2001-2003 Honda TRX500FA Factory Service Manual, Page 109Get this manual
COOLING SYSTEM
SYSTEM TESTING
Remove the screw and radiato cap id fr he front fen er
Rem ove th ra diator cap
COOLANT (HYDROMETER TEST)
Test he coo lant gra vity us ing hydrometerSTANDARD COOLANT CONCENTRATION: 50
look for co nta mina tio and replace the coo la nt if ne e-
Coolant ratio
5 10 15 20 25 30 35 4
10091027 1.035
l O08 1.016
t007 1006