00-027
UnclassifiedSpeed
What This Code Means
Engine difficult to start; Engine idles rough; Excessive engine noise; Engine overspeeds; Engine noise excessive
Possible Causes
- •Faulty air cleaner element
- •Faulty fuel filter
- •Faulty intake manifold gaskets
- •Faulty fuel pump
- •Faulty carburetor
- •Faulty magneto coils
- •Faulty shut down diode
- •Fuel supply issue
- •Faulty spark plugs
- •Faulty carburetor choke
- •Faulty spark plug wires
- •Exhaust system issue
- •Engine mounting issue
- •Incorrect valve lash
- •Incorrect starter to ring gear clearance
- •Incorrect governor adjustment
- •Faulty throttle cable
- •Air cleaner element
- •Fuel filter
- •Intake manifold gaskets
Suggested Actions
- 1Inspect air cleaner element
- 2Inspect fuel filter
- 3Inspect intake manifold gaskets
- 4Inspect fuel pump
- 5Inspect carburetor
- 6Inspect magneto coils
- 7Inspect shut down diode
- 8Perform engine leak down test
- 9Check fuel supply
- 10Check spark plugs
- 11Check carburetor choke
- 12Check spark plug wires
- 13Check magneto coils
- 14Check exhaust system
- 15Check engine mounting
- 16Check valve lash
- 17Check starter to ring gear clearance
- 18Check governor adjustment
- 19Check throttle cable
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