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Refilling/Bleeding the cooling system
The cooling system must be bled as described below after draining the
cooling liquid or after adding more than 0.25 l (0.06 US gallons) cooling
liquid.
Make sure that the drain screw
1 is fastened.
Pour approx. 0.5 litres (0.13 US gallons) coolant into the system.
Remove screw
2 at the cylinder head. Reinstall it as soon as the cooling
liquid emerges free of air bubbles (only for 125/200 engines).
Remove the screw
3 on the right radiator.
Now add cooling liquid until it emerges free of bubbles at the right radia-
tor. Then immediately mount the screw so that no more air can enter the
right radiator.
Top up the left radiator until the coolant can be seen approx. 10 mm
(0.4 in) above the radiator fins.
Check the coolant level again after a short ride.
Cleaning the air filter *
The air filter must be cleaned prior to every race or whenever the motorcycle
has been exposed to great quantities of dust.
For this purpose, rotate the two quick-release fasteners
4 counter-clockwise
and pull them outward up to the stop, pull the filter box cover forward and
remove it. Unhook the filter holding brackets
6 at the bottom, swing them
sideways and take the air filter
5 together with the filter support 7 out of
the filter box.
!
CAUTION
!
D
O NOT CLEAN THE AIR FILTER WITH FUEL OR PETROLEUM SINCE THESE WILL DAMAGE
THE FOAM
. KTM RECOMMENDS THE PRODUCTS MADE BY TWIN AIR FOR AIR FILTER
MAINTENANCE
. FOR CLEANING PURPOSES AND TO OIL THE AIR FILTER.
Thoroughly wash the air filter in special cleaning fluid and allow it to dry
well. Only press out the filter, do not wring it out under any circumstances.
Oil the dry air filter with a high-grade filter oil. Also clean the air filter box.
Check the carburetor collar for damage and that it is filled correctly.
Mount the air filter on the filter support. Mount the filter together with the
filter support in the filter box, making sure to center them, and fix them
properly with the filter holding bracket.
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