-14-
2. Fuel system maintenance.
(1)Water or dirt in fuel is one of fue main causes of fue engine trou-
ble. cleanfue fuel system regularly.
(2)Residual fuel remaining in fue fuel tank and carburetor for long
time will guroand clog fue fuel system.
3. Air filter and pingo
(1)Clean the filter after every day operation. Dirt adhering to sponge
reduce theengine power.
(2)Dry filter before reinstalling.
(3)Clean stains or carbon off the spark plug and adjust spark gap to
0.6-0.7mm. See FIG 10
4. Long time storage.
(1) Clean the machine and apply antirust oil to metal parts.
(2) Remove the spark plug and pour 15-20g of 2-stroke engine oil
into the cylinderthrough the spark plug pole. Pull the starter handle
4-5 times to distribute the oilinside the engine. Pull the handle slowly
until the piston reaches the top of its traveland leave it there, then
install the spark plug.
(3) Remove the chemical tank, clean the dust gate and inside and
outside of chemicaltank, then install the tank and leave the lid loose.
(4) Remove spray units and clean them Store by them.
(5) Discharge fuel in the tank and carburettor entirely.
(6) Cover the machine with plastic dustcoat and store it in a dry and
clean place.
