Maintenance And Care - Echo PB-7700 Operator's Manual

Replacing fuel filter
1. Fuel cap
3. Fuel line
5. Fuel tank
Carburettor adjustment
1. Screw
2. Fuel filter
4. Fuel line hook

Maintenance and care

Tools required: 200-250 mm (8-10 in.) length of wire with
one end bent into a hook, clean rag, funnel,
and an approved fuel container
Parts required: Fuel line and filter
Fuel is VERY flammable. Use extreme care when mixing,
storing or handling.
NOTE
If filter is excessive dirty or no longer fits properly, replace it.
1. Use a clean rag to remove loose dirt from around fuel cap
and empty fuel tank.
2. Use the "fuel line hook" to pull the fuel line and filter from the
tank.
3. Remove the filter from the line and install the new filter.
Tools required: Screwdriver, tachometer (Echo P/N
99051130017)
Parts required: None
NOTE
Every unit is run at the factory and the carburettor is set in com-
pliance with Emission Regulations. This carburettor does not
have acceleration and high speed adjustment needles. Do not
attempt to use carburettor adjustment procedures provided in
the Warranty Emissions Booklet.
Before Adjustment
Check that:
Air filter is clean and properly installed.
Spark arrester screen and silencer are free of carbon.
Blower pipes are installed.
1. Start engine, run at idle for one minute.
2. Complete warm up by running at full throttle for 5 minutes,
operating choke twice to clear air from carburettor cham-
bers.
3. Check idle speed and reset if necessary. If a tachometer is
available, idle speed screw should be set to the specifica-
tions found on Page 26"Specifications" of this manual. Turn
idle screw clockwise to increase idle speed; anticlockwise to
21
DANGER