ENGLISH
42
MAINTENANCE WORK ON CHASSIS AND ENGINE
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Exhaust system (SXC) *
Aluminium silencers are filled with glass fiber yarn. Have the filling checked
regularly by an authorized KTM workshop (see Lubrication and Service Chart).
The insulating material fibers escape through the holes in the perforated pipe
with time, causing the silencer to „burn out“. In addition to causing a higher
noise-level, it will also affect the power characteristic. The insulating mate-
rial suitable for your exhaust is available from your authorized KTM workshop.
Experience has shown that the front glass fiber pack [1] must be replaced
more often than the rear pack [2].
To replace the front glass fiber yarn pack, remove the silencer. Remove the
front cap [3], pull the front glass fiber yarn pack out of the silencer, mount a
new pack on the internal exhaust pipe, insert the internal exhaust pipe [4]
into the silencer and replace the cap.
To replace the rear glass fiber yarn pack, drill the rivets open and remove the
rear cap [5].
NOTE:
Always renew the O-rings [6].
Glass fiber yarn packs are available in your KTM store.
The exhaust system becomes very hot while the motorcycle is running. to avoid
burns Do not start work on the exhaust system until it has properly cooled
down.
Exhaust system (SMC) *
625 SMC silencers are filled with glass-fiber yarn in the front and insulation
matting in the rear for dampening. The influence of heat causes the glass-
fiber yarn to become loose. This can lead to a loss of power and reduce the
silencer's dampening effect, therefore only the front glass-fiber yarn set [7]
must be replaced.
To replace, detach the silencer from the motorcycle and remove the front cap
[8]. Pull the front glass-fiber yarn set including the inner exhaust pipe [9] out
of the silencer. Clean the front inner exhaust pipe.
Slide a new set into the silencer.Replace O-Ring [10]. Then push the inner
exhaust pipe into the silencer and mount the cap. Have the filling checked
regularly by an authorized KTM workshop (see Lubrication and Service Chart).
The insulating material fibers escape through the holes in the perforated pipe
with time, causing the silencer to „burn out“. In addition to causing a higher
noise-level, it will also affect the power characteristic. The insulating mate-
rial suitable for your exhaust is available from your authorized KTM workshop.
The exhaust system becomes very hot while the motorcycle is running. to avoid
burns Do not start work on the exhaust system until it has properly cooled
down.
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