Transmission Chain; Tyre Pressures - Polini XP 4T CROSS Uso Y Mantenimiento

periodically check the brake fluid level and the wear of the brake pads
WARNING. When you add brake fluid, make sure that the tank is
in horizontal position before removing the cap to avoid spilling the fluid.
WARNING. Incorrectly positioned brake lines can be damaged by
contact with moving parts, leading to serious accidents. The braking
system must also be run in before it achieves maximum efficiency.
Apply the brakes at least one hundred times before considering them
to be fully efficient. Proceed with great caution throughout this period.
At the end of this period, adjust the brakes and also check that all the
fixing bolts are tight.
In order to adjust the travel of the rear brake pedal turn the pivot
screw placed on the brake pump and, once suited the stature of the
rider, close the nut placed on the pivot thread (photo 29). Check the
conditions of the pads friction material. When the thickness of the
material is inferior to 1 mm, change it. Be sure there is no oil leak.
Check if tubes and connections are worn or with cracks.
ADJUSTING SCREW
DANGER. Use only DOT 4 hydraulic brake fluid from clean new
containers.
WARNING. Brake fluid is highly corrosive to paintwork and can
cause injury if it comes into contact with the eyes or skin. Consult a
doctor immediately in case of accident. Change the brake fluid every
two years.
DO NOT THROW SPENT BRAKE FLUID INTO THE ENVIRONMENT.
WARNING. As required by use and weather conditions, regularly
clean the brake callipers using a jet of compressed air. Check the con-
ditions of the pads friction material; when the thickness of the material
is inferior to 1 mm, change it.
WARNING. Do not adjust the brake when discs are still hot
DANGER: After changing the callipers press again and again the
brake level placed on the handlebar and the brake pedal in order to
make the pads closed to the disk. Before using the vehicle be sure the
brakes work perfectly.

7.10 TYRE PRESSURES

Check tyre pressure frequently and adjust as necessary. Always
measure tyre pressure when the tyres are cold. Keep in mind that the
tyre pressure can change depending on the track's conditions and on
the rider's weight.
FRONT
Minicross 1,3 BAR - 18,9 PSI
Minimotard 1,5 BAR - 21,8 PSI
rider, type of track and the temperature of both the atmosphere and
asphalt.

7.11 TRANSMISSION CHAIN

The final drive chain is an extremely important component and
deserves special care and regular servicing.
fingers between the chain and sprocket.
1- Check the chain tension with the motorcycle standing upright and
29
5/10 mm.
- Loosen the nut "3" on the rear wheel spindle.
- Loosen the lock nuts "1" and turn the adjuster "2" anti-clockwise to
tighten or clockwise to slacken the chain. Make sure that the edges
of the spindle plates are perpendicular to the swing arm and
measure distance "A" between the swing arm and the plates.
Make sure that distance "A" is the same on both sides.
- Tighten the rear spindle nut "3" (see schedule 9.1) (photo 32).
- Measure the chain movement again and repeat the adjustment
procedure if necessary.
- Gently turn the adjuster "2" to bring it into firm contact with the axle
plates. Hold the adjusters firmly with a spanner and tighten the lock
nut "1".
2- Whenever you check chain tension, also check the chain and the
REAR
1,3 BAR - 18,9 PSI
WARNING. Tyres pressure varies according to the weight of the
DANGER. When working on the chain, take care not to jam your
with no pressure on the suspensions. Measure chain movement at
the position shown in photo 30. Chain movement must be 35-39
mm. If necessary, proceed as follows to adjust the chain tension
(photo 31).
1
2
front and rear sprockets for wear or damage.
21
1,8 BAR - 26,1 PSI
30
31
A
3
ENGLISH