Zenoah BK3420FL-EZ - Manual (Page 25)

engine does not stop).
The engine revolution speed increases when you turn the
idling adjustment screw clockwise, and decreases when you
turn it counterclockwise.
Standard idling revolution speed: 2,300 to 2,700 rpm
(1) Idling adjustment screw
■ MAINTENANCE BEFORE LONG-TERM STORAGE
This machine is highly inflammable.
• When you take fuel out, keep the fuel tank well
away from flames.
• Be careful not to spill the fuel, and completely
wipe off all fuel spills.
• If you will not use the machine for a long time (two
months or more), take out the fuel from the fuel tank
and carburetor. If you leave the fuel tank and
carburetor filled with fuel for a long time, the fuel might
deteriorate and clog the inside of the carburetor, thus
causing engine problems (such as wrong start or
insufficient output).
• When storing the machine for a long time, loosen the
cap of the fuel tank slightly. Excessive tightening of
the cap might deform its packing over time.
1. Brush off dirt from the machine, and check the
damage or slack of each part. If you find any abnormal
part, repair it completely ready for the next time the
machine is used.
2. Extract fuel from the fuel tank, switch on the engine,
and leave it running until it stops naturally.
3. Remove the spark plug, and pour 1 to 2 ml of 2-cycle
oil into the engine. Draw the starter rope two to three
times, set the plug back, and stop it at the contraction
position.
4. Supply some grease to the gear case, and apply anti-
rust oil to the metal parts such as the throttle wire.
5. Apply a little oil to the blade, put the cover on the
blade, and keep the machine in a safe place away
from heat and humidity.
(1) Tank cap
(2) Fuel tank
IMPORTANT
WARNING
25
7. Maintenance
MA12