CAUTION
Do not over-prime or excessively pump the throttle (carburetor accelerator pump)
due to the resulting fire hazard.
The use of the fuel primer will vary with each engine and temperature condition.
If the engine is warm, little or no prime is required. During cold weather
conditions, 4 to 6 priming strokes may be required.
During cold weather operation (below 20 degrees F) it is recommended that the
engine be preheated by directing warm air through the opening in the bottom or
front of the engine cowl. This practice will prolong the service life of the engine
and starter.
In very cold weather, it is important to use the proper viscosity engine oil and to
run the engine sufficiently long to bring the engine oil to the normal operating
temperature.
During ground operation, the mixture should be FULL RICH and the
carburetor/alternate air COLD to ensure good engine cooling and filtered air.
Prolonged idle below 1000 RPM is not recommended due to plug fouling and
insufficient cooling air when the aircraft is not in motion.
BEFORE TAXI
1. Controls free
2. Clear area
3. Oil temp increasing
4. Oil pressure 30 psi minimum
5. Seat Adjusted and Belts secure
6. Test Brakes after shot roll under low power
7. Check wind and use proper control positions for safe taxi
RUNUP
1. Head into wind
2. Oil pressure 30 psi minimum
3. Oil temp 100 deg minimum
4. Brakes secure
5. Control stick full aft
6. Throttle 1700 RPM
7. Left mag (100 RPM drop max)
8. Right mag (100 RPM drop max)
9. Mags switch BOTH
10. Carb heat (75 RPM minimum drop)
11. Static RPM 2150 minimum
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