Engine Troubleshooting

Problem: Low power output. Engine bogs down or dies under load. Excess exhaust or unburned fuel in exhaust. See chart below:

Engine System

Possible Cause

Possible Solution

 

 

 

Ignition System

Incorrect Ignition Timing

Adjust Engine Advance Angle

Fuel Supply System

1.

Air in fuel line or fuel line clogged.

1.

Purge air or clear obstruction.

 

2.

Main Jet not adjusted properly.

2.

Readjust Main Jet.

 

3.

Metering Jet or Main Jet clogged.

3.

Clean and Readjust.

 

4.

Fuel Cock clogged.

4.

Clean as needed.

 

5.

Carbon Fouling in Combustion

5.

Clean out Combustion Chamber.

 

 

Chamber.

 

 

 

6.

Clogged Air Filter.

6.

Clean or replace Air Filter.

 

7.

Intake Manifold leaking.

7.

Repair or replace as needed.

Poor Compression

1. Worn Piston, Piston Ring or

1.

Check compression and wear

 

 

Cylinder Wall.

 

tolerances, repair or replace as

 

 

 

 

needed.

 

2.

Leaking Cylinder Head Gasket.

2.

Check compression, replace as

 

 

 

 

needed.

 

3.

Worn Valves, Valve Seats, Stems

3.

Check wear tolerances, repair or

 

 

or Valve Guides.

 

replace as needed.

Problem: Engine does not start or does not run smoothly. See chart below:

Symptom

Possible Cause

Possible Solution

Engine is Pinging

Excess wear of:

Check wear, replace as needed.

 

• Piston, Cylinder Wall or Rings.

 

 

 

• Piston Pin or Piston Pin Hole.

 

 

 

• Connecting Rod Wrist Pin.

 

 

 

•

Crankshaft Roller Bearing.

 

 

Abnormal Com-

1.

Combustion chamber carbon

1.

Clean out Combustion chamber and

bustion or engine

 

fouling.

 

spark plug.

running hot or

2.

Dirty or old gasoline or oil in gas.

2.

Drain gas, clean out fuel filter and

excess smoking.

 

 

 

replace with fresh gas, minimum 91

 

 

 

octane premium unleaded gasoline.

 

 

 

 

Engine does not

1.

Engine Switch in OFF position.

1.

Move Switch to ON position.

start.

2.

Water in Carburetor Bowl.

2.

Drain carburetor Bowl, clean Fuel

 

 

 

 

Filter.

 

3.

Spark Plug gap not correct.

3.

Clean and re-gap plug to 0.024” -

 

 

 

 

0.031”. Replace plug if needed.

 

4.

Incorrect Ignition Timing.

4.

Check timing and adjust.

 

5.

Damaged coil or ignition wires.

5.

Check for damaged wires, test output.

 

6.

Low Oil level.

6.

Check oil level, top off as needed.

SKU 67561

For technical questions, please call 1-800-444-3353.

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Chicago Electric 67561 manual Engine Troubleshooting, Engine System Possible Cause Possible Solution
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67561 specifications

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In conclusion, the Chicago Electric 67561 is a high-performing tool that combines durability, powerful motor capability, and user-friendly features. Its design and technology make it suitable for a wide range of woodworking applications, making it a worthwhile investment for anyone serious about their craft.
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