J.P. Instruments EDM-960

For Your Safe Flight Page | 22
The illustration below shows the various relationships between the
mixture, fuel flow and engine power:
The following pages provide step by step guidelines in leaning your
engine, for both rich of peak and lean of peak modes:
EGT °F below peak
Percent of best power
CHT °F change from
best power
Best
economy
range
Best
power
range
0
-200
-100
-300
-20
20
-60
-40
0
-80
100
85
90
95
80
EGT
CHT
Percent power
Specific fuel consumption
Over
lean
LeanRich
Full Rich
(Take-off)
Leaner Mixture
Peak
Power
First cylinder
to peak. Use
Rich of Peak
leaning
Last cylinder to
peak. Use Lean of
Peak leaning with
GAMI injectors
GAMI
spread