Reply To: What’s this hole for? – 1965 40 HP Jounson

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October 27, 2025 at 10:13 pm #301001
Saltymotor

    That’s the air intake for the hot air choke.  Air enters on the bottom and exits on the top into the choke assembly.  There is a small amount of air drawn through the choke assembly into the carb.  At least that’s what it is on my 67 40hp.

     

    Steve

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    David Stanton