91 mercury 75hp wont start with out choke ?

steve lee

Cadet
Joined
Apr 20, 2009
Messages
19
when its cold wont start with out choking it ?

after that starts right up with out choke

is that normal ??
 

hkeiner

Lieutenant Junior Grade
Joined
Oct 17, 2006
Messages
1,055
Re: 91 mercury 75hp wont start with out choke ?

Yes, that is what the choke is for. When the motor is cold, it needs a richer mixture to start. When the motor is warmed up, in generally does not need the richer mixture and thus no choke needed.
 

saumon

Lieutenant
Joined
Aug 2, 2004
Messages
1,452
Re: 91 mercury 75hp wont start with out choke ?

BTW, on this engine there is not a "real" choke. It's called an enrichner and, when actuated, it draw the fuel/oil mix from the top carb bowl directly to the crankcase.
 
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