Operation Manual
96 MS 240, MS 260, MS 260 C
14.6.2 Impulse Hose
A damaged impulse hose can result 
in engine running problems.
– Remove the carburetor, b 14.2
– Take out the annular buffer/tank 
housing mounting screws.
Annular buffer at ignition side, 
b 11.3.
Annular buffer at clutch side, 
b 11.2
– Push the manifold flange out of 
the tank housing, and lower the 
tank housing slightly, 
b 14.6.1
: Pull the impulse hose (1) off the 
connector (arrow).
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: Pull the impulse hose (1) out of 
the tank housing in the direction 
of the throttle trigger.
– Check the impulse hose (1) and 
replace if necessary
: Push the impulse hose (1) 
through the opening (arrow) and 
pull it in until its rubber lip is 
properly seated.
– Coat with STIHL press fluid, 
b 17
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: Push the impulse hose (1) on to 
the connector (arrow).
– Reassemble all other parts in the 
reverse sequence.
14.7 Tank Vent
14.7.1 Testing
If problems occur on the carburetor 
or the fuel supply system, also 
check and clean the tank vent and 
replace it if necessary. Check 
function by performing pressure and 
vacuum tests on the tank via the fuel 
hose.
– Open the fuel tank cap and drain 
the fuel tank.
– Collect the fuel in a clean 
container, b 1
– Close the tank cap.
1
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