2018 YAMAHA YXZ1000R engine

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8
TIPOil will flow out immediately when the drain
bolt is loosened. Take care not to lose the
bolt. 4. After draining the oil, install the transmis-sion oil drain bolt with a new gasket.
5. Tighten the drain bolt to the specified torque. 6. Check the O-ring for damage, and re-
place it if necessary.
7. Refill the transmission with the specified amount of the recommended oil.
8. Install the transmission oil filler cap.
9. Start the engine and let it idle while checking for oil leakage.
10. Stop the engine and check the oil level one last time.
EBU36051Final gear oilCheck the oil level and change the final gear
oil at the intervals specified in the general
maintenance and lubrication chart.
1. Transmission oil drain bolt
2. Gasket2
1
Tightening torque:Transmission oil drain bolt:20 N·m (2.0 kgf·m, 15 lb·ft)
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TIPGL-4 is a quality and additive rating; GL-5
rated hypoid gear oils may also be used.
 If desired, an SAE 80W-90 hypoid gear oil
may be used instead. 6. Check the oil filler bolt gasket for dam-
age, and replace it if necessary.
7. Install the differential gear oil filler bolt and its gasket, and then tighten the bolt
to the specified torque.
8. Check for oil leakage. If oil leakage is found, check for the cause.
EBU35111CoolantThe coolant level should be checked regular-
ly. In addition, the coolant must be changed
at the intervals specified in the periodic main-
tenance chart.TIPIf genuine Yamaha coolant is not available,
use an ethylene glycol antifreeze containing
corrosion inhibitors for aluminum engines and
mix with distilled water at a 1:1 ratio.
Tightening torque:Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
Recommended coolant:YAMALUBE coolant
Coolant quantity: Coolant reservoir (up to full level):0.31 L (0.33 US qt, 0.28 Imp.qt)
Radiator (including all routes): 3.75 L (3.96 US qt, 3.30 Imp.qt)
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NOTICEECB02190Mix antifreeze with distilled water only.
However, if distilled water is not available,
soft water may be used for refilling. Do not
use hard water or salt water since they are
harmful to the engine. To check the coolant level1. Park the vehicle on a level surface.
2. Remove the hood. (See page 8-11.)
3. Wait for the engine to cool for an accurate reading.
4. Look at the coolant level in the coolant
reservoir. 5. If the coolant is at or below the minimum
level mark, remove the coolant reservoir
cap and add coolant to the maximum lev-
el mark. NOTICE: If coolant is not avail-
able, use distilled water or soft tap
water instead. Do not use hard water
or salt water since they are harmful to
the engine. If water has been used in-
stead of coolant, replace it with cool-
ant as soon as possible, otherwise the
cooling system will not be protected
1. Coolant reservoir cap
2. Maximum level mark
3. Minimum level mark
1
32
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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.
Specified spark plug:
NGK/CR9EB1. Spark plug gap
1
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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 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 8-11).
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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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. 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 8-55, 8-57 for wheel
removal and installation procedures.)
Tightening torque: Tailpipe cover bolt:8 N·m (0.8 kgf·m, 5.9 lb·ft)
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4. Using a charged 12-volt battery, connectthe positive lead of the jumper cable to
the positive terminal of the battery in the
YXZ1000R and the other end of the pos-
itive lead to the positive terminal of the
charged battery.
5. Connect the negative lead of the jumper cable to the negative terminal of the
charged battery and the other end of the
negative lead to an unpainted metal sur-
face of the passenger seat frame near the
center console in the YXZ1000R. 6. Start the engine. (See page 6-2.)
7. After the engine starts, disconnect the
negative lead of the jumper cable from
the seat frame and charged battery, and
then disconnect the positive lead of the
jumper cable from the charged battery
and the battery in the YXZ1000R.
8. Install the seat cushion and the panel.1. Jumper cable positive lead
1
1. Jumper cable negative lead
1
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