M-SERIES 850CFM MARINE CARBURETOR

BRAND NEW HOLLEY QUICK FUEL M SERIES MARINE CARBURETOR, BLACK, 850 CFM, MECHANICAL SECONDARIES, COMPATIBLE WITH 4150 MODELS

QFT BRINGS ITS ENGINEERING EXPERTISE TO THE MARINE MARKET. THE M-SERIES FEATURE BILLET-STYLE METERING BLOCKS & THROTTLE BODIES FOR MORE PRECISE PERFORMANCE & EXCEPTIONAL STRENGTH.

NOTE: THIS CARBURETOR HAS A SQUARE BORE FLANGE BOLT PATTERN. REPLACES HOLLEY, EDELBROCK, CARTER AFB, AND AUTOLITE STYLE CARBURETORS WITH 5 3/16" X 5 5/8" BOLT PATTERN. SPREADBORE STYLE INTAKE MANIFOLDS NEED AN ADAPTER TO INSTALL THIS CARBURETOR, LIKE THE MR. GASKET #1932.

FEATURES

• EXCLUSIVE BLACK DIAMOND COATING FOR ENHANCED CORROSION PROTECTION & APPEARANCE, COATING PROVIDES A 6 PERCENT REDUCTION IN FUEL TEMP
• ELECTRIC CHOKE - FULLY ADJUSTABLE, ONE WIRE HOOKUP
• J TUBES TO PREVENT SPILLAGE
• PTFE-COATED THROTTLE SHAFTS WITH PTFE BEARING RIBBONS & STAINLESS STEEL PLATES
• BUILT-IN SIGHT GLASS WINDOWS FOR EASY FLOAT ADJUSTMENT
• CHANGEABLE PRIMARY IDLE FEED & POWER VALVE CHANNEL RESTRICTIONS, PLUS CHANGEABLE IDLE AIR & HIGH SPEED BLEEDS
• QUICKLINK SECONDARY ADJUSTMENT FOR FAST & EASY CHANGING OF OPENING RATES

SPECS:

• BARRELS: 4
• BILLET COLOR: DIECAST-NO BILLET
• BOOSTER: DOWN LEG
• CARBURETOR USE: MARINE
• CFM: 850
• CHOKE: ELECTRIC
• CIRCUIT: 2
• FINISH: BLACK
• FUEL: GASOLINE
• FUEL SYSTEM: CARBURETED
• HIGH SPEED AIR BLEED: 28
• IDLE AIR BLEED SIZE: 70
• MARINE ENGINE SIZE: UNIVERSAL
• MARINE USE: YES
• MATERIAL: ALUMINUM
• MODEL: 4150
• PRIMARY MAIN JET: 82
• PRIMARY POWER VALVE: 65
• PRIMARY PUMP NOZZLE SIZE: 37
• PRODUCT TYPE: QUICK FUEL
• SECONDARIES: MECHANICAL
• SECONDARY MAIN JET: 94
• SUPERCHARGED APPLICATION: NO
• THROTTLE BORE: 1-3/4"

YOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLETS FOR THIS CARBURETOR HERE.