1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 111Get this manual
SYSTEM Remove the air cleaner case front air intake duct by removing the boltsDisconnect the radiator breather tube, and upper and lower ra diator hoses from the radiator
Remove the rad iator mount bracket attaching bolts and remove the radiator from the frame
INSTALLATION
Install the radiator in the reverse order of removalInstall the breather tube, upper and lower radiator hoses securelyFill the cooling system ith the recommended coolant (page 93)