Checking The Steering Operation; Checking The Wheels; Checking The Tires - Yamaha UMAX Service Manual

1
c. Tighten the locknuts.
WARNING
Do not over-tighten the brake cables. Over-
tightening will increase brake wear and af-
fect the overall performance of the vehicle.
Premature brake wear can result. Death or
serious personal injury can result from fail-
ing to comply with the warning labels in this
manual.
4. Install:
• Service lid
• Floor mat

CHECKING THE STEERING OPERATION

1. Park the vehicle on a level surface and apply
the parking brake.
2. Check:
• Steering wheel operation
Move the steering wheel up and down, and
back and forth.
Turn the steering wheel slightly to the right
and left.
Excessive play → Check that the steering
column bolts or steering wheel nut are tight-
ened to specification.
Refer to "STEERING SYSTEM" on page
4-29.

CHECKING THE WHEELS

The following procedure applies to all of the
wheels.
2
PRE-OPERATION CHECKS
1. Check:
• Wheel
Damage/bends → Replace.
WARNING
• Never attempt even small repairs to the
wheel.
• Ride conservatively after installing a tire to
allow it to seat itself properly on the rim.
2. Check:
• Radial wheel runout
• Lateral wheel runout
Refer to "CHECKING THE WHEELS" on
page 4-19.
3. Check:
• Wheel bearings
Refer to "CHECKING THE WHEELS" on
page 4-19.

CHECKING THE TIRES

The following procedure applies to all of the
tires.
WARNING
This model is equipped with low-pressure
tires. It is important that they be inflated cor-
rectly and maintained at the proper pres-
sures.
Tire characteristics
WARNING
Tire characteristics influence the handling of
vehicles. The tires listed below have been
approved by Yamaha Motor Powered Prod-
ucts Co., Ltd. for this model. If other tire com-
binations are used, they can adversely affect
your vehicle's handling characteristics and
are therefore not recommended.
Front tire
Size
20 × 10.00-10/4-ply
Rear tire
Size
20 × 10.00-10/4-ply
Tire pressure
WARNING
• Tire pressure below the minimum specifi-
cation could cause the tire to dislodge from
the rim under severe riding conditions.
• Use no more than the following pressures
when seating the tire beads.
3-6