ENGLISH
27
Cooling system
The water pump
1
in the engine keeps the cooling liquid in circulation.
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 the screw
2
on the water-
pump cover.
WARNING
D
O NOT REMOVE ANY COOLER HOSES OR THE DRAIN SCREW WHEN THE ENGINE IS HOT
.
A mixture of 40% antifreeze liquid and 60% water is used as coolant.
However, the antifreeze protection must be at least -25° C (-13° F). This
mixture offers antifreeze protection but also good corrosion protection and
should therefore not be replaced by pure water.
!
CAUTION
!
F
OR THE COOLING SYSTEM
,
USE ONLY WITH HIGH
-
GRADE ANTIFREEZE
(M
OTOREX
A
NTI
-
F
REEZE
). U
SING LOWER
-
GRADE ANTIFREEZE AGENTS CAN CAUSE CORROSION AND COO
-
LANT FOAMING
.
Pressure induced by heating of the coolant in the system is controlled by a
valve in the radiator cap
3
; a water temperature rising up to 120° C
(248° F) is admissible, without fear of problems.
Checking coolant level
The coolant should be 10 mm (0.4 in) above the radiator fins when the
engine is cold (see illustr.). In the event of the coolant being drained, always
fill and bleed the system.
WARNING
I
F POSSIBLE
,
ALWAYS CHECK THE LEVEL OF THE COOLING LIQUID WHEN THE ENGINE IS
COLD
. I
F YOU HAVE TO OPEN THE RADIATOR CAP WHEN THE ENGINE IS HOT
,
USE A RAG
TO COVER THE CAP AND OPEN SLOWLY TO RELEASE PRESSURE
.
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
4
is fastened.
Pour approx. 0.5 litres (0.13 US gallons) coolant into the system.
Remove the screw
5
on the right radiator.
Now add cooling liquid until it emerges free of bubbles at the right radiator.
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.
Adjusting the throttle cable*
There must always be a 3-5 mm (0.1-0.2 in) play in the throttle cable. To
check this, move back the protective cover
6
on the throttle grip. You must
be able to lift the outer covering of the cable 3-5 mm from the adjusting
screw
7
until resistance is felt.
To adjust, loosen the counternut
8
and turn the adjusting screw
accordingly. Finally tighten the counternut and slide the protective cover
back on.
To check the correctness of this setting, start the engine, turn the
handlebar left and right, in both cases as far as it will go. This must not
cause any changes in idling speed. Otherwise, you will have to increase the
backlash of the throttle cable.
when engine is cold
10 mm
3-5 mm
6
7
1
2
3
4
5
8
