J.P. Instruments EDM 930 Primary Pilots Guide - Manual (Page 26)

For Your Safe Flight Page 21
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
b
e
lo
w
p
e
a
k
P
e
rc
e
n
t
o
f
b
e
s
t
p
o
w
e
r
C
H
T
°F
c
h
a
n
g
e
fr
o
m
b
e
s
t
p
o
w
e
r
Best
economy
range
Best
power
range
0
-200
-100
-300
-20
20
-60
-40
0
-80
100
85
90
95
80
EG
T
CH
T
Perc
ent p
owe
r
Sp
ecif
ic
fue
l co
ns
um
ptio
n
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