2005 Polaris Sportsman 400/500 Service Manual, Page 229Get this manual
TRANSMISSION 8Once the gear backlash is found, to install the snorkel lock screw, you may have to rotate the snorkel tube clockwise or counterclockwise slightlyThis will allow the snorkel lock screw to thread itself into one of the slots of the snorkel tube (See illustration below) to secure the snorkel tubeScrew Fits in Slots of Snorkel Tube 10Assemble the input shaft assembly if previously disassembledABall Bearing BInput Shaft CSilent Chain Input Shaft Assembly A
11Assemble the reverse previously disassembled