Servicing Spark Plugs

CAUTION: Avoid injury! Touching hot surfaces can burn skin. The engine, components, and fluids are hot if the engine has been running. Allow the engine to cool before servicing or working near the engine and components.

NOTE: Check the spark plugs every 200 operating hours clean and replace if necessary.

1. Clean the area around the spark plugs before removing.

2. Turn key to off position.

3. 
   TCAL41093-UN-18JAN13

   Disconnect spark plug wires (A).

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4. Remove spark plug using a spark plug socket.

5. Clean spark plug carefully with a wire brush.

6. Inspect spark plug for:

   • Cracked porcelain.
   • Pitted or damaged electrodes.
   • Other wear or damage.

   • 
     TCAL41094-UN-18JAN13

     Replace spark plug as necessary.

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   • Check plug gap with a wire feeler gauge.
   • Gap (B) must be set to specification.

     Item	Measurement	Specification
     Spark Plug	Gap	76 mm (0.030 in.)

   • To change gap, move the outer electrode.
   • Install and tighten spark plug. Tighten plug to specification.

     Item	Measurement	Specification
     Spark Plug	Torque	27 N·m (20 lb.-ft.)

   • Connect spark plug wires.
   
   

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