For Your Safe Flight
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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:
E
G
T °
F be
low
p
ea
k
P
erc
en
t o
f b
est po
we
r
CH
T °
F c
ha
ng
e
from
be
st p
ow
er
Best
economy
range
Best
power
range
0
-200
-100
-300
-20
20
-60
-40
0
-80
100
85
90
95
80
EG
T
CHT
Perc
ent p
ower
Sp
ecif
ic fu
el c
ons
um
ption
Over
lean
Lean
Rich
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