check engine YAMAHA XJ6-N 2015 User Guide

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15598
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an acci dent or equipment damag e.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected b y the proce dures provi ded in
this manual, have the vehicle inspecte d b y a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank breather hose and overflow hose for obstructions, cracks or
damage, and check hose connections. 3-16, 3-17
En gine oil • Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 6-10
Coolant • Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage. 6-13
Front brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 6-24, 6-24
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OPERATION AND IMPORTANT RIDING POINTS
5-2
5
a warnin
g or in dicator lig ht remains
on, see pa ge 3-4 for the correspond -
in g warnin g an d in dicator li ght cir-
cuit check.
For ABS models:The ABS warning light should
come on when the main switch is
turned to “ON” and then go off af-
ter traveling at a speed of 10 km/h
(6 mi/h) or higher.
NOTICE
ECA17682
If the ABS warnin g li ght does not
come on an d then go off as ex-
plaine d a bove, see pa ge 3-4 for the
warnin g li ght circuit check.2. Shift the transmission into the
neutral position. The neutral indi-
cator light should come on. If not,
ask a Yamaha dealer to check the
electrical circuit.
3. Start the engine by pushing the start switch.
If the engine fails to start, release
the start switch, wait a few sec-
onds, and then try again. Each
starting attempt should be as
short as possible to preserve the battery. Do not crank the engine
more than 10 seconds on any one
attempt.
NOTICE
ECA11043
For maximum en
gine life, never ac-
celerate har d when the en gine is
col d!
EAU16673
Shiftin gShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.TIPTo shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.1. Shift pedal
2. Neutral position
1
N
2 3
4
5
6
1
2
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OPERATION AND IMPORTANT RIDING POINTS
5-4
5
1600 km (1000 mi) an
d b eyon d
The vehicle can now be operated nor-
mally.
NOTICE
ECA10311
 Keep the en gine speed out of
the tachometer re d zone.
 If any en gine trou ble shoul d oc-
cur durin g the en gine break-in
period , imme diately have a
Yamaha dealer check the vehi-
cle.
EAU17214
Parkin gWhen parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10312
Since the en gine an d exhaust
system can b ecome very hot,
park in a place where ped estri-
ans or chil dren are not likely to
touch them an d b e burne d.
 Do not park on a slope or on soft
groun d, otherwise the vehicle
may overturn, increasin g the
risk of a fuel leak an d fire.
 Do not park near grass or other
flamma ble materials which
mi ght catch fire.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
6
EAU46862
TIPThe annual checks must b e performed every year, except if a kilometer- based maintenance, or for the UK, a
milea ge- base d maintenance, is performe d instead .
 From 50000 km (30000 mi), repeat the maintenance intervals starting from 10000 km (6000 mi).
 Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and tech-
nical skills.
EAU46911
Perio dic maintenance chart for the emission control systemNO. ITEM CHECK OR MAINTENANCE JOB ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)
1 *Fuel line • Check fuel hoses for cracks or
damage. √√√√√
2 *Spark plu gs • Check condition.
• Clean and regap.
√√
• Replace. √√
3 *Va l ve s • Check valve clearance.
•Adjust.
Every 40000 km (24000 mi)
4 *Fuel injection • Adjust engine idling speed and
synchronization. √√√√√√
5 *Air in
duction sys-
tem • Check the air cut-off valve, reed
valve, and hose for damage.
• Replace the entire air induction system if necessary. √√√√√
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6To install the panel
Place the panel in the original position,
and then install the bolts.
EAU19643
Checkin g the spark plu gsThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. 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 medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
1. Panel B
2. Bolt
1
2
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness 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.
TIPIf a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.
EAU46722
En
gine oil an d oil filter car-
tri dgeThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the en gine oil level
1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles.
4. Remove the engine oil dipstick and wipe it clean, insert it back
into the hole (without screwing it
in), and then remove it again to
check the oil level.TIPThe engine oil should be between the
minimum and maximum level marks.
Specifie d spark plu g:
NGK/CR9E1. Spark plug gapSpark plu g g ap:
0.7–0.8 mm (0.028–0.031 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
610. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
TIPAfter the engine is started, the engine
oil level warning light should go off if
the oil level is sufficient.NOTICE
ECA10402
If the oil level warnin g lig ht flickers
or remains on even if the oil level is
correct, imme diately turn the en gine
off an d have a Yamaha d ealer check
the vehicle.11. Turn the engine off, wait a few minutes until the oil settles, and
then check the oil level and cor-
rect it if necessary.
12. Install the cowling.
EAU20071
CoolantThe 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.
EAU46804
To check the coolant level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIPThe coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
 Make sure that the vehicle is posi-
tioned 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.TIPThe coolant should be between the
minimum and maximum level marks.
3. If the coolant is at or below theminimum level mark, remove the
coolant reservoir breather hose
from the guide, and then remove
the coolant reservoir cap.
WARNING! Remove only the
coolant reservoir cap. Never at-
tempt to remove the ra diator
cap when the en gine is hot.
[EWA15162]
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1
2
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
4. Add coolant to the maximum level
mark, and then install the coolant
reservoir cap. NOTICE: If coolant
is not availa ble, use d istilled wa-
ter or soft tap water instea d. Do
not use har d water or salt water
since it is harmful to the en gine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possi ble, other-
wise the coolin g system will not
b e protected against frost an d
corrosion. If water has been
a dde d to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as soon as possi
ble, otherwise the
effectiveness of the coolant will
b e red uced.
[ECA10473]
5. Route the coolant reservoir
breather hose through the guide
as shown.
EAU46824
To chan ge the coolant
1. Place the vehicle on a level sur- face and let the engine cool if nec-
essary.
2. Remove cowling A and panel B. (See page 6-8.) 3. Place a container under the en-
gine to collect the used coolant.
4. Remove the radiator cap retaining bolt, radiator cap retainer and ra-
diator cap. WARNING! Never at-
tempt to remove the ra diator
cap when the en gine is hot.
[EWA10382]
5. Remove the coolant reservoir
breather hose from the guide, and
then remove the coolant reservoir
cap.
1. Coolant reservoir cap
2. Coolant reservoir breather hose
3. Guide
3
1
2
Coolant reservoir capacity (up to
the maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
1. Coolant reservoir breather hose
2. Guide
2
1
1. Radiator cap
2. Radiator cap retaining bolt
3. Radiator cap retainer
2
1
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
66. Remove the coolant reservoir cov-
er and coolant reservoir by remov-
ing the bolts. 7. Drain the coolant from the coolant
reservoir by turning it upside
down.
8. Remove the coolant drain bolt and its gasket to drain the cooling sys-
tem.
9. After the coolant is completely drained, thoroughly flush the cool-
ing system with clean tap water.
10. Install the coolant drain bolt and its new gasket, and then tighten
the bolt to the specified torque. 11. Install the coolant reservoir and its
cover by placing them in the origi-
nal position, and then installing the
bolts.
12. Pour the specified amount of the recommended coolant into the ra-
diator and reservoir.
13. Install the radiator cap.
14. Install the coolant reservoir cap.
15. Start the engine, let it idle for sev- eral minutes, and then turn it off.
16. Remove the radiator cap to check the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radi-
1. Coolant reservoir cap
2. Coolant reservoir breather hose
3. Guide
1. Bolt
2. Coolant reservoir cover
3. Coolant reservoir
3
1
2
23
1
1. Coolant drain bolt
2. GasketTi
ghtenin g torque:
Coolant drain bolt: 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
2
1
Antifreeze/water mixture ratio:
1:1
Recommen ded antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibi-
tors for aluminum engines
Coolant quantity:
Radiator (including all routes):2.00 L (2.11 US qt, 1.76 Imp.qt)
Coolant reservoir (up to the maxi-
mum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6
ator, and then install the radiator
cap, radiator cap retainer and ra-
diator cap retaining bolt.
17. Check the coolant level in the res- ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
18. Route the coolant reservoir breather hose through the guide
as shown. 19. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
20. Install the cowling and the panel.
EAU34426
Replacin g the air filter ele-
mentThe air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas.
1. Remove the seat. (See page 3-18.)
2. Remove the fuel tank bolts, and then lift the fuel tank away from
the air filter case.
3. Remove the air filter case cover by removing the screws. NOTICE:
When removin g the air filter
1. Radiator cap
2. Radiator cap retaining bolt
3. Radiator cap retainer
2
1
3
1. Coolant reservoir breather hose
2. Guide
2
1
1. Fuel tank bolt
1
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