Solo USA 280 User Manual

MS 270, MS 270 C, MS 280, MS 280 C

If you did not move the Master Control 
lever to “Warm Start” 

n quickly enough 

after the engine began to fire, the 
combustion chamber has flooded.

:

Loosen knob (1) in direction of 
arrow.

:

Remove the carburetor box 
cover (2).

:

Pull off the spark plug boot (3).

:

Unscrew and dry off the spark plug.

:

Set the Master Control lever to 
“Stop” position 

$ 

:

Press down the interlock lever, open 
the throttle wide and, at the same 
time, crank the engine several times 
with the starter to clear the 
combustion chamber.

:

Refit the spark plug and connect the 
spark plug boot  –
reassemble the other parts.

:

Set Master Control lever to “Warm 
Start” 

n – even if engine is cold.

:

Press in decompression valve.

:

Now start the engine.

A factory new machine should not be run 
at high revs (full throttle off load) for the 
first three tank fillings. This avoids 
unnecessary high loads during the 
break-in period. As all moving parts 
have to bed in during the break-in 
period, the frictional resistances in the 
engine are greater during this period. 
The engine develops its maximum 
power after about 5 to 15 tank fillings.

Do not make the mixture leaner to 
achieve an apparent increase in 
power – this could damage the 
engine – see “Adjusting 
Carburetor”.

Always disengage the chain brake 
before opening the throttle. Running 
the engine at higher revs with the 
chain brake engaged (saw chain at 
a standstill) will quickly damage the 
engine and chain drive (clutch, 
chain brake).

146BA010 KN

146BA009 KN