1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 131Get this manual
ENGINE ASSEMBLY AND ADJUSTMENT 4Install: -Shift fork -Shift fork -Shift fork -Shift cam "C" ilL" (2) "R" assembly
-Mesh the shift fork "L" with the 6th wheel gear and "R" with the 5th wheel gear on the drive axle-Mesh the shift fork "C" with the 3rd 4th pinion gear on the main axle-Install the shift forks with the embossed letters should face upward