CONNECTING RODS AND PISTONS5-90TIP• Apply engine oil onto the piston pin.• Make sure that the “Y” mark “a” on the connect-ing rod is facing to the left when the punchmark “b” on the piston is pointing up. Refer tothe illustration.• When installing a piston pin clips so that theclip ends are 3 mm (0.12 in) “c” or more fromthe cutout in the piston.• Reinstall each piston into its original cylinder(numbering order starting from the left: #1 to#4).3. Offset:• Piston ring end gaps4. Lubricate:• Piston• Piston rings• Cylinder(with the recommended lubricant)5. Lubricate:• Bolt threads• Nut seats(with the recommended lubricant)6. Lubricate:• Crankshaft pins• Big end bearings• Connecting rod inner surface(with the recommended lubricant)7. Install:• Big end bearings• Connecting rod assembly “1”(into the cylinder and onto the crankshaft pin)• Connecting rod cap(onto the crankshaft pin)TIP• Align the projections on the big end bearingswith the notches in the connecting rods andconnecting rod caps.• Be sure to reinstall each big end bearing in itsoriginal place.• While compressing the piston rings with pistonring compressor “2”, install the connecting rodassembly “1” into the cylinder with the otherhand.• Make sure the “Y” marks “a” on the connectingrods face towards the left side of the crank-shaft.• Make sure the characters “b” on both the con-necting rod and connecting rod cap arealigned.a. Top ringb. 2nd ringc. Upper oil ring raild. Oil ring expandere. Lower oil ring railA. Exhaust side1b3a2444c45˚90˚90˚b,e ca,dARecommended lubricantEngine oilRecommended lubricantMolybdenum disulfide oilRecommended lubricantEngine oilPiston ring compressor90890-05158YM-08037