8-11
8
To remove the spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as shown, with the spark plug wrench included in the owner’s
tool kit. To check the spark plug
1. Check that the porcelain insulator around the center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).
TIPIf the spark plug shows a distinctly different color,
the engine could be operating improperly. Do not
attempt to diagnose such problems yourself. In-
stead, have a Yamaha dealer check the ATV.
1. Spark plug cap
1
1. Spark plug wrench
1
U2LS60E0.book Page 11 Wednesday, June 18, 2014 11:12 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-7
Air filter element, cleaning ............................................ 8-21BBattery .......................................................................... 8-45
Brake and clutch levers, checking and lubricating ...... 8-41
Brake fluid, changing ...................................................8-33
Brake fluid level, checking ........................................... 8-31
Brake lever ..................................................................... 4-6
Brake lever free play, checking the front ..................... 8-33
Brake light switches ..................................................... 8-36
Brake pads, checking the front and rear ..................... 8-29
Brake pedal .................................................................... 4-7
Brake pedal, checking and lubricating ........................ 8-41
Brake pedal height, checking ...................................... 8-34
Brakes .......................................................................... 8-29
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-40
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-6
Clutch lever free play, adjusting ................................... 8-36
Coolant ................................................................. 5-4, 8-17
Coolant temperature warning light ................................. 4-2DDrive chain ..................................................................... 5-5
Drive chain, lubricating ................................................ 8-40
Drive chain slack .......................................................... 8-38
EEngine break-in .............................................................. 6-5
Engine idling speed ...................................................... 8-27
Engine oil ....................................................................... 5-4
Engine oil and oil filter element .................................... 8-13
Engine, start ................................................................... 6-1
Engine stop switch ......................................................... 4-4
Engine trouble warning light .......................................... 4-3FFuel ...................................................................... 4-10, 5-4
Fuel level warning light ................................................... 4-3
Fuel tank cap ............................................................... 4-10
Fuses, replacing ........................................................... 8-48HHandlebar switches ....................................................... 4-4
Headlight beam, adjusting ........................................... 8-51
Headlight bulb, replacing ............................................. 8-50IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-8LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-4MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................ 8-5
Maintenance chart, emission control system ................ 8-3
Model label .................................................................. 11-1
U2LS60E0.book Page 1 Wednesday, June 18, 2014 11:12 AM
