2004-2005 Honda TRX450R Factory Sevice Manual, Page 108Get this manual
COOLING SYSTEM
SERVICE INFORMATION
GENERAL
Removing the radia to cap while the engine is hot can allow the coolant spray outserio usly scalding you lways let the engine and rad iator cool down before rem ov in the radiator cap
ACAUTION
Radi ator cool ant is tox icKeep it away from eyes and mou th If any coo lant gets in yo ur eyes, ri nse hem it ate and con sult phy sician im media te ly If any coo lant is swa llowed, induce vo mitinggargl and co nsult physician immediately If any coolan get on yo ur skin clothes, rinse ho roug hly it plenty of wa te r
Using co olant with ilica te inhibitors may cause prem atu re wear of water pump seals or blockage of reasstor passageUsing rap water ay cause engine damage Add cool ant to th system at th reser an kDo not rem ove he rad iato cap except to ref ill or dra in th syst emA ll coo ling system service can be done ith he engi ne in he fr ameAvoid spi lling coo lant on pai nted surfacesAft er servi cin the system, check fo leaks ith cooling syste test erRefe to page 1&22 fo coolant em perature ndicator nspectionRefer to page 1& 24 for engine coolant emperat ur sensor inspection