J.P. Instruments EDM 960 Twin Pilots Guide - Manual (Page 25)

For Your Safe Flight Page 20
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
bel
ow
peak
P
er
cent
of
bes
t pow
er
C
H
T
°F
c
hange f
rom
bes
t pow
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 pow
er
Spec
ific f
uel
co
ns
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