Operation Manual

139MS 241 C
: Press the manifold flange (1) out
of the carburetor support (2) by
hand in the direction of the
cylinder while pulling off the
carburetor support
– Remove carburetor support,
check it and replace if necessary
– Examine intake elbow, replace if
necessary, b 13.9
Installation
: To pull the manifold flange (2)
into the hole of the carburetor
support, place a string (1) that is
approx. 15 cm long around the
manifold flange
2410RA510 TG
2
1
2410RA511 TG
2
1
– Coat manifold flange with STIHL
press fluid, b 16
: Pull the manifold flange (2)
through the opening by the ends
of the string (1), at the same time
pressing the carburetor
support (3) against the manifold
flange
– Remove the string
: Orient the carburetor support (1)
so that the openings (arrows)
rest against the studs (2)
2410RA512 TG
2
1
3
2410RA513 TG
1
2
2
The hole (arrow) of the intake
elbow (1) must be unobstructed;
clean if necessary – a fouled hole
can lead to impaired engine
performance, b 3.7.
Versions with manual fuel pump
: Check seat of the fuel return
line (1), if necessary. press it
completely into the
guides (arrows)
2410RA514 TG
1
2410RA426 TG
1