2010 Arctic Cat 150 ATV Service Manual, Page 43Get this manual
4Install the oil pump drive gear, chain, and driven gear as an assembly; then apply red Loctite #271 to the oil pump shaft and secure with oil pump driven gear nutTighten to ft-lb TR183
5Install the washer with the word INSIDE toward the gear; then apply red Loctite #271 to the threads and install the balancer nut (left-hand thread)Tighten to 32 ft-lb