Stihl FS 80 Service Manual

45FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85
: Remove the gasket (arrow).
– Remove the spacer flange with
gasket, b 9.2.3
Replace the spacer flange if it is
damaged or cracked.
VA
936RA169
Always use new gaskets.
Install in the reverse sequence.
– Tighten down the nuts firmly,
b 3.2
– Remove the carburetor, b 9.2.2
: Take the throttle cable out of the
tensioner (arrow).
VA
936RA214
: Take out the screws with washers
(arrows).
– Remove the spacer flange with
gasket.
VA
936RA215
: If necessary, pull the hex head
screws (1) out of the spacer
flange.
VA
936RA216
1
: Remove the screw with bushing
or push nut with pin (1).
: Take the tensioner (2) off the
spacer flange.
On version with push nut, always
install a new push nut.
VA
936RA208
1
2
: Take the adjusting screw (arrow)
out of the tensioner.
Install in the reverse sequence.
VA
936RA209
9.2.3 Spacer Flange

Stihl FS 80 Specifications

General

Engine Type	2-stroke
Displacement	25.4 cc
Cutting Diameter	420 mm
Shaft Type	Straight
Starter	Recoil
Sound Power Level	106 dB(A)
Fuel Capacity	0.44 liters
Vibration Level	4.5 m/s²