Stihl MS 240 User Manual

16 MS 240, MS 260, MS 260 C
Condition Cause Remedy
Engine will not idle, idle speed too
high
Throttle shutter opened too wide by
idle speed screw LA
Reset idle speed screw LA
correctly
Oil seals/crankcase leaking Seal or replace oil seals/crankcase
Engine stalls at idle speed Idle jet bores
or ports blocked
Clean the carburetor
Setting of low speed screw too rich
or too lean
Reset low speed screw L correctly
Setting of idle speed screw LA
incorrect – throttle shutter
completely closed
Reset idle speed screw LA
correctly
Tank vent faulty Replace tank vent
Leak on fuel hose from tank to
carburetor
Seal connections or install new fuel
hose

Stihl MS 240 Specifications

General

Chain pitch	3/8"
Oil Capacity	0.2 L
Guide bar length (recommended)	40 cm
Engine Power	2.0 kW (2.7 bhp)
Displacement	41.6 cm³