Yamaha SR400 2014, Service Manual

Page: 102 / 342

PERIODIC MAINTENANCE
3-16
EAS21650
CHECKING THE TIRES
The following procedure applies to both of the
tires.
1. Check:
• Tire pressure
Out of specification

Regulate.
WARNING
EWA13180
• The tire pressure should only be checked
and regulated when the tire temperature
equals the ambient air temperature.
• The tire pressure and the suspension must
be adjusted according to the total weight
(including cargo, rider, passenger and ac-
cessories) and the anticipated riding
speed.
• Operation of an overloaded vehicle could
cause tire damage, an accident or an injury.
NEVER OVERLOAD THE VEHICLE.
WARNING
EWA13190
It is dangerous to ride with a worn-out tire.
When the tire tread reaches the wear limit, re-
place the tire immediately.
2. Check:
• Tire surfaces
Damage/wear

Replace the tire.
1
Tire air pressure (measured on
cold tires)
Loading condition
0–90 kg (0–198 lb)
Front
175 kPa (1.75 kgf/cm
2
, 25 psi)
Rear
200 kPa (2.00 kgf/cm
2
, 29 psi)
Loading condition
90–150 kg (198–331 lb)
Front
200 kPa (2.00 kgf/cm
2
, 29 psi)
Rear
225 kPa (2.25 kgf/cm
2
, 33 psi)
High-speed riding
Front
200 kPa (2.00 kgf/cm
2
, 29 psi)
Rear
225 kPa (2.25 kgf/cm
2
, 33 psi)
Maximum load
150 kg (331 lb)
*
Total weight of rider, passenger, cargo and ac-
cessories
1. Tire tread depth
2. Side wall
3. Wear indicator
Wear limit (front)
1.5 mm (0.06 in) (AUS)
1.6 mm (0.06 in) (EUR)
Wear limit (rear)
1.5 mm (0.06 in) (AUS)
1.6 mm (0.06 in) (EUR)