2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 179Get this manual
COOLING SYST EM RADIATOR CAPSYSTEM PRESSURE INSP ECTION Remo ve the rad iator cap {page 7-5)
RADIATOR CAP
Wet the sealing surfaces the capthen inst all the
cap on to tes te rTOOLSCoo ling sy st em pr essure est er
Coo ling yste adaptor
SVTS4AH OTCJ3 3984A
Pressurize th rad iato cap using th testerReplace the radi ator cap if it does not hold pressure, it relief pressu re Is oo hi gh or to low II ust ho ld th speci fi ed pre ssure for at least seco nds
RADIATOR CAP RELIEF PRESSURE: 108137 kPa (1.11,4 kgflcm1620 ps i)
Cn damage lhe
coolmg svsrer
Pressu re est he radia to r, engine and hoses, and chec fo leaks
coroooeots Do
nor evceea 137 kPa