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1980 15 hp main jet

P

Paul csy

New member
I just got a 1980 15 hp Johnson not running good compression. Spark on only one cylinder . Opened up the carb the main jet is missing . Parts list is confusing . Can someone tell me the right size jet?
 
Model #15RCSD..... High Speed Jet

High Speed Jet part #322293 - 15hp Sailboat Models Only
(Number in book is proceeded by a # along with a small clear box, indicating.... #Sailboat Models Only... with the small indicating..... box 15hp)

This is from a 1980 OMC parts book and is somewhat confusing. It does not list any other HS jet for the standard 15hp model.... Their is a different listing for the 9.9hp models of course.

This leads one to believe that 322293 HS jet fits both the regular 15hp model and also the sailboat model??
 
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