Carburetor Overview

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The Datsun 1200 uses a Hitachi carb, model Hitachi DCG-306 (manual choke) or DCH-306 (automatic choke). This is a modern, two-barrel progessive linkage carburetor. It used bore sizes of 26/30 and venturis of 20mm (primary) and 26mm (Secondary). Datsun 1200 GX models used twin Hitachi 38 sidedraft carburetors with a manual choke system.

Links

Hitachi DCx carbs were used on, among others:

• 67-70 Datsun B10
• 71-73 Datsun B110
• 74-78 Datsun B210
• 79-82 Datsun B310
• 73-75 Honda Civic
• 76-79 Mazda (model?)

See Also:

• Fuel System Category Page
• Carburetor Adjustment
• Carburetor Repair
• Carburetor Specifications
• Carburetor Diagnoses Diagnoses and Corrections
• Carburetor Swaps
• Weber 32/36 Carburetor
• Weber DCOE Carburetor

NOTE: The B10 Datsun 1000 used a smaller carb, the Hitachi DCG-208.

ID boss:

DCG-306

DCG is the manual-choke series.

1971 vs 1972

DCH-306

DCH is the Automatic Choke series.

1977 USA

Vacuum Secondary

DCH-306 with vacuum-operated secondary throttle. 1981-1982 USA models.

Late A12

This is the carburetor on 1989-1994 JDM A12 engines.

DCK