Troubleshooting - Echo GT-1100 Operator's Manual

TROUBLESHOOTING
TROUBLE
CAUSE
WHATTO DO
1
.
Engine fails to start.
No fuel in tank.
Fill tank.
Strainer clogged.
Clean strainer.
Fuel line clogged.
Clean fuel line.
Spark plug shorted or fouled.
Spark plug broken (cracked procelain or
electrodes broken).
Install new spark plug.
Replace spark plug.
Ignition lead wire shorted, broken or
Replace lead wire or attach to spark
disconnected from spark plug. plug.
Ignition inoperative (no spark from lead
wire).
Contact your nearest authorized dealer.
2. Engine hard to start.
Water in gasoline or stale fuel mixture.
Drain entire system and refill with fresh
fuel.
Too much oil in fuel mixture.
Drain and refill with correct mixture.
Engine over or under choked.
If flooded by over choking, proceed
according to instructions in previous
section. If under choked, move choke
lever to closed position and crank two or
three times.
Carburetor out of adjustment.
Gasket leaks (carburetor or cyt. base
gasket).
See "Carburetor Adjustment."
Replace gaskets.
Weak spark at lead wire.
Contact your nearest authorized dealer.
3. Engine misses.
Dirt in fuel line or carburetor.
Remove and clean.
Carburetor improperly adjusted.
See "Carburetor Adjustment" in service
section.
Spark plug fouled, broken or incorrect
Clean or replace spark plug - set gap to
gap setting.
0.6-0.7 mm (0.024-0.028).
Weak or intermittent spark at lead wire.
Contact your nearest authorized dealer.
4. Engine lacks power.
Air cleaner clogged.
Clean air cleaner.
Carburetor out of adjustment.
See "Carburetor Adjustment."
Muffler clogged.
Clean carbon from muffler.
Clogged exhaust ports.
Remove muffler, rotate engine until the
piston is at bottom of cylinder. With a
wooden scraper or blunt tool, remove all
carbon from exhaust ports. Be careful not
to scratch or damage piston or cylinder
walls. Blow out loose carbon with
compressed air. Start engine and run
briefly to remove all carbon, then install
muffler and gasket.
Poor compression.
Contact your nearest authorized dealer.
5. Engine overheats.
Insufficient oil in fuel mixture.
Mix fuel as shown in starting instructions.
Air flow obstructed.
Clean flywheel and cylinder fins and
screen.
6. Engine noisy or knocking.
Loose flywheel.
Spark plugs incorrect heat range.
Worn bearings, piston rings or cylinder
walls.
Tighten flywheel nut.
Replace with plugs specified for engine.
Contact your nearest authorized dealer.
7. Engine ''stalls" under load.
Carburetor main adjustment too "lean."
See "Carburetor Adjustment."
Engine overheats.
See "Carburetor Adjustment,"
12