Toyota TERCEL 1985 Repair Manual page 138

EC-50
Choke Breaker Diaphragm B
Within 1 -5 _
Seconds
Diaphragm B
Disconnect
Disconnect
EMISSION CONTROL SYSTEMS - Auxiliary Systems
INSPECTION OF CB SYSTEM
1.
EC3501
L
Diaphragm A
EC3502
3.
EC3503
IF NO PROBLEM IS FOUND WITH THIS INSPECTION, THE
SYSTEM IS OKAY; OTHERWISE INSPECT EACH PART
INSPECTION OF TVSV
(See page EC-22)
INSPECTION OF JET
CHECK JET BY BLOWING AIR FROM EACH SIDE
INSPECTION OF CB DIAPHRAGMS
CHECK THAT CHOKE LINKAGE MOVES IN ACCORDANCE
WITH APPLIED VACUUM
EC3504
CHECK TVSV WITH COLD ENGINE
(a) Start the engine.
(b) With the coolant temperature below 7°C (45°F), dis-
connect the vacuum hose from choke breaker
diaphragm B and check that the choke linkage does
not move.
(c) Reconnect the vacuum hose to diaphragm B.
CHECK JET AND DIAPHRAGM A
(a) Disconnect the vacuum hose from the choke breaker
diaphragm A and check that the choke linkage
moves.
(b) Reconnect the vacuum hose to diaphragm A and
check that the choke linkage moves within the
specified time after reconnecting the hose.
1 — 5 seconds
CHECK TVSV AND DIAPHRAGM B WITH W A R M
ENGINE
(a) After warming up the engine, disconnect the vacuum
hose from diaphragm B and check that the choke
linkage retums.
(b) Reconnect the vacuum hose to diaphragm B.
Check for stoppage.
If a problem is found, replace the diaphragm.