Setting Of Choke Plate; Checking The Choke Plate Opening; Checking Position Of Step Cam - Saab V4 Service Manual

2
EN INE
FUEl SYSTEM
Carburetor, FoMoCo
B. Carburetor with
71 TW-JD
72 TF-KGA
72 TF-KEA
USA-70 TW-AA
modulating choke
USA~71 TW-lA
USA-72 TF-KEA
USA-72 TF-KFA
1. Remove the thermostatic
2. of 0,040" thick wire in the inner slot
and hold
to
SETTING OF CHOKE PLATE
3. The lower opening of the choke plate shall now be:
Standard carburetors 0,11
±
0,008" (2,8
±
0,2 mm)
USA carburetors 0,08-0,10" (2,0-2,5 mm). Check the
opening with a drill or similar.
CHECKING THE CHOKE PLATE OPENING
231-9
4. Adjust by bending the thermostatic sp;ing lever ton-
gue.
ADJUSTMENT OF THERMOSTATIC SPRING
LEVER TONGUE
5. Check position of step cam, by inserting a gauge. See
paragraph 3. In this position, the mark on the 3rd
catch of the step cam shall be exactly in front of the
stop dog of the throttle valve lever.
Adjust by bending the link rod.
CHECKING POSITION OF STEP CAM
ADJUSTMENT OF LINK ROD
Nov. 1973