1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 25Get this manual
MAINTENANCE
To avoid scalding, never remove the radiator cap when the engine is hotThe coolant is under pressureIf the r.eserve tank is empty, remove the front fender (page 14
2) Remove the radiator cap and fill the radiator with recommended coolant (page 9-1up to the filler neckRun the engine or minutes to allow air to escape
Fill the radiator with coolant and install the capFill the reserve tank to the" F" level line and install the cap
COOLI NG SYSTEM
RADIATOR HOSE
Remove the seatlrear fender and front fender (section 14)Inspect the radiator hoses for cracks and deteriorationRe place if necessaryCheck the ightness of th hose bands and radiator mounting