................................... 9-36BBasic guide for safe use ................................................ 8-1
Battery, Periodic maintenance .................................... 9-58
Brake and clutch fluid levels, checking ....................... 9-47
Brake fluid, replacing ................................................... 9-49
Brake light switch, adjusting ........................................ 9-52
Brake pedal .................................................................. 5-19
Brake pedal, checking ................................................. 9-49
Brakes, Periodic maintenance ..................................... 9-45
Brakes, Pre-operation check ......................................... 6-3
Brake/tail light .............................................................. 9-66CCable, inspecting and lubrication ................................ 9-52
Cargo bed .................................................................... 5-27
Cleaning ....................................................................... 10-1
Clutch pedal ................................................................. 5-18
Clutch pedal, checking ................................................ 9-49
Clutch, Pre-operation check .......................................... 6-3
Control cables, Pre-operation check ............................. 6-8
Coolant, Periodic maintenance ................................... 9-34
Coolant, Pre-operation check ........................................ 6-6Coolant temperature warning light ................................ 5-4
Cup holders ................................................................. 5-26
DData recording, vehicle ................................................ 12-1
Differential gear lock indicator light ............................... 5-3
Differential gear oil, Periodic maintenance .................. 9-32
Differential gear, Pre-operation check ........................... 6-6
Doors ........................................................................... 5-21
Drive mode, selecting .................................................... 7-7
Driver seat position ...................................................... 5-23
Drive shaft universal joint, lubrication .......................... 9-55
Drivetrain icon ................................................................ 5-3EEngine break-in .............................................................. 7-1
Engine oil and oil filter, Periodic maintenance ............. 9-16
Engine oil, Pre-operation check .................................... 6-6
Engine trouble warning light .......................................... 5-5
EPS warning light .......................................................... 5-5FFinal gear oil, Periodic maintenance ............................ 9-30
Final gear, Pre-operation check .................................... 6-6
Fittings and fasteners, Pre-operation check ................. 6-8
Flag pole bracket ......................................................... 5-28
Four–wheel drive knob (On–Command 4WD) ............. 5-17
Front and rear brake pads, checking .......................... 9-46
Fuel, Pre-operation check ............................................. 6-4
Fuel tank cap ............................................................... 5-21
Fuse, replacing ............................................................ 9-63GGlove compartment ..................................................... 5-25
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13
HHeadlight beam, adjusting ........................................... 9-65
Headlights .................................................................... 9-65
Helmet reminder light .....................................................5-6
High beam indicator light ............................................... 5-3
Hood ............................................................................ 9-10IIdentification numbers ................................................... 1-1
Indicator lights and warning lights ................................. 5-2
Instruments, lights and switches, Pre-operation check ........................................................................... 6-8JJump-starting ............................................................... 9-61LLabel locations ............................................................... 2-1
Light switch .................................................................. 5-16
Loading ..........................................................................7-9MMain switch .................................................................... 5-1
Maintenance and lubrication chart ................................9-6
Maintenance chart, emission control system ................ 9-4
Maintenance charts ....................................................... 9-4
Model label ..................................................................... 1-1
Multi-function meter unit ................................................ 5-7NNeutral indicator light .....................................................5-2OOwner’s Manual and tool kit .......................................... 9-2PPanels .......................................................................... 9-10
Parking ........................................................................... 7-9 Parking brake indicator light .......................................... 5-3
Parking brake lever ...................................................... 5-19
Parking brake lever free play, adjusting ....................... 9-51
Parking brake pads, checking ..................................... 9-46
Passenger handhold, Pre-operation check ................... 6-7
Pedal, lubrication ......................................................... 9-53
RRear knuckle upper and lower pivot, lubrication ......... 9-55
Reverse gear lock lever ................................................ 5-20
Reverse indicator light ................................................... 5-2SSafety information .......................................................... 3-1
Seat belt reminder light .................................................. 5-6
Seat belts ..................................................................... 5-24
Seat belts, Pre-operation check .................................... 6-7
Seats ............................................................................ 5-21
Shift lever ..................................................................... 5-20
Shift lever operation and reverse driving ....................... 7-3
Shift lever, Pre-operation check .................................... 6-8
Shift light ........................................................................ 5-4
Shock absorbers, front ................................................ 5-28
Shock absorbers, rear ................................................. 5-36
Spark arrester, cleaning ............................................... 9-44
Spark plugs, checking ................................................. 9-37
Specifications .............................................................. 11-1
Stabilizer bushes, checking ......................................... 9-53
Starting the engine ......................................................... 7-2
Steering, Pre-operation check ....................................... 6-7
Steering shaft, lubrication ............................................ 9-55
Steering wheel position ................................................ 5-23
Storage ........................................................................ 10-2
Storage compartments ................................................ 5-25
UB5J7CE0.book Page 2 Thursday, November 26, 2020 1:37 PM