Johnson Evinrude Outboard Motors 1956-1970 1.5-40hp repair manual., Page 113Get this manual
CHOKE SYSTEM 4-7 CHOKE SYSTEM SERVICE FIRST THESE WORDS JohnsonEvinrude carburetors may be identified by the type of choke system usedOne has manual choke; the second, heat and electr ic combination choke; and the third has water chokeDetailed instructions will be given in this section for removal of the three different types of choke systemsThe following section provides procedures for rebuilding the carburetorsThe next section covers installation of the choke systems to the carburetorThe larger engines covered in this manual (25 hp thru ito hp) are equipped with electric starter motors and generator systemIn most cases, these items must be moved out of the way to provide clearance for the carburetorHOWEVER, they need only be moved and not removedTherefore, only attaching hardware need be removed in order to move the item for carburetor clearanceElectrical connections may be left intact'When working on an engine equipped with combination heat electrical choke system, the heat tube between the exhaust manifold and the carburetor must be re moved BEFORE the starter motor can be movedEACH carburetor has only one choke system installedPerform one of the following three procedures depending on the choke system installed on the carburetor of the engine being servicedHEA ELECTRIC CHOKEREMOVAL