After all the parts are oiled, and the tanks filled, the following must be looked after before starting: See if crank-shaft flange is tight on shaft. See if propeller bolts are tight and evenly drawn up. See if propeller bolts are wired. See if propeller is trued up to within 1⁄8′′.
Every four days the magnetos should be oiled if the engine is in daily use.
Every month all cylinder hold-down nuts should be gone over to ascertain if they are tight. (Be sure to recotter nuts.)
See if magnetos are bolted on tight and wired.
See if magneto cables are in good condition.
See if rocker arm tappets have a .020′′ clearance from valve stem when valve is seated.
See if tappet clamp screws are tight and cottered.
See if all gasoline, oil, water pipes and connections are in perfect condition.
Air on gas line should be tested for leaks.
Pump at least three pounds air pressure into gasoline tank.