Ground Check - Lycoming IO-320-A1A Operator's Manual

LYCOMING OPERATOR'S MANUAL
IO-320 SERIES

6. GROUND CHECK.

Controllable Pitch Propeller –
Aircraft that are equipped with fixed pitch propeller, or not equipped with manifold pressure
gage, may check magneto drop-off with engine operating at a maximum of 2000-2100 RPM.
NOTE
OPERATING INSTRUCTIONS
SECTION 3