1996 Johnson Evinrude "ED" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 507127, Page 80Get this manual
Carburetor Servicing
ill nent disconnected or removedFuel leakage could contribute to fire or explosionCalibration To accommodate changes in factory specifications, weather conditions, or altitude, carburetor calibration can be adjusted without removing the carburetors
Do not attempt to run engine with any fuel system compo-
The idle mixture is controlled by an adjustable needle The intermediate mixture is controlled by an air bleed orifice The high speed mixture is controlled by fuel orifice Using the engine's model number, refer to current parts catalog and orifice list in Section to determine correct orifice sizeRemoval Push fuel hose off fuel fittingsdon't pullIf pushing won't separate hose and fitting, carefully cut the hose along its side and peel it back to avoid damaging the fittingsAn individual carburetor body can be removed without disturbing the manifold or throttle body