Mantis 7945 Betreibershandbuch PDF herunterladen (Seite 19)

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Troubleshooting

Problem Cause Remedy

1. Tines don’t turn when throttle

is depressed

• Engine is not seated properly on the gear housing. • Re-install engine following the instructions on

page 18 “How to reseat the flange”.

2. Engine fails to start

• O/I switch is in “O” position.

• No fuel in tank.

• Fuel strainer clogged.

• Fuel line clogged.

• Spark plug shorted or fouled.

• Spark plug is broken (cracked porcelain or

electrodes broken)

• Ignition lead wire shorted, broken or disconnected from

spark plug.

• Ignition inoperative

• Move switch to “I”

• Fill Tank.

• Replace Strainer.

• Clean fuel line.

• Install new spark plug.

• Replace spark plug.

• Replace lead wire or attach to spark plug.

• Contact Mantis customer service.

3. Engine hard to start. • Water in gasoline.

• Gasket leaks (carburetor or cylinder base gasket).

• Weak spark at spark plug.

• Drain entire system and refill with fresh fuel.

• Contact Mantis customer service.

4. There is black smoke coming from exhaust • The muffler screen is clogged • Clean carbon from muffler screen following

instructions on page 18.

5. Engine misses. • Dirt in fuel line or carburetor.

• Carburetor improperly adjusted.

• Spark plug fouled, broken or incorrect

gap setting.

• Weak or intermittent spark at spark plug.

• Remove and clean.

• Contact Mantis customer service.

• Clean or replace spark plug - set

gap to .024-.028

in. (0.6-0.7 mm)

• Contact Mantis customer service.

6. Engine lacks power. • Air filter clogged.

• Muffler clogged.

• Spark Arrestor Clogged.

• Poor compression.

• Clean or replace air filter page 17.

• Clean carbon from muffler, page 18.

• Clean Spark Arrestor, page 12.

• Contact Mantis customer service.

7. Engine overheats. • Air flow obstructed • Clean flywheel cylinder fins and screen.

8. Engine noisy or knocking. • Spark plug in incorrect heat range.

• Bearings, piston ring or cylinder walls are worn.

• Replace with plugs specified for engine.

• Contact Mantis customer service.

9. Engine stalls under load. • Engine overheats. • Remove dust and dirt from between fins.

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