2019 YAMAHA TRACER 900 GT spark plugs

Table of contentsSafety information ............................ 1-1
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Instrument an d control functions ... 3-1
Immobilizer system......................... 3-1
Main switch/steering lock............... 3-2
Handlebar switches ........................ 3-3
Indicator lights and warning lights............................................ 3-5
Cruise control system..................... 3-8
Display .......................................... 3-11
MENU screen ............................... 3-15
D-mode (drive mode).................... 3-25
Clutch lever .................................. 3-25
Shift pedal .................................... 3-26
Quick shift system ........................ 3-26
Brake lever.................................... 3-26
Brake pedal .................................. 3-27
ABS .............................................. 3-27
Traction control system ................ 3-28
Fuel tank cap ................................ 3-30
Fuel ............................................... 3-31
Fuel tank overflow hose ............... 3-33
Catalytic converter ....................... 3-33
Seats ............................................ 3-34
Adjusting the rider seat height...... 3-35
Helmet holder ............................... 3-37 Storage compartment ................... 3-38
Windshield ................................... 3-38
Adjusting the headlight beams ..... 3-38
Handlebar position ....................... 3-39
Adjusting the front fork ................. 3-39
Adjusting the shock absorber
assembly.................................... 3-41
Auxiliary DC jack ........................... 3-43
Auxiliary DC connector ................. 3-44
Sidestand ...................................... 3-44
Ignition circuit cut-off system ....... 3-45
For your safety – pre-operation
checks ............................................... 4-1
Operation an d important ri din g
points ................................................. 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel consumption ................................ 5-4
Engine break-in ............................... 5-4
Parking ............................................ 5-5
Perio dic maintenance an d
a d justment ........................................ 6-1
Tool kit ............................................ 6-2
Periodic maintenance charts .......... 6-3
Periodic maintenance chart for the emission control system .............. 6-3 General maintenance and
lubrication chart .......................... 6-5
Removing and installing the panel............................................ 6-9
Checking the spark plugs ............. 6-10
Canister ........................................ 6-11
Engine oil ...................................... 6-11
Why Yamalube.............................. 6-13
Coolant ......................................... 6-14
Air filter element ............................ 6-15
Checking the engine idling
speed ........................................ 6-15
Checking the throttle grip free play ............................................ 6-16
Valve clearance............................. 6-16
Tires .............................................. 6-16
Cast wheels .................................. 6-19
Adjusting the clutch lever free play ............................................ 6-19
Checking the brake lever free
play ............................................ 6-20
Brake light switches ..................... 6-20
Checking the front and rear brake pads ................................ 6-21
Checking the brake fluid level ...... 6-21
Changing the brake fluid .............. 6-23
Drive chain slack........................... 6-23
Cleaning and lubricating the drive chain ................................. 6-25
Checking and lubricating the cables ........................................ 6-25UB1JE1E0.book Page 1 Thursday, October 11, 2018 10:43 AM

Periodic maintenance an d a djustment
6-10
6
EAU19653
Checkin g the spark plug sThe 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. 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.NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plu
g cap, otherwise
the i gnition coil coupler may get
d amag ed . The spark plu g cap may
b e difficult to remove because the
ru bber seal on the en d of the cap fits
ti g htly. To remove the spark plu g
cap, simply twist it back an d forth
while pullin g it out; to install it, twist
it back an d forth while pushin g it in.
Specified spark plu g:
NGK/CPR9EA9
1. Spark plug gap
Spark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtenin g torque:
Spark plug: 13 N·m (1.3 kgf·m, 9.6 lb·ft)
UB1JE1E0.book Page 10 Thursday, October 11, 2018 10:43 AM

Periodic maintenance an d a djustment
6-36
6
EAU42365
Trou bleshootin g chartsStartin g prob lems or poor en gine performance
Check 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.
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.
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.
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 engine does not start.
Check the ignition.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
DryWet
Operate the electric starter.
UB1JE1E0.book Page 36 Thursday, October 11, 2018 10:43 AM

10-1
10
IndexAABS ....................................................... 3-27
ABS warning light ................................... 3-6
Air filter element .................................... 6-15
Auxiliary DC connector ......................... 3-44
Auxiliary DC jack ................................... 3-43BBattery .................................................. 6-30
Brake and clutch levers, checking
and lubricating .................................... 6-27
Brake and shift pedals, checking and lubricating ........................................... 6-26
Brake fluid, changing ............................ 6-23
Brake fluid level, checking .................... 6-21
Brake lever ............................................ 3-26
Brake lever free play, checking............. 6-20
Brake light switches.............................. 6-20
Brake pedal........................................... 3-27CCables, checking and lubricating ......... 6-25
Canister................................................. 6-11
Care ........................................................ 7-1
Catalytic converter ................................ 3-33
Centerstand and sidestand, checking and lubricating .................................... 6-27
Clutch lever ........................................... 3-25
Clutch lever free play, adjusting ........... 6-19
Coolant ................................................. 6-14
Cruise control indicator lights ................. 3-6
Cruise control switches .......................... 3-4
Cruise control system ............................. 3-8DData recording, vehicle ........................... 9-2
Diagnostic connector.............................. 9-2 Dimmer/Pass switch .............................. 3-4
Display, main screen ............................ 3-11
Display, menu screen ........................... 3-15
D-mode (drive mode) ........................... 3-25
Drive chain, cleaning and lubricating ... 6-25
Drive chain slack .................................. 6-23
Drive mode switch.................................. 3-4
EEngine break-in ...................................... 5-4
Engine idling speed, checking ............. 6-15
Engine oil .............................................. 6-11
Engine oil and Coolant warning light ...... 3-7
Engine serial number .............................. 9-1
Engine trouble warning light ................... 3-6FFront and rear brake pads, checking ... 6-21
Front fork, adjusting ............................. 3-39
Front fork, checking ............................. 6-28
Fuel ....................................................... 3-31
Fuel consumption, tips for reducing ...... 5-4
Fuel tank cap ........................................ 3-30
Fuel tank overflow hose ....................... 3-33
Fuses, replacing ................................... 6-31HHandlebar position, adjusting .............. 3-39
Handlebar switches ................................ 3-3
Hazard switch......................................... 3-4
Headlight beams, adjusting.................. 3-38
Helmet holder ....................................... 3-37
High beam indicator light ....................... 3-6
Horn switch ............................................ 3-4IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-45Immobilizer system .................................3-1
Immobilizer system indi
cator light ..........3-7
Indicator lights and warning lights ..........3-5
LLicense plate light bulb, replacing ........6-34MMain switch/steering lock .......................3-2
Maintenance and lubrication, periodic....6-5
Maintenance, emission control system ..................................................6-3
Matte color, caution ................................7-1
Model label .............................................9-1NNeutral indicator light ..............................3-6PPanel, removing and installing ................6-9
Parking ....................................................5-5
Part locations ..........................................2-1QQuick shift system ................................3-26RRider seat height, adjusting ..................3-35SSafety information ...................................1-1
Seats .....................................................3-34
Shift indicator light ..................................3-7
Shifting ....................................................5-2
Shift pedal .............................................3-26
Shock absorber assembly, adjusting ....3-41
Sidestand ..............................................3-44
Spark plugs, checking ..........................6-10
Specifications .........................................8-1
Starting the engine ..................................5-1
Steering, checking ................................6-29
UB1JE1E0.book Page 1 Thursday, October 11, 2018 10:43 AM