2017 YAMAHA YXZ1000R check engine

8-35
8
TIPThe radiator fan automatically switches on
or off according to the temperature of the
coolant in the radiator.
 If the engine overheats, see page 8-67 for
instructions. EBU32400Axle bootsCheck the axle boots for holes or tears.
If any damage is found, have them replaced
by a Yamaha dealer.
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.
1. Front axle boot
1
1
1. Rear axle boot
1
1
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8
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.Clean the surface of the spark plug gasket
and its mating surface, and then wipe off any
grime from the spark plug threads.Specified spark plug:
NGK/CR9EB
1. Spark plug gapSpark plug gap:0.7–0.8 mm (0.028–0.031 in)
Tightening torque: Spark plug:13 N·m (1.3 kgf·m, 9.4 lb·ft)
1
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8
TIPService the air filters more frequently when
operating in wet or dusy 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. Additionally, the fuel injection system
would be affected, resulting in poor engine
performance and possible overheating.
Clean the primary air filter as follows.
1. Remove panel C (page 8-10).
2. Remove the air filter case cover by turn- ing the air filter case cover lock counter-
clockwise.TIPMake sure that the match mark on the cover
lock is aligned with the open match mark on
the air filter case cover.
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8-42
8
EBU35141Cleaning the spark arrester
WARNING
EWB03370Hot exhaust system may cause burns. To
avoid burns or fires, make sure that the en-
gine is stopped and the exhaust system is
cool before cleaning the spark arrester. Do
not start the engine while cleaning the ex-
haust system. 1. Remove the tailpipe cover by removingthe tailpipe cover bolts.
1. Air filter case check hose
1. Air filter case check hose
1
1
1. Tailpipe cover
2. Tailpipe cover bolt
1
2
2
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8-44
8
8. Install the tailpipe cover bolts and tightenthem to the specified torque.EBU32460Valve clearanceThe correct valve clearance changes with
use, resulting in improper fuel/air supply or
engine noise. To preven t this, the valve clear-
ance must be adjusted regularly. This adjust-
ment however, should be left to a
professional Yamaha service technician.EBU32470BrakesReplacement of brake components requires
professional knowledge. Brake service
should be performed by a Yamaha dealer.
WARNING
EWB02572Operating with improperly serviced or ad-
justed brakes could lead to a loss in brak-
ing ability and an accident. EBU35150Checking the front and rear brake padsCheck each brake pad for damage and mea-
sure the lining thickness. If a brake pad is
damaged or if the lining thickness is less than
1.0 mm (0.04 in), have a Yamaha dealer re-
place the brake pads as a set.
The wheels need to be removed to check the
brake pads. (See pages 8-54, 8-56 for wheel
removal and installation procedures.)
Tightening torque: Tailpipe cover bolt:8 N·m (0.8 kgf·m, 5.8 lb·ft)
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8
EBU35910Troubleshooting chartsStarting problems or poor engine performanceCheck the fuel level in
the fuel tank.1. Fuel
There is enough fuel.There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs. Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
DryWet
Operate the electric starter.
Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
The engine does not start.
Check the ignition.
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8
Engine overheating
Wait for the engine to cool before removing the radiator cap. WARNING! If the engine is not
cool when removing the radiator cap, hot fluid and steam could blow out under pressure
and burn you.
[EWB03460]
Place a thick rag over the cap and remove the cap slowly to allow any re-
maining pressure to escape.
TIPIf it is difficult to get the recommended coolant, tap water can be used temporarily, 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
coolant reservoir and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See TIP.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
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12-1
12
INDEX
AAccelerator pedal ......................................................... 4-20
Accelerator pedal, checking ........................................ 8-48
Accelerator pedal, Pre-operation check ........................ 5-6
Air filter ......................................................................... 8-37
Air filter case hoses, cleaning ...................................... 8-41
Auxiliary DC jack .......................................................... 4-54
Axle boots .................................................................... 8-35BBasic guide for safe use ................................................ 7-1
Battery, Periodic maintenance .................................... 8-56
Bead lock, checking and tightening (YXZ10YESH) ..... 8-54
Brake and YCC-S clutch fluid levels, checking ........... 8-45
Brake fluid, replacing ................................................... 8-47
Brake light switch ........................................................ 8-50
Brake pedal .................................................................. 4-21
Brake pedal, checking ................................................. 8-48
Brakes, Periodic maintenance ..................................... 8-44
Brakes, Pre-operation check ......................................... 5-3CCable, inspecting and lubrication ................................ 8-50
Cargo bed .................................................................... 4-32
Cleaning ......................................................................... 9-1
Control cables, Pre-operation check ............................. 5-8
Coolant, Periodic maintenance ................................... 8-33
Coolant, Pre-operation check ........................................ 5-6
Coolant temperature warning light ................................ 4-4
Cup holders ................................................................. 4-31
DDifferential gear lock indicator light ............................... 4-3
Differential gear oil, Periodic maintenance .................. 8-31
Differential gear, Pre-operation check ........................... 5-6
Doors ........................................................................... 4-25
Drive mode, selecting .................................................... 6-9
Driver seat position ...................................................... 4-27
Drive select lever and shift paddles, Pre-operation check ........................................................................... 5-7
Drive shaft universal joint, lubrication .......................... 8-53
Drivetrain icon ................................................................ 4-3EEngine break-in .............................................................. 6-1
Engine oil and oil filter, Periodic maintenance ............. 8-15
Engine oil, Pre-operation check .................................... 5-5
Engine trouble warning light .......................................... 4-5
EPS warning light .......................................................... 4-5FFinal gear oil, Periodic maintenance ............................ 8-29
Final gear, Pre-operation check .................................... 5-6
Fittings and fasteners, Pre-operation check ................. 5-8
Flag pole bracket ......................................................... 4-33
Front and rear brake pads, checking .......................... 8-44
Fuel, Pre-operation check ............................................. 5-3
Fuel tank cap ............................................................... 4-24
Fuse, replacing ............................................................ 8-61GGlove compartment ..................................................... 4-28HHalf clutch indicator light ............................................... 4-6
Headlight beam, adjusting ........................................... 8-63
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