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4 S T R O K E S
4 S T R O K E S
4 S T R O K E S
4 S T R O K E S
COOLING
The water pump (1), housed in the engine, induces forced coolant cir-
culation.
The system is not equipped with a thermostat therefore it is important
to moderate the number of revs and speed when the engine is cold.
Proceed for at least 5 minutes at half throttle and at reduced pace to
allow the engine to reach an adequate operating temperature.
Cooling takes place thanks to the passage of air through the radiator
fins. The lower the speed, the lesser the cooling effect. Dirty radiator
fins also decrease the cooling effect.
A valve on the radiator cap (2) adjusts the pressure produced by high
fluid temperature; it is possible to reach temperatures of 120°C without
problems.
The coolant is a mixture of 40% antifreeze and 60% water. The antifreeze
protection limit must, however, be at least -25°C. This mixture protects
against freezing and corrosion and should, therefore, not be replaced
with pure water.
WARNING
- ALWAYS USE HIGH QUALITY PRODUCTS TO PREVENT CORROSION OR FOAM
FROM FORMING.
- OVERHEATING MAY OCCUR UNDER EXTREME WEATHER CONDITIONS OR IN
STOP-AND-GO TRAFFIC. THIS PROBLEM IS SOLVED BY AN ELECTRIC FAN
KIT WHICH IS AVAILABLE FOR MODELS WITH ELECTRIC STARTER (ASK YOUR
TM DEALER).
CHECKING COOLANT LEVEL
When the engine is cool open the radiator filler cap. The fluid must
cover the radiator channels by about 10 mm. If the level is insufficient
immediately top-up with other mixed fluid and bleed the air.
Use water only if strictly necessary and in small amounts so as not to
decrease the properties of the fluid.
- CHECK THE COOLANT LEVEL, IF POSSIBLE WITH A COOL ENGINE. IF NECES-
SARY, OPEN THE RADIATOR CAP WHEN THE ENGINE IS HOT, COVER IT WITH
A CLOTH AND OPEN IT SLOWLY TO DISCHARGE OVERPRESSURE.
ATTENTION, DANGER OF BURNS!
- DO NOT REMOVE THE RADIATOR HOSES WHEN THE ENGINE IS HOT. LEAKING
COOLANT AND HOT VAPOURS CAN CAUSE SERIOUS BURNS.
- IN CASE OF BURNS, IMMEDIATELY RINSE THE BURNT AREA WITH COLD
RUNNING WATER AND SEEK MEDICAL ADVICE.
- COOLANT IS TOXIC! THEREFORE, KEEP IT OUT OF THE REACH OF CHILDREN.
- IF COOLANT IS SWALLOWED SEEK MEDICAL ADVICE IMMEDIATELY.
- IF COOLANT GETS IN THE EYES IMMEDIATELY RINSE WITH COLD WATER
AND SEEK MEDICAL ADVICE.
WARNING
- ALWAYS USE HIGH QUALITY PRODUCTS TO PREVENT CORROSION OR FOAM
FROM FORMING.
1
DANGER
4.3 ENGINE MAINTENANCE
2
Содержание 250Fi MX
Страница 1: ...www tmracing it USE AND MAINTENANCE MANUAL 4 STROKES USE AND MAINTENANCE ...
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Страница 9: ...1 VEHICLE IDENTIFICATION ...
Страница 11: ...4 S T R O K E S 11 4 S T R O K E S 2 CONTROL COMPONENTS ...
Страница 21: ...4 S T R O K E S 21 4 S T R O K E S 3 USE INSTRUCTIONS ...
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Страница 100: ...100 4 S T R O K E S 4 S T R O K E S 7 5 ENGINE WIRING DIAGRAM 450F SMR SMM 530F EN MXE S SMR SMM SMXE S ...