DR-26B Checking Spark Advance

This test must be performed with engine warm.

1. With tachometer and timing light connected, air cleaner removed and engine fully warm, turn engine off and restart. Power loss lamp on instrument panel must go off.
2. Raise engine speed to 2,000 RPM's.
3. If timing is 33°---41°, proceed to Test 27.
4. If timing is not 33°---41°, replace logic module.