Toyota 4-Runner 1985 Repair Manual page 261

FU-18 FUEL SYSTEM - Carburetor
FU0289
5. CHECK AND ADJUST CHOKE OPENER
(a) Apply vacuum to the choke opener diaphragm.
(b) Check that the fast idle cam is released to the four ..
step. Adjust by bending choke opener lever A.
(c) Disconnect the vacuum hose.
(d) Close the choke valve and set the fast idle lever to
the first step.
(e) Check that there is clearance between the choke
opener lever and fast idle cam.
6. CHECK AND ADJUST IDLE-UP
(a) Apply vacuum to the idle-up diaphragm.
(b) Check the throttle valve opening angle. Adjust by
turning the adjusting screw.
Standard angle: 16.5
0
from horizontal plane
7. CHECK CHOKE BREAKER
(a) Apply vacuum to the choke breaker diaphragm.
(b) Close the choke valve by hand.
(c) Check the choke valve opening angle.
Standard angle: 42 0 from horizontal plane
8. CHECK AIR VALVE AND METERING NEEDLE
(a) Check that the air valve and metering needle move
smoothly together.
(b) While the primary throttle valve angle is idle position,
check the air valve opening angle.
(c) While the primary throttle valve is full opening ang'
check that there is clearance between the connectiny
rod and stopper.