19Series 4144 Components FC, FS, KM
5.8 Muffler / Spark Arresting Screen
Always check and, if necessary, 
repair the fuel system, carburetor, 
air filter and ignition system before 
looking for faults on the engine. 
– Troubleshooting, b 4.5
– Remove the drive tube, b 9.1
– Remove the rewind starter, 
b 6.2
– Remove the shroud, b 5.1
: Take out the screws (arrows). 
– Remove the muffler (1), check 
and replace if necessary.
: Remove the gasket (1).
545RA050 TG
1
545RA051 TG
1
Spark arresting screen
(if fitted)
: Take out the screw (arrow) and 
remove the spark arresting 
screen (1).
– Clean the spark arresting screen 
or replace if necessary.
– Reassemble in the reverse 
sequence.
: Inspect and clean the sealing 
faces (arrows) and remove any 
gasket residue, b 11
545RA052 TG
1
545RA053 TG
Use a new exhaust gasket.
– Insert the screws.
: Push the exhaust gasket (1) over 
the screws.
: Carefully place the muffler (1) in 
position. 
– Fit the screws with washers and 
check correct position of exhaust 
gasket again.
– Insert screws and tighten them 
down firmly.
– Reassemble all other parts in the 
reverse sequence.
– Tightening torques, b 3.4
545RA055 TG
1
545RA056 TG
1