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FS 410 C K
English
14
N
Place the circular saw blade (1) in
position.
Collar (a) must locate in the saw blade's
mounting hole (b).
N
Fit the thrust washer (2) – convex
side must face up.
N
Fit the rider plate (3).
N
Block the drive shaft.
N
Screw on the nut (4)
counterclockwise and tighten it
down firmly.
If the mounting nut turns too freely, fit a
new one.
Remove the tool used to block the shaft.
Removing the Circular Saw Blade
N
Block the drive shaft.
N
Unscrew the mounting nut
clockwise.
Remove the tool used to block the shaft.
This engine is certified to operate on
unleaded gasoline and with the mix ratio
50:1.
Your engine requires a mixture of high-
quality premium gasoline and high-
quality two-stroke air-cooled engine oil.
Use premium branded unleaded
gasoline with a minimum octane rating
of 89 (R+M)/2.
Note: Models equipped with a catalytic
converter require unleaded gasoline. A
few tankfuls of leaded gasoline can
reduce the efficiency of the catalytic
converter by more than 50%.
Fuel with a lower octane rating may
result in preignition (causing "pinging")
which is accompanied by an increase in
engine temperature. This, in turn,
increases the risk of the piston seizure
and damage to the engine.
The chemical composition of the fuel is
also important. Some fuel additives not
only detrimentally affect elastomers
(carburetor diaphragms, oil seals, fuel
lines etc.), but magnesium castings as
well. This could cause running problems
or even damage the engine. For this
reason it is essential that you use only
high-quality fuels!
Fuels with different percentages of
ethanol are being offered. Ethanol can
affect the running behaviour of the
engine and increase the risk of lean
seizure.
2
3
1
4
002BA431 KN
b
a
Fuel