Testing The Ignition Coil; Inspecting The Spark Plugs - Westerbeke 9.0 BCG Technical Manual

Testing the Ignition Coil (EAR
L Y
M
0 VEL S )
Measure the Ignition coil's primary and secondary resistance and capacitance as follows. Replace the coil
if any test fails to meet the resistance value given.
Primary Coil Resistance:
Secondary Coil Resistance:
Resistor Resistance:
(Replace only the resistor if it
fails this test.)
Inspecting the Spark Plugs
0.98
±
0.1 ohm
17.5 ±2.6 ohm
1.92
±
0.2 ohm
Condenser
Ignition coil
Inspect each spark plug for cracks, chips, or for fouling.
Clean of replace the spark plugs if necessary. Make sure
that new or used spark plugs are gapped before they are
installed in the engine.
WEAR AND ADHESION OF CARBON
PLUG GAP
Spark Plug Gap: 0.028 - 0.036 inches (0.7 - 0.9 mm)
Westerbeke Generators 126
CONDITION
DAMAGE AND
DETERIORATION
DAMAGE