TESTING AND ADJUSTING
EX20 Series 20-5
3. REPLACEMENT FUEL FILTER
1) Remove the filter cartridge with a filter wrench.
2) Fill a new cartridge with fuel and apply engine oil
thinly to its packing, then install it.
3) Loosen plug and move knob up and
down until bubbles do not come out any more.
4) Tighten plug .
4. CLEAN CRANKCASE BREATHER
1) Remove the cover, then remove the wire net.
2) Clean the wire net in cleaning oil.
3) Dry off the wire net.
4) Soak the wire net in clean engine oil, then install
it.
ENGINE