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MAINTENANCE
TP-6901 6/14 Maintenance 31
Replace the Spark Plugs
Spark plugs should be replaced at the recommended
intervals specified at the beginning of this section. Use
only the recommended spark plug or an equivalent.
See “Specifications of Main Components” in Section 8.
Required materials:
• Replacement spark plugs (4)
• Spark plug wrench
• Spark plug gap tool
• Torque wrench
• Clean, dry cloth
Procedure:
1. Stop the engine and allow it to cool.
Figure5-22
2. Use a cloth to wipe dirt and oil away from the area
around each of the four spark plug wires (A). See
Figure 5-22.
3. Disconnect the spark plug wires.
4. Wipe the interior of the spark plug tubes.
5. Use a spark plug wrench to remove the old spark
plugs.
Figure5-23
6. Use a spark plug gap tool to measure the gap (B)
on each new spark plug. Adjust the gap to
specification. See Figure 5-23.
Spark Plug Gap
0.9–1.0 mm (0.036–0.040 in.)
7. Install the new spark plugs in the cylinder head.
8. Tighten the spark plugs to specification.
Spark Plug Torque
18 Nm (13.3 ft.lb.)
Ignition Timing
The KG2204 engine has an electronic ignition system.
All functions of the ignition system, including timing, are
controlled by the ECM and cannot be adjusted. Contact
your KOHLER authorized distributor/dealer for
assistance with ignition-related performance issues.
!
CAUTION
Electrical shock can cause injury.
Do not touch wires while engine is
running.
WARNING
!
Hot parts can cause severe burns.
Do not touch engine while operating
or just after stopping.
Never operate engine with heat shields or guards
removed.
NOTICE
Label or mark spark plug wires before
disconnecting. Spark plug wires MUST be
installed in proper order.
K0384
A
K0390
B