Periodic maintenance and adjustment
7-10
1
2
3
4
5
67
8
9
10
11
12
EAU19653
Checking the spark plugsThe spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter 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 en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If a spark plug shows signs of electrode
erosion 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 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
Specified spark plug:
NGK/CPR9EA9
1. Spark plug gapSpark plug gap:0.8–0.9 mm (0.031–0.035 in)
Tightening torque: Spark plug:13 N·m (1.3 kgf·m, 9.6 lb·ft)
BS2-9-E2.book 10 ページ ２０１８年８月１０日 金曜日 午前９時３６分
11-1
1
2
3
4
5
6
7
8
9
1011
12
IndexAABS ....................................................... 4-15
ABS warning light.................................... 4-6
Air filter element .................................... 7-16
Auxiliary DC connectors........................ 4-25BBattery................................................... 7-30
Brake and clutch levers, checking and lubricating ........................................... 7-27
Brake and shift pedals, checking and
lubricating ........................................... 7-27
Brake fluid, changing ............................ 7-23
Brake fluid level, checking .................... 7-22
Brake lever ............................................ 4-14
Brake lever free play, checking ............. 7-20
Brake light switches .............................. 7-21
Brake pedal ........................................... 4-15CCables, checking and lubricating .......... 7-26
Canister................................................. 7-11
Care ........................................................ 8-1
Catalytic converter ................................ 4-19
Clutch lever ........................................... 4-14
Clutch lever free play, adjusting ............ 7-20
Coolant.................................................. 7-14
Coolant temperature warning light .......... 4-5DData recording, vehicle ......................... 10-2
Diagnostic connector ............................ 10-2
Dimmer switch ........................................ 4-4
D-mode (drive mode) .............................. 3-1
Drive chain, cleaning and lubricating .... 7-25
Drive chain slack ................................... 7-24
Drive mode switch................................... 4-4
EEngine break-in ...................................... 6-3
Engine idling speed, checking .............. 7-16
Engine oil .............................................. 7-11
Engine serial number............................ 10-1
Engine trouble warning light ................... 4-6FFront and rear brake pads, checking .... 7-21
Front fork, adjusting .............................. 4-21
Front fork, checking .............................. 7-29
Fuel....................................................... 4-17
Fuel consumption, tips for reducing........ 6-3
Fuel tank cap ........................................ 4-16
Fuel tank overflow hose........................ 4-19
Fuses, replacing ................................... 7-31HHandlebar switches ................................ 4-3
Hazard switch ......................................... 4-4
High beam indicator light ........................ 4-5
Horn switch ............................................. 4-4IIdentification numbers .......................... 10-1
Ignition circuit cut-off system ................ 4-26
Immobilizer system ................................. 4-1
Immobilizer system indicator light........... 4-6
Indicator lights and warning lights .......... 4-5LLuggage strap holders .......................... 4-24MMain switch/steering lock........................ 4-2
Maintenance and lubrication, periodic .... 7-5
Maintenance, emission control system... 7-3
Matte color, caution ................................ 8-1
Model label ........................................... 10-2 Multi-function meter unit .......................... 4-7
NNeutral indicator light .............................. 4-5OOil level warning light .............................. 4-5PPanel, removing and installing ................ 7-9
Parking .................................................... 6-4
Part locations .......................................... 2-1
Pass switch ............................................. 4-4QQuick shift indicator light ......................... 4-6
Quick shift system ................................... 3-3SSafety information ................................... 1-1
Seat ....................................................... 4-20
Shifting .................................................... 6-2
Shift pedal ............................................. 4-14
Shock absorber assembly, adjusting .... 4-23
Sidestand .............................................. 4-25
Sidestand, checking an
d lubricating...... 7-28
Spark plugs, checking ........................... 7-10
Special features ...................................... 3-1
Specifications .......................................... 9-1
Starting the engine .................................. 6-1
Steering, checking................................. 7-29
Stop/Run/Start switch.............................. 4-4
Storage.................................................... 8-3
Storage compartment............................ 4-20
Supporting the motorcycle .................... 7-35
Swingarm pivots, lubricating ................. 7-28TThrottle grip and cable, checking and
lubricating ........................................... 7-26
BS2-9-E2.book 1 ページ ２０１８年８月１０日 金曜日 午前９時３６分
