Troubleshooting - ENGINE

Problem

 

Possible Causes

 

Probable Solutions

Engine will not

Fuel Related:

Fuel Related:

start

1.

Improper gasoline/2 cycle oil mix.

1.

Mix 50 parts unleaded gasoline with 1

 

 

 

 

part 2-cycle oil.

 

2.

No fuel in tank or fuel valve closed.

2.

Fill fuel tank and open fuel valve.

 

3.

Choke not in start position, especially

3.

Move choke to start position if engine

 

 

with cold engine.

 

is cold.

 

4.

Low quality or deteriorated, old

4.

Use only fresh 89+ octane unleaded

 

 

gasoline.

 

gasoline and 2-cycle oil mixture.

 

5.

Carburetor not primed.

5.

Prime carburetor by pressing priming

 

 

 

 

bulb specified number of times (if

 

 

 

 

equipped).

 

6.

Dirty fuel passageways blocking fuel

6.

Clean out passageways using fuel

 

 

flow.

 

additive. Heavy deposits may require

 

 

 

 

further cleaning.

 

7.

Carburetor needle stuck. Fuel can be

7.

Gently tap side of carburetor float

 

 

smelled in the air.

 

chamber with screwdriver handle.

 

8.

Too much fuel in chamber. This can be

8.

Turn choke to run position. Remove

 

 

caused by a stuck carburetor needle.

 

spark plug and pull the start handle

 

 

 

 

several times to air out the chamber.

 

 

 

 

Reinstall spark plug and set choke to

 

 

 

 

start position.

 

Ignition (spark) Related:

Ignition (spark) Related:

 

1.

Spark plug wire not connected

1.

Connect spark plug wire properly.

 

 

securely.

 

 

 

2.

Spark plug electrode wet or dirty.

2.

Clean spark plug.

 

3.

Incorrect spark plug gap.

3.

Correct spark plug gap.

 

4.

Spark plug wire or spark plug broken.

4.

Replace spark plug wire and/or spark

 

 

 

 

plug.

 

5.

Incorrect spark timing or faulty ignition

5.

Have qualified technician diagnose/

 

 

system.

 

repair ignition system.

 

Compression Related:

Compression Related:

 

1.

Cylinder not lubricated. Problem after

1.

Pour tablespoon of oil into spark plug

 

 

long storage periods.

 

hole. Crank engine a few times and try

 

 

 

 

to start again.

 

2.

Loose or broken spark plug. (Hissing

2.

Tighten spark plug. If that does not

 

 

noise will occur when trying to start.)

 

work, replace spark plug. If problem

 

 

 

 

persists, may have head gasket

 

 

 

 

problem, see #3 below.

 

3.

Loose cylinder head or damaged head

3.

Tighten head. If that does not remedy

 

 

gasket. (Hissing noise will occur when

 

problem, replace head gasket.

 

 

trying to start.)

 

 

 

4.

Engine valves or tappets misadjusted

4.

Adjust valve clearance. If that does not

 

 

or stuck.

 

work, clean or replace valves/tappets.

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.

SKU 66619

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

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Chicago Electric 66619 manual Troubleshooting Engine, Problem Possible Causes Probable Solutions Engine will not, Start

66619 specifications

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