4 STROKES
DRAINING, FILLING AND BLEEDING COOLING SYSTEM (A)
Coolant can be drained by removing the screw (1) from the water pump
cover on the right side of the engine. Have a suitable basin ready to catch
the draining fluid. The radiator cap must be open to drain the fluid. Once
finished, screw in the drain screw and tighten by 12 Nm.
To fill the cooling system, pour the amount of coolant indicated in table
“Engine Technical Data” (page 90) through the filler neck (2). Close the
radiator cap and start the engine for a few seconds. Switch off the engine,
open the cap, and check the level. Add fluid, if required.
After a short ride check the coolant level again.
- DRAIN THE COOLANT, IF POSSIBLE WITH A COOL ENGINE. IF YOU MUST DRAIN
THE COOLANT WITH A HOT ENGINE SLOWLY OPEN THE RADIATOR CAP, BEING
SURE TO COVER IT WITH A CLOTH TO DISCHARGE OVERPRESSURE.
ATTENTION, DANGER OF BURNS!
- IN CASE OF BURNS, IMMEDIATELY RINSE THE BURNT AREA WITH COLD RUN-
NING 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
- ONCE THE COOLANT HAS BEEN DRAINED, WHEN YOU FILL IT UP AGAIN IT IS
ABSOLUTELY NECESSARY TO BLEED THE COOLING SYSTEM.
- ALWAYS USE HIGH QUALITY PRODUCTS TO PREVENT CORROSION OR FOAM
FROM FORMING.
REPLACING EXHAUST SILENCER PACKING MATERIAL (A)
COMPETITION SILENCER (MX/SMX)
The competition silencer is fully packed with soundproof material (fibre-
glass) to limit the motorcycle’s exhaust noise to within the competition
limits. Fibreglass tends to burn due to the high temperature reached by
the exhaust fumes; this decreases the noise absorption effect and power.
To replace the fibreglass disassemble the silencer from the motorcycle,
remove the rivets (1) that secure the rear cap (2) to the external pipe (3).
Keep the band (4) and remove the cap, leaving the internal perforated
sheet metal pipe (5) in its seat. Remove the soundproof material to be
replaced.
Pack with 500 g of original TM Racing fibreglass, inserting it in the gap
between the internal and external pipe. Use a pipe of suitable size to push
the fibreglass into the space and gently press. Pack the gap completely.
Reassemble the rear cap (2) and secure it with new rivets. Be sure to
position the band (4) correctly.
Reassemble the motorcycle silencer.
Grease the ends of the pipes to make assembling the silencer easier.
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DANGER
4.3 ENGINE MAINTENANCE
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