Stihl FS 460 Service Manual

15FS 240 C, FS 260 C, FS 360 C, FS 410 C, FS 460 C-M
Problem Cause Remedy
Power loss during acceleration, all
versions
Seal or spring of accelerator pump
worn or damaged
Replace carburetor
... Versions with M-Tronic Parts in carburetor or M-Tronic
wiring harness defective
Carry out M-Tronic diagnosis, if
necessary, replace carburetor or
M-Tronic wiring harness
Engine will not idle, idle speed too
high, versions without M-Tronic
Throttle shutter opened too wide by
idle speed screw LA
Set idle speed screw LA correctly
... All versions Oil seals / crankcase leaking Seal oil seals / crankcase, replace if
necessary
Throttle shutter does not close Replace carburetor
... Versions with M-Tronic Parts in carburetor or M-Tronic
wiring harness defective
Carry out M-Tronic diagnosis, if
necessary, replace carburetor or
M-Tronic wiring harness
Engine stops when idling, versions
without M-Tronic
Idle speed screw "too rich" or
"too lean"
Correct setting of low speed
screw L
Idle speed screw LA
setting incorrect – throttle shutter
completely closed
Set idle speed screw LA correctly
... All versions Idle jet bores
or ports blocked
Clean the carburetor
Tank vent faulty Replace tank vent
Leak in fuel line between tank and
carburetor
Seal connections or replace line
... Versions with M-Tronic Parts in carburetor or M-Tronic
wiring harness defective
Carry out M-Tronic diagnosis, if
necessary, replace carburetor or
M-Tronic wiring harness

Stihl FS 460 Specifications

General

Cutting Diameter	480 mm
Idle Speed	2, 800 rpm
Ignition System	Electronic
Carburetor	All-position diaphragm carburetor
Vibration Damping	Yes
Shaft Type	Straight
Fuel Capacity	0.75 liters
Maximum Power Speed	9500 rpm
Shaft Length	1, 800 mm