1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 234Get this manual
ENGINES
Cooling System
Cooling System Specifications
250300 350400 154 (68 C) 50 1740 (79 C)
425 (Magnum)
175 (79 C) 50 190 (88 C) 221 (105 C)
Fan Off Fan On Hot Light On System Capacity Radiator Cap Relief Pressure
210 (99 C) 10 235 (113 C)