EM-42
ENGINE MECHANICAL
EngiM
Tune-up 14A·GEI
ADJUSTMENT OF IDLE SPEED AND IDLE
MIXTURE (w/o TWC)
1.
INITIAL CONotTIONS
III
E"9ine "
reach
normel oper8ling
tempera lure
Ibl
Air
dlllner instened
Ie,
All pipe,
el\d
hOMa
01
ai
r
induclion system con-
nected
lell
All
vacuum
liM.
p
r
o
per
l
y
conne<:ted
lei
EFI
system
w
iri
ng conneetors
fully
plugged
(fl
I
gn
iti
o
n
timing tet COITe<:tly
191
A
l
l
accessories
switched
OFF
(h) Transmission
in
"N"
r�nge
2. STAAT ENGINE
3. CONNECT TACHOMETER (S"
pege
EM-371
4. CHECk AIR VALVE OPERATION
ISee
plge FI-87)
!I.
ADJUST IDLE SPEED
Cal
RBce the
engine
BI
2.500
rpm lor
I
lew seconds.
(bl
Check
the
idle speed.
Idle .peed:
800 rpm
(wi C
oo
l
i
n
g
fin
OFFI
AdiuS11ng
Icl
Adjust
the
idle
speed
by
turning
the
IOLE
SPEED
SCrtlW
ADJUSTING
SCREW.
6. ADJUST IDLE MIXTURE
CAUTION: Atwly.
ute
I
CO
meter
whln
.dJustlng
th
e
Idl. mlxtut'e.
It I.
not n.c .
..
.
ry
to
Idlu.t
with
the
Idl. mixture Idjusting
.crew in most vehicle
if they ere
In good
condition.
If
•
CO
meter
Is
not
eveileble,
DO
NOT ATTEMPT TO ADJUST IDLE MIXTURE.
tel
R
a
c
.
the
engine "
2.500
rpm for
eppro�. 90
second
•.
