Engine Misses or Runs Erratically.

SECTION III (Con't.)

Possible remedy

Probable cause

Spark plugs defective-------------------- Clean and adjust or

replace spark plugs.

----------------------- Repair or replace mag-

Magneto faulty

neto contact point set.

Engine Misses or Runs Erratically.

3-9

Probable cause

Possible remedy

Carburetor gasket leaks ------------------ Tighten carburetor

mounting bolts. Replace

gasket if leak persists.

------------------------------- Test spark

Spark weak

Spark gap incorrect ---------------------- Measure and reset spark

plug gap.

Ignition wiring loose -------------------- Tighten ignition wire

connections.

Magneto contact points pitted or

incorrectly adjusted ---------------------- Clean, adjust, or re-

place contact points.

Governor defective -------------------------- Repair governor

3-10

Engine Stops Suddenly.

Probable cause

Possible remedy

Fuel pump defective ---------------------- Repair or replace fuel

pump.

Fuel line clogged ------------------------ Remove and clean fuel

line, replace if defect-

ive.

Magneto contact set defective ------------ Replace defective con-

tact set.

Hydraulic fluid temperature excessive---- Allow fluid to cool.

3-11

Engine Overheats.

Probable cause

Possible remedy

Cylinder cooling fins dirty -------------- Clean dust and dirt

from cooling fins.

----------------------- Time the magneto.

Magneto timed late

Air shroud partially removed

from engine ---------------------------- Install the missing

shroud

3-12

Engine Knocks or Develops Excessive Noise.

Probable cause

Possible remedy

Magneto timing advanced too far --------------- Time the magneto.

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