Fast Idle - Toyota 5R 1969 Repair Manual

F ig . 5-49 Stopper L e v e r
Adjustment

Fast Idle

Positioning the choke valve at fully-
closed position,
adjusting sc re w
clearance between the primary throttle
valve (1) and the b ore
mm (0 .0 2 2 ") on
using a w ire gauge which is furnished
in the Carburetor Adjust Kit 09240-
44010, and on the 3 R - B , 3 R - C model
engines, this
(0 .040" ) with the w ir e gauge furnish­
ed in the C arbu retor Adjust Kit 09240-
60030 o r a suitable
A t this time, the throttle valve will
be opened at 10
12 on 3 R - B , 3 R - C model from the
fully-opened position.
F i g . 5-50 Fast Idle
Adjustment
U nloader
Hold the throttle valve at fully -opened
position, and install the
G1742
adjust the fast idle
(2 ) to obtain the
to be 0.55
5R model engine
should be 1.0
w ir e gauge.
on 5R model and
B0360
50° A ngle
F U E L S Y S T E M
Gauge onto the choke v a l v e .
Adjust the opening angle of the choke
valve
20 from the closed position
valve
angle) by
fo llo w e r (2 ) o r the choke
(3 ) .
F i g . 5-51
Automatic Choke
T h e automatic
mm
justed to supply adequate fuel and air
mixture fo r engine starting in a c c o r d ­
ance with the climatic condition.
Th e variation
on the thermostat ca se
4 °C (7 . 2 ° F ) .
T o adjust the fuel and air mixture,
turn the coil housing counterclockwise
to richen
coil housing clockw ise to lean the mix­
ture .
F ig . 5-52
- Carburetor
(1 ) so that it will
is at 50 before fully-opened
bending the fast idle cam
Unloader
Adjustment
choke should be ad­
of the one graduation
the mixture, and turn the
Automatic Choke
Adjustment
5-23
open at
(choke
shaft lip
G1367
is equal to
Mark
B0366