Yamaha YFM 90 2021 Owner's Manual page 10

Operating the drive select lever and
driving in reverse.......................................7-3
Engine break-in ...........................................7-4
Parking ........................................................7-5
Parking on a slope ......................................7-5
Accessories and loading .............................7-6
RIDING YOUR ATV ........................................8-1
GETTING TO KNOW YOUR ATV ................8-2
RIDE WITH CARE AND GOOD
JUDGMENT ..............................................8-2
BE CAREFUL WHERE YOU RIDE...............8-9
TURNING YOUR ATV................................8-12
CLIMBING UPHILL ...................................8-13
RIDING DOWNHILL ..................................8-16
CROSSING A SLOPE................................8-17
CROSSING THROUGH SHALLOW
WATER....................................................8-18
RIDING OVER ROUGH TERRAIN .............8-20
SLIDING AND SKIDDING..........................8-20
WHAT TO DO IF........................................8-21
PERIODIC MAINTENANCE AND
ADJUSTMENT................................................9-1
Owner's Manual and tool kit .......................9-2
Periodic maintenance chart: Emission
control system ..........................................9-3
Periodic maintenance chart: General
maintenance and lubrication .................... 9-5
Checking the spark plug............................. 9-9
Engine oil .................................................. 9-10
Why Yamalube.......................................... 9-13
Transmission oil........................................ 9-14
Cleaning the air filter element ................... 9-15
Cleaning the spark arrester ...................... 9-18
Adjusting the carburetor ........................... 9-19
Adjusting the engine idling speed ............ 9-19
Adjusting the throttle lever free play......... 9-20
Valve clearance......................................... 9-21
Brakes....................................................... 9-21
Checking the front and rear brake
shoes ...................................................... 9-21
Adjusting the front brake lever free play... 9-23
Adjusting the rear brake lever free play .... 9-24
Drive chain slack....................................... 9-25
Lubricating the drive chain ....................... 9-27
Checking and lubricating the cables ........ 9-28
Checking and lubricating the front and
rear brake levers ..................................... 9-28
Checking the wheel hub bearings ............ 9-29
Lubricating the front arm pivots ............... 9-29
Lubricating the front knuckle pivots ......... 9-30
Lubricating the steering shaft ................... 9-30
Battery ...................................................... 9-31