2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 92Get this manual
MAINTENANCE If the leve is low, remove the steer ing cover (page 3-5)Remov the reserve tank cap, and fill the tank up to the "UPPER" level line ith 1:1 mixture of distilled water and antifreeze (coo lant preparat iopage 7-6)
RECOMMENDED ANTIFREEZE: Pro Hon da HP coo lant or an equivalent high quality ethylene glycol ntifreeze co ntai ning ilicatefree co rrosion inhib itors
cause premature wear of water pump seals or blockage of radia tor passagesUsing tap WOller may
Using cootsnt with siticete corrosion inhibitors may
cause engine damageCheck to see if th ere ere any coo lant leaks hen he coo lant level dec reases very rapid lyIf the reserve tank becomes co pletely em ply, the re is possibility of air getting nto the co oling systemBe sure to remove any air rom th cooling system (pag 7-7)