1986 Johnson 175

Wayne65

Cadet
Thread starter
Joined
Jun 15, 2020
Messages
27
Just a quick question. I am in the middle of a rebuild and boring 20 over on the cylinders. Do I need to worry about re-jetting the carbs?
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,938
On this model yes!!! Its the big bore and sleeves are already thin stock..jump at least .002 bigger
 

Wayne65

Cadet
Thread starter
Joined
Jun 15, 2020
Messages
27
Thank you for the reply. Do you have any idea where to buy them from? I have been looking and can’t seem to find any but stock.
 

racerone

Honorary Supreme Mariner
Joined
Dec 28, 2013
Messages
40,028
320661 is a 61C----You would want a 63C and that part # is 321559
 
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