2017 YAMAHA YFM90 Owners Manual

Page 81 of 130

YAMAHA YFM90 2017  Owners Manual 7-21
7
To reduce the tendency for the front wheels to
slide in loose or slippery conditions, positioning
your weight over the front wheels will sometimes
help.
If the rear wheels of your ATV start to

Page 82 of 130

YAMAHA YFM90 2017  Owners Manual 7-22
7WHAT TO DO...

If your ATV doesn’t turn when you want it to:
Bring the ATV to a stop and practice the turning
maneuvers again. Be sure you are putting your
weight on the footboard to the ou

Page 83 of 130

YAMAHA YFM90 2017  Owners Manual 8-1
8
EBU28787
PERIODIC MAINTENANCE AND ADJUSTMENT
EBU21675Periodic inspection, adjustment, and lubrication
will keep your vehicle in the safest and most effi-
cient condition possible. Safety is an o

Page 84 of 130

YAMAHA YFM90 2017  Owners Manual 8-2
8
EBU33901Owner’s manual and tool kitBe sure to put this owner’s manual in the plastic
bag and always carry it along with the owner’s tool
kit on the bottom of the seat.
The service informat

Page 85 of 130

YAMAHA YFM90 2017  Owners Manual 8-3
8
EBU21745Periodic maintenance chart for the emission control systemTIPFor ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
 For ATVs equipped wit

Page 86 of 130

YAMAHA YFM90 2017  Owners Manual 8-4
8
6*Exhaust system • Check for leakage and replace gasket(s) if neces-
sary.
• Check for looseness and tighten all screw clamps  and joints if necessary. √√√
7 Spark arrester • Clean.

Page 87 of 130

YAMAHA YFM90 2017  Owners Manual 8-5
8
EBU2186AGeneral maintenance and lubrication chartTIPFor ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
 For ATVs equipped with an odometer or

Page 88 of 130

YAMAHA YFM90 2017  Owners Manual 8-6
8
5*Wheels • Check runout and for damage, and replace if nec-
essary. √ √√√
6 *Tires • Check tread depth and for damage, and replace if 
necessary.
• Check air pressure and balance,