2004 SR Johnson 2-stroke 40, 50HP Service Repair Manual P/N 5005640, Page 167Get this manual

2004 SR Johnson 2-stroke 40, 50HP Service Repair Manual P/N 5005640, Page 167

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FUEL SYSTEM CARBURETOR MIXTURE ADJUSTMENT
Make reference mark the carbuetor body before you distub the needle adjustment
If the adjustment is too ', the engine will sneeze and backfire00 t