Tires, Air Pressure; Checking Spoke Tension; Cooling System - KTM 50 SX PRO SENIOR LC 2002 Owner's Handbook Manual

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Tires, air pressure

Tire type, tire condition, and air pressure level affect the way your motorcy-
cle rides, and they must therefore be checked whenever you are getting
ready to go anywhere on your motorcycle.
– Tire size can be found in the technical specifications.
– Tire condition has to be checked every time you want to ride your
motorcycle. Before leaving, check tires for punctures and nails or other
sharp objects that might have become embedded in them.
– Regularly check the "cold" tire pressure. Correct tire pressure (1.0 bar /
14 psi) guarantees optimum grip and maximum tire life.
– D
AMAGED TIRES MUST BE REPLACED IMMEDIATELY TO PROTECT YOUR YOUNGSTER
– W
ORN TIRES CAN HAVE A NEGATIVE EFFECT ON HOW THE MOTORCYCLE PERFORMS
ESPECIALLY ON WET SURFACES
– T
IRE PRESSURE BELOW THE NORMAL LEVEL WILL LEAD TO PREMATURE TIRE WEAR

Checking spoke tension

The correct spoke tension is very important for the stability of the wheels
and thus for riding safety. A loose spoke causes the wheel to become
unbalanced and before long other spokes will have come loose. Check
spoke tension, especially on a new motorcycle, in regular intervals. If neces-
sary, have the spokes retightened and the wheel centered by a KTM dealer.
– S
POKES CAN TEAR IF YOU CONTINUE TO RIDE WITH THEM LOOSE
UNSTABLE HANDLING OF YOUR MOTORCYCLE
– E
XCESSIVELY TENSIONED SPOKES MAY RUPTURE DUE TO LOCAL OVERLOADING

Cooling system

The water pump
The cooling liquid is cooled by the air stream. Therefore, the cooling effect
is reduced when the traveling speed is reduced. Dirty radiators additionally
reduce the cooling effect.
The cooling liquid can be drained by removing screw
cover.
D
O NOT REMOVE ANY COOLER HOSES OR THE DRAIN SCREW WHEN THE ENGINE IS HOT
1
A mixture of 40% anti freeze liquid and 60% water is used as coolant. How-
ever, the anti-freeze protection must be at least -25° C (-13° F). This mix-
ture offers anti-freeze protection but also good corrosion protection and
3
should therefore not be replaced by pure water.
F
OR THE COOLING SYSTEM
C ). U
OOLANT
COOLANT FOAMING
Pressure induced by heating of the coolant in the system is controlled by a
valve in the radiator cap
is admissible, without fear of problems.
WARNING
WARNING
.
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in the engine keeps the cooling liquid in circulation.
WARNING
! CAUTION
,
USE ONLY WITH HIGH
-
SING LOWER GRADE ANTIFREEZE AGENTS
.
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; a water temperature rising up to 120° C (248° F)
. T
HIS MAY LEAD TO AN
.
2
on the water-pump
!
- (S A
GRADE ANTIFREEZE HELL DVANCE
,
CAN CAUSE CORROSION AND
.
,
.
.