Chicago Electric 98706 Set Up, Operating, And Servicing Instructions page 19

Engine not run-
ning Smoothly
Problem: Engine stops suddenly while running. See chart below:
Engine system possible Cause
Fuel Supply
System
Ignition System
Mechanical
problem
Problem: Engine runs excessively hot. See chart below:
Problem Possible Cause
Engine runs
1.
excessively
2.
hot
3.
4.
5.
6.
7.
8.
9.
REv 08g
SKU 98706 for technical questions, please call 1-800-444-3353.
1. Poor Fuel Quality.
2. Incorrect choke setting.
3. Incorrect Timing.
1. Fuel is used up.
2. Fuel Filter is clogged.
3. Carburetor Float is leaking.
4. Needle Valve sticks.
1. Engine Switch is in OFF position.
2. Spark Plug tip is burned through
or carbon fouled.
3. Spark Plug Wire is disconnected.
4. Spark Plug wire is shorting against
engine body or frame.
5. Ignition Coil is shorted or
damaged.
1. Engine Piston, Piston Rod, Valve
or Crankshaft may be damaged.
2. Generator Shaft may be seized.
Improper Ignition Timing.
Exhaust manifold, muffler or exhaust
pipe damaged or clogged.
Intake Manifold leaking.
Dirty or clogged Cylinder Cooling Fins.
Cooling Fan loose or damaged.
Bent Piston Rod
Worn Piston, Piston Ring or Cylinder
Wall.
Improper engine speed.
Worn Crankshaft Main Bearing.
1. Replace fuel with 91+ octane premium
unleaded gasoline.
2. Adjust the choke.
3. Have the timing checked by a qualified
technician.
possible solution
1. Check fuel level and refill as needed.
2. Clean Fuel Filter.
3. Replace if needed.
4. Clean and readjust.
1. Move Switch to ON position.
2. Clean or replace spark plug. Reset
gap to 0.030".
3. Check connections at both ends.
4. Check condition of spark plug wire,
replace as needed.
5. Check coil continuity and output.
1. Have serviced by a qualified
technician.
2. Disconnect engine and attempt to
rotate generator shaft by hand. Repair
or replace as needed.
Possible Solution
1. Check and reset Ignition Timing.
2. Check condition of exhaust system,
repair as needed.
3. Check condition of intake manifold
and gasket. Repair as needed.
4. Clean Cylinder Wall Cooling Fins.
5. Check condition of cooling fan.
Repair or replace as needed.
6. Replace Piston Rod.
7. Check clearances, replace as
needed.
8. Engine speed is self-regulating. Be
sure choke if fully open. Reduce
electrical load on generator.
9. Check for wear. Replace as needed.
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