1991 40 hp carb hose - what for

MudLake

Seaman
Joined
Nov 18, 2009
Messages
65
My 1991 40 hp has dual carbs. There is a hose which runs from the top of one carb to the the top of the other carb. Is this hose there for any good reason? Like equalizing the pressure on the negative side to the throttle plates of each carb. This question is more for the theory guys.

cheers
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 1991 40 hp carb hose - what for

it is the fuel line for the primer system. instead of a choke you have a primer. it squirts fuel directly into the intake when you push the key in. for cold starts.
 

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