2007 Yamaha Apex Factory Service Manual, Page 215Get this manual

2007 Yamaha Apex Factory Service Manual, Page 215

CRANKCASE INSTALLATION 1Install: Crankshaft journal bearing (into the upper crankcase) NOTE: Align the projections on the
rail NOTE: Be sure to install the piston rings so that the manufacturer's marks or numbers face up4Install: Piston (onto
the respective connecting rodPiston pin Piston pin clip New NOTE: Apply engine oil onto the piston pinS Make sure that the
"Y" mark on the connecting rod faces left when the arrow mark on the piston is pointing upRefer to the illustrationS Reinstall