Stihl FS 90 User Manual

33FS 90, FS 90 R
English / USA
Fuel mix ages
Only mix sufficient fuel for a few days
work, not to exceed 3 months of storage.
Store in approved fuel-canisters only.
When mixing, pour oil into the canister
first, and then add gasoline. Close the
canister and shake it vigorously by hand
to ensure proper mixing of the oil with
the fuel.
Dispose of empty mixing-oil canisters
only at authorized disposal locations.
Before fueling, clean the filler cap and
the area around it to ensure that no dirt
falls into the tank.
Always thoroughly shake the mixture in
the canister before fueling your
machine.
In order to reduce the risk of burns
or other personal injury from
escaping gas vapor and fumes,
remove the fuel filler cap carefully
so as to allow any pressure build-up
in the tank to release slowly.
Opening the cap
: Raise the grip until it is upright.
: Turn the cap counterclockwise
(approx. a quarter turn).
: Remove the filler cap.
Gaso-
line
Oil (STIHL 50:1 or
equivalent high-quality oils)
US gal. US fl.oz
12.6
2 1/2 6.4
512.8
Fueling
249BA052 KN
249BA053 KN
249BA054 KN

Stihl FS 90 Specifications

General

Engine Displacement	28.4 cc
Fuel Type	Gasoline
Handle Type	Loop handle
Shaft Type	Straight
Fuel Capacity	0.53 l
Weight	5.8 kg
Cutting Attachment	Autocut 25-2
Engine Power	0.95 kW (1.27 bhp)