2003 Honda ATV TRX650FA Rincon Factory Service Manual, Page 73Get this manual
MAINT ENANCE
RADIATOR COOLANT
Check he co ol ant lev el of he res erve tank ith th eng ine ru nni ng at no rmal perat ing em peratureTh level sho ul be between the UPPER" and -l OWEW level ines wit he ve hicle up right on lev el surface
If the level is low, re move he steering cover (p ag e
251 and reserv ta nk capand fill th tank up to the level line with 1:1 mixture of distilled water and antifreeze (co lant preparati n: page 6-6 )RECOMMENDED ANTIFREEZE: Pro Honda HP coola nt or an equivalen hi gh qu al ity et hyle ne lycol ant if reeze co nt aining silicat efr ee co rro sion in hibitor s