2004 Arctic Cat ATVs factory service and repair manual, Page 323Get this manual

2004 Arctic Cat ATVs factory service and repair manual, Page 323

16Remove the nut and washer securing the oil pump drive gear to the crank balancer shaft; then remove the gear and account
due to lubrication-related problem, replace the oil pumpI NOTE: For general servicing, it is advisable to disassemble, clean,
and inspect the oil pumpIf any wear or damage is suspected, replace the oil pump 20Remove the circlip securing the oil pump