2001-2003 Honda TRX500FA Factory Service Manual, Page 76Get this manual
LUBRICATION SYSTEM
OIL COOLER
INSPECTION
Remove he radiator grill plate (page 3- 12)Check th oil cooler pipe joints and seams for leaksCheck th oil cooler air passag for clogging or da m8g9
Str aighten bent fins with smalllat lade screwdriver and rem ove insects, ud or ot he obst ruct io ns wi com presse ai or low pressur wa ter