APRILIA SR 50 Workshop Manual page 17

GENERAL INFORMATION
COOLANT
DANGER
Coolant is toxic when swallowed and is an irritant. Contact with the eyes or skin can cause irritation.
In the event of contact with the skin or eyes, rinse repeatedly with abundant water and seek medical
attention. If swallowed, induce vomiting, rinse mouth and throat with abundant water and seek
medical attention immediately.
DO NOT DISPOSE OF IN THE ENVIRONMENT.
KEEP AWAY FROM CHILDREN.
DANGER
Avoid spilling coolant onto hot engine parts, as it may ignite and produce invisible flames. Wear latex
gloves when servicing.
Do not ride the vehicle when coolant is below the minimum level.
Coolant mixture is a 50% solution of water and antifreeze. This is the ideal solution for most operating temperatures and
provides good corrosion protection.
This solution is also suited to the warm season, as it is less prone to evaporative loss and will reduce the need for top-
ups.
In addition, less water evaporation means fewer mineral salts depositing in the radiator, which helps preserve the
efficiency of the cooling system.
When the temperature drops below 0°C, check the cooling system frequently and add more antifreeze (up to 60%
maximum) to the solution, if needed.
Use distilled water in the coolant mixture. Tap water will damage the engine.
Refer to the chart given below and add water with the quantity of antifreeze to obtain a solution with the desired freezing
point:
Freezing point C° (-°F)
-20° (-4)
-30° (-22)
-40° (-40)
CAUTION: Coolants have varying specifications. The degree of protection is written on the label.
WARNING
Use only nitrite-free antifreeze and corrosion inhibitors with a freezing point of -35°C (-31°F) as a
minimum.
TIRES
WARNING
An over inflated tire results in a hard, uncomfortable and less secure ride.
Over inflation also affects grip, especially on curves and wet surfaces.
An under inflated tire (insufficient pressure) can slip on the wheel rim, resulting in loss of control.
Under inflation also affects grip and handling, as well as braking efficiency.
Tire replacement and repair, and wheel servicing and balancing are delicate operations. They should
be carried out using adequate tools and are best left to experienced mechanics.
New tires may be covered with a thin layer of protective coating which is slippery. Drive carefully for
the first few kilometers (miles).
Never use any kind of rubber treatment product on the tires.
In particular, do not allow the tire to come in contact with liquid fuel, which rapidly deteriorates the tire
rubber.
In case of contact with oil or fuel, do not clean but replace the tire.
DANGER
Some of the factory-assembled tires on this vehicle are equipped with wear indicators.
There are various types of wear indicators.
For more information on how to check wear, contact your Dealer.
Check the wear visually and have the tires replaced when they are worn.
If a tire deflates during a ride, do not attempt to continue the trip.
Avoid sudden braking or steering maneuvers, and do not decelerate rapidly.
Slowly decelerate and move to the edge of the road braking with the engine until you come to a
standstill.
Failure to observe these instructions can result in serious accidents, with the risk of serious personal
injury or death.
Never use tube tires on tubeless tire rims, or vice versa.
1 - 10
Coolant % of volume
35
45
55
SR 50