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Mazda 121 - Ignition Timing Inspection;Adjustment; Idle Speed

Mazda 121
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ENGINE
TUNE.UP
F
INDICATOF
fi
-)
lgnition Timlng
Inspection /
Adjustment
'1.
Perform
"Preparation".
(Reler
to
page
F-62.)
2. Verity
that the idle speed is
within the specification.
ldle speed: irTX
(Neutral)
750
::E rpm
ATX
(P
range)
1,100
:'6 rpm
3. Check the
ignition timing with a
timing light.
lgnition
timing: BTDC 16
+
l"
4. lf the ignition timing
is not within specification,
loosen the
distributor lock bolts and
turn the distributor
to make the
adjustment.
5. Tighten the distributor
lock bolts to the specified
torque.
Tighlening
torque:
l6-23
Nm
(1.6-2.3
m-kg,
l2-16 ftlb)
ldle
Speed
1. Perform
"Preparation".
(Refer
to
page
F-62.)
2. Check the
idle speed with a
tachometer.
ldle speed;
MTx
(Neuttal) ?50 158 rPm
ATX
(P
range) 1,'100
:"8 rPm
3. l, not within specification, adjust
the
idle
bytuning
the throttle
adjusting
screw.
F-63

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