TM RACING 250Fi MX, Use And Maintenance Manual

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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
APPROVED SILENCER (EN/SMR/SMM)
The approved silencer is divided into two chambers in order to contain
the motorcycle’s exhaust noise within the limits set forth by road traffic
laws. The first chamber is at the inlet and is packed with soundproof
material (fibreglass). Fibreglass tends to burn due to the high tempera-
ture reached by the exhaust fumes; this decreases the noise absorption
effect and power.
The second chamber, located at the outlet, does not require mainte-
nance.
To replace the fibreglass in the first chamber, disassemble the silencer
from the motorcycle, remove the rivets (1) that secure the front cap (2)
to the external pipe (3). Keep the band (4) and remove the cap, leaving
the internal perforated pipe (5) sealed to it. Remove the soundproof
material to be replaced.
Pack with about 400 g of original TM Racing fibreglass, using a specific
pipe to be positioned in the chamber instead of the perforated cap, which
has been removed with the cap. Insert the fibreglass in the created gap,
pressing it gently.
Pack the gap completely.
Reassemble the front 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.
Secure the seal spring between the pipe and silencer.
Upon starting the engine, smoke can escape from greased parts due
to the high temperature that melts the grease used.
- ATTENTION, DANGER OF BURNS!
- THE EXHAUST SYSTEM BECOMES VERY HOT WHEN THE MOTORCYCLE IS
RUNNING. START OPERATIONS ON THE EXHAUST SYSTEM ONLY ONCE IT
IS COLD TO PREVENT BURNS.
- IN CASE OF BURNS, IMMEDIATELY RINSE THE BURNT AREA WITH COLD
RUNNING WATER AND SEEK MEDICAL ADVICE.
WARNING
REPLACE THE FIBREGLASS WITH NEW PRODUCT PURCHASED AT A TM
DEALER OR WITH AN EQUIVALENT PRODUCT.
NEVER USE FLAMMABLE MATERIAL AS PACKING MATERIAL.
CLEANING AIR FILTER
Clean the air filter and perform maintenance on a regular basis.
A dirty air filter affects the air flow, reduces engine power, and increases
fuel consumption. In some cases dust may enter the engine causing
serious damage therefore perform maintenance on the air filter on a
regular basis.
To access the filter remove the seat and battery holder (1), if available.
To remove the filter loosen the butterfly screw (2) located at the centre
of the filter and carefully remove the filter from its case.
DANGER
4.3 ENGINE MAINTENANCE
1
4
5
2
3
1
2