1965 Evinrude SportFour Heavy Duty 60 HP Outboards Service Manual, 4204, Page 22Get this manual
LEAF VALVES aThe importance of keeping the leaves in these valves free from distortion cannot be over-emphasizedIf any leaf or leaf stop shows any indication of distortion or damage, replace leaf block assemblybThe leaf is so designed that it maintains constant contact with the leaf block, and will spring away from the block when predetermined pressure is exerted against itLeaf travel away from the block is limited by the leaf stopWhen pressure is removed, the inherent spring action of the segments returns and holds them against the blockAttach the leaf segments and leaf stop to the leaf blocks, then examine each leaf carefullyEach leaf must lie flat against the block with no edges turned up or away from the blockcAttach the four leaf block assemblies to the leaf plate base, using new gasketTighten screws to specified torque to avoid distortion of the leaf valvesFigure 3-26Throttle Cam Adjustment bPosition throttle cam so that synchronizing mark falls in line with the center of the cam follower rollercLoosen adjusting screw and move throttle arm to its limit so that throttle valves are closedMake sure that cam follower roller is contacting cam and tighten screwdReplace the carburetor synchronizing rod and check synchronization of carburetor and distributor linkageSYNCHRONIZING CARBURETOR AND DISTRIBUTOR LINKAGE To assure proper spark advance at all throttle settings, carburetor and distributor must be synchronized after distributor linkage has been reassembledFollow the instructions given in Section 4, "Synchronizing Carburetor and Distributor Linkage