14
14
Clean the air filter (Fig.20)
If the air cleaner is jam, it will output less enough
air and cause fuel consumption increase. Check
and clean it periodically.
Cleaning Period:
Once 50 hours’ working.
If work in hervy dust area, check it every day or
once 10 hours.
Replace:
each year or 300 hours’ running
1) Remove the air cleaner housing.
2) Remove paper element, paying attention to
prevent dust and foreign matter.
3) Check, clean or replace damaged air cleaner
parts.
4) Re-stall the air cleaner parts back.
fig.20
Clean the sediment cup (Fig.21)
First check fuel tank for fuel, if having, drain the
fuel in the fuel tank completely.
1) Remove the fuel sediment cup and o-ring.
2) Wash the sediment cup and o-ring in non-
flammable solvent and dry them thoroughly.
3) Place the o-ring in the fuel valve and install
the sediment cup. Then tighten the sediment cup
securely.
4) Move the fuel valve to the ON position and check
for leaks. And replace the o-ring if there is any
leakage.
G
B
Deposit Cup
O Seal Ring
Figure 21
fig.21
Clear Spark Plug(Fig.22/23)
In order to ensure the engine normal running,
the gap of the spark plug must be correct and no
deposit around the spark plug.
5) Remove the spark cap
6) Clear away dirt around the spark plug base.
7) Dismantle the spark plug with a spark plug
wrench.
8) Visually check the spark plug. Clean with a steel
brush. If the insulator is damaged, replace the
spark plug .
9) Measure the spark plug clearance with
a thickness feeler. The clearance should be
0.6~0.7mm. If adjustment is necessary, bend the
side electrode carefully.
10) Check if the spark plug gasket is in good
condition.
11) Screw the spark plug to the bottom first by hand
and then screw up with a spark plug wrench and
compress the gasket.
fig.22
17