1976 Evinrude 200 HP Outboards Service Manual, PN 5199, Page 79Get this manual
gRemove the rings from the pistons by prying the ends loose enough to grip them with pliers and then breaking them away from the pistonInstall complete set of new rings on every power head service jobhIf necessary to remove wrist pin, remove wrist pin retaining ring, using needle nose pliersSee Figure 5-38 Figure 5-38Removing Wrist Pin Retaining Ring NOTE One side of piston is marked "L" (loose) on insideSee Figure 5-39When wrist pin is to be removed, "L" side of piston must be up and arbor pressing tool must be applied to loose sideAlways press from loose side to tight side, being careful not to distort pistonSee Figure -40iDrive wrist pin through to free piston from rod
1"L" (loose) side
Figure 5-40Pressing Out Piston Wrist Pin (Use Arbor Press)
CLEANING, INSPECTION, AND REPAIR
CYLINDER BLOCK AND CRANKCASE Check cylinder walls for excessive wear, and check cylinder ports for carbon accumulationCylinder walls wear in various degrees depending on lubrication and conditions under which the motor is operatedMajor portion of wear is in the port area and the area covered by ring travelCheck cylinder for size and wall straightness by using an inside micrometer or dial bore indicatorRefer to Section for specified dimensionsIf wear is greater than .004", rebore block for oversize pistonsPistons and ring sets are availableSee Section 2, Specifications