Mercury 305 CID - Mercarb 2 BBL Carburetor; Torque Specifications; Tools; Specifications

MERCARB 2 BARREL CARBURETOR - 5B-190-823225--1 1096
MerCarb 2 BBL Carburetor
00000
Units of Measurements
In. (mm)
Torque Specifications
DESCRIPTION LB. FT. N·m
Carburetor To Manifold 20 27
Fuel Line to Carburetor 18 24
Fuel Inlet Filter Nut 18 24
Tools
DESCRIPTION PART NUMBER
Universal Carburetor Gauge 91-36392
Boroughs Special Tool and Equipment Inc.
2429 N. Burdick Street
Kalamazoo, MI 49007
(616) 345-5163
Float Gram Scale BT 8128 B
Specifications
Units of Measurements
In. (mm)
ENGINE
MODEL
5.0L 5.7L
Carburetor
Type
MerCarb 35mm MerCarb 43mm
Carburetor Number 1389-9670 3310-806082 3310-807312
Float Level 9/16 (14) Note 1
Float Drop 1-3/32 (27) Note1
Pump Rod (Location) Middle Hole Of Pump Arm
Choke Setting
2 Marks Right
Of Index Mark
(Lean)
Choke Unloader 5/64 [.080] (2)
Idle Mixture Screw 1-1/4 Turns Out
Float Weight
9 Grams
Maximum
Main Jet Size 1.65 mm
Power Valve Size 0.74 mm 0.90 mm
Venturi Cluster
I.D. Number
407 463 468
Accelerator Pump
Discharge Hole Size
0.035 (0.889) 0.039 (0.99) 0.039 (0.99)
Note 1: Measurement taken from gasket