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Table of Contents
Twin Cylinder Engine Service Manual
February 2017 - Digital Edition
ELECTRICAL SYSTEM AND COMPONENTS
Ignition Coil Testing (Cont.)
Testing spark while engine is operating
1. Shut off the engine.
2. Connect in-line spark tester between the spark plug’s high tension terminal and the spark plug (Figure 7).
3. If two testers are available both coils can be checked at once.
4. Start the engine.
5. Monitor tester(s) for spark at both idle and fast throttle.
NOTE: Spark plug condition affects testing accuracy.
Figure 7