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Rally Pilot Operating Handbook
Copyright 2008, Rally Aircraft
Revision 4.1
54
Cold weather starting procedures are as follows:
1. With ignition switch OFF and throttle closed, PRIME the engine four to
ten strokes as the propeller is being turned over by hand
NOTE
After priming, push the primer all the way in and lock in position to avoid possibility
of engine drawing fuel through the primer.
2. Propeller area ................ CLEAR
3. Master switch ................. ON
4. Fuel pump ..................... ON
5. Throttle ...................... OPEN 0.4 in
6. Ignition switch ............... START
7. Oil pressure .................. CHECK
NOTE
If the engine does not start during the first few attempts, it is probable that the
spark plugs have been frosted over. Preheat must be used before another start is
attempted.
WARNING
Pumping the throttle may cause raw fuel to accumulate in the intake air duct, cre-
ating a fire hazard in the event of a backfire. If this occurs, maintain a cranking ac-
tion to suck flames into the engine. During cold weather operations, no indication
will be apparent on the oil temperature gage prior to takeoff if outside air tempera-
tures are very cold. After a suitable warm-up period (2 to 5 minutes at 2000 rpm),
accelerate the engine several times to higher engine rpm. If the engine accelerates
smoothly and the oil pressure remains normal and steady, the airplane is ready for
takeoff.