another carb question

kirmy22

Seaman
Joined
Mar 8, 2010
Messages
73
if there is no adjustment on a 1977 55 hp johnson why is there an adjustment screw sticking out the front of the bottom carb ?
 

EN2

Chief Petty Officer
Joined
Nov 19, 2007
Messages
404
Re: another carb question

If you are referring to the bottom front of the carb bowl, that is a drain plug, also accsess to the high speed orifice.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: another carb question

there is a bolt center top, and center bottom. neither are adjustments. they are covers of the low and high speed jets. both should be tight, with a gasket on them.
 
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