DIMENSIONS

Flange Size: 1"

Throttle Bore: 1 1/16"

Main Venturi: 13/16"

Jet, plug in fange body: .035"

Jet, lower bleed: .040"

Jet, Upper bleed: .035"

Economizer: .040"

ADJUSTMENTS

Idle Adjustment Screw 1/4 - 1 1/4 turns open. For richer mixture, turn screw out. Engine idle 450 +.

High Speed Adjustment Screw 3/4" to 1 1/2 turns open.

Float Setting: 11/64". With throttle body inverted and gasket removed, measure 11/64" between machined surface o fthrottle body and seam of float (both sides). To adjust, bend lip on float lever. Be careful not to put presser on the needle.

High Speed Adjustment: With hand throttle wide open and engine operating 2000 RPM, adjust high speed needle until smoothest engine operation is obtained. This setting will be found between 3/4 to 1 1/2 turns open.

PART BREAKDOWN

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1-147S: Throttle body assembly

1A-48: Flange gasket

2-154: Throttle valve

3-1157S: Throttle shaft and lever assembly

7-205S: Choke valve assembly

11B-79: Rivet plug

11B-194: Bowl drain plug

11B-296: Idle port rivet plug

12-496S: Nozzle assembly

14-500S: Choke shaft and lever assembly

15A-13: High speed needle packing nut

20-22: Nozzle gasket

20-123: Needle & seat gasket

21-164S: Float and lever assembly

24-15: Float lever pin

25-284S: Needle & seat assembly

30A-37: Idle adjustment screw

37-61S: High speed adjusting needle assembly

39-10: Choke and throttle valve attaching screw

47-26: Welsch (clean out) plug

61-84: Idle adjustment screw spring

61-537: Choke lever spring

61-567: Float lever bracket spring

101-160S: Body attaching screw & washer assembly

101-340: Throttle adjusting screw

103-14: Lead shot (late prod)

120-189: Metering jet

121-304: Body gasket

136-131: Air horn, choke, and throttle shaft dust seal retainer

136-181: High speed adjusting screw washer

156-93S: Elbow & Strainer Assembly

163-21: Choke and throttle shaft dust seal

163-62: Air horn seal

163-63: Main metering screw packing