Fuel line adapter for carbs

[Streffpilot]

Hi, does anyone out there know the correct thread style and size for the fuel lines going from the fuel pumps to the three carbs on the motor in my signature? I want to run all new lines under the hood, but need to know the thread style and size. Thank you all ahead of time.

 

[carholme]

Re: Fuel line adapter for carbs

If it is the one on your profile page, s/n 3651920, that comes up as:

115 1973 3525441 - 3761034 7010763 note: 1973, not 1972

From here:

MERCURY OUTBOARD MODEL YEAR GUIDE 115 HP - 150 HP -- Mastertech Marine

Parts Listing:

MERC 1150 - Mercury, Mercruiser, Force, etc. Parts Lookup

I don't know the sizes but you will see the fittings here.

You will see in MISCELLANEOUS PARTS/Serial Group Chart, that your s/n is a Group 1, therefore you would use FUEL PUMP AND FUEL LINE ASSEMBLY (SERIAL GROUP #1)

You can google the p/ns, for example:

30174, Elbow, Upper Carburetor Strainer Cover Mercury 1000SS 100hp | eBay

Gerry