Toyota 4-Runner 1985 Repair Manual page 19

Rubber Cap
For HAl System
MAINTENANCE - Maintenance Operations
MA-9
~MA0010
Ignition Coil
MA0308
MA0310
(c) Race the engine at 2,500 rpm for about 2 minutes.
(d) Set the idle speed by turning the IDLE SPEED ADJUST-
ING SCREW.
Idle speed: 750 rpm
(e) Remove the tachometer.
B. 22R ENGINE
(a) Preparation
• Air cleaner installed
• Choke valve fully open
• Accessories switched off
• All vacuum lines connected (i.e., AS, EGR systems,
etc.)
• Transmission in N range
• Engine idling at normal operating temperature
(b) Connect a tachometer to the engine.
Remove the rubber cap and connect the tachometer
positive (
+ )
terminal to the service connector at the
igniter.
CAUTION:
1 . NEVER allow the tachometer terminal to touch ground
as it could result in damage to the igniter and/or igni-
tion coil.
2. As some tachometers are not compatible with this ig-
nition system, it is recommended that you consult
with the manufacturer.
(c) Set the idle speed by turning the IDLE SPEED ADJUST-
ING SCREW.
Idle speed: 700 rpm M/T
750 rpm AfT
NOTE: Leave the tachometer connected for further ad-
justment.
15. 22R ENGINE ONLY:
ADJUST FAST IDLE SPEED
(a) Stop the engine and remove the air cleaner.
(b) Plug the hose connections for HAl system and MC
system (w/M/T only) to prevent rough idling.