POWR Power unit5-33 69M3E11Assembling the piston and cylinderblock1. Assemble the piston 1, connecting rod2, piston pin 3, and new piston pin clips4.NOTE:• Face the embossed “Y” mark a on theconnecting rod in the same direction as the“UP” mark b on the piston.• Always use new piston pin clips, and do notallow the piston pin clip end to align with thepiston pin slot c.2. Install the oil ring 5, second ring 6, andtop ring 7 to the piston with the “N”marks d of the top and second ring fac-ing upward.3. Offset the piston ring end gaps asshown.CAUTION:Do not scratch the piston or break the pis-ton rings.NOTE:After installing the piston rings, check themfor smooth operation.4. Install the crankshaft 8 into the cylinderblock 9.5. Install the piston with the “UP” mark onthe piston crown facing towards the fly-wheel magnet.NOTE:Apply engine oil to the piston and piston ringsbefore installation.S69M5940UPNN567dd#1,#4#2#5#3 45˚ 45˚#1#2#5 #4#3EPiston slider 0: 90890-06843S69M595089S69M5970UP0
