Electrical WM 130/170/270 Repair
wc_tx000381gb.fm 90
11. Electrical
11.1 Magneto
Wacker engines use a TRANSISTOR IGNITER CIRCUIT (TIC) type,
breakerless magneto ignition system. The TIC has the ignition coil
outside the flywheel and a lighting coil inside. The flywheel is a
specialized piece of equipment.
11.2 Inspecting the Magneto
If the engine does not start, has difficulty starting, or does not run
smoothly, check the magneto in the following manner:
11.2.1 Check the high-tension cable for any damage or short circuiting.
11.2.2 Check the spark:
• Take the spark plug out of the cylinder, connect the spark plug
cap to the spark plug and ground the spark plug on the cylinder
head or any other metal position of the engine.
• Pull the recoil starter and check the spark plug gap for sparking. If
the spark plug is sparking, check the intensity of the spark.
• Disconnect the spark plug cap from the spark plug and check the
spark between the high-tension wire and the cylinder block.
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