Adjustment and Installation

machine surface, use longnosed pliers and bend the

lever close to the float body.

position and turn the throttle stop screw (54) in until it just

(m) Insert the venturi (19) in the fuel

contacts the stop pin, then turn the screw in 1

bowl bore, with the small opening down. The flat side of

additional turns as a preliminary adjustment of the idle

the venturi must be toward the well vent jet.

speed.

f. Adjustment and Installation. Refer to TM

(3) Assemble carburetor bodies as

follows: (a) Place a new gasket on the throttle

10-3930-618-20.

body.

(b) Place the fuel bowl on the throttle

body, install the four capscrews (15) and tighten them

evenly and firmly.

Key to figure 3-7

1 Lever and shaft assembly

30 Bowl

2 Cotter pin

31 Washer

3 Retainer

32 Discharge jet

4 Spring

33 Plug

5 Clamp lever

34 Washer

6 Screw

35 Drain plug

7 Spacer

36 Plug

8 Seal retainer

37 Plug

9 Shaft seal

38 Choke plate

10 Bearing

39 Screw

11 Body

40 Packing washer

12 Spring

41 Retainer

13 Needle

42 Well vent jet

14 Plug

43 Clip

15 Screw

44 Idle jet

16 Washer

45 Bearing

17 Valve and seat

46 Shaft seal

18 Gasket

47 Seal retainer

19 Venturi

48 Throttle shaft

20 Float

49 Bushing

21 Axle

50 Screw

22 Nut

51 Throttle lever

23 Screw

52 Retainer

24 Choke shaft

53 Cotter pin

25 Screw

54 Throttle stop screw

26 Screw

55 Pin

27 Choke bracket

56 Throttle plate

28 Main jet

57 Screw

29 Washer

58 Gasket

3-10