2001-2003 Honda TRX500FA Factory Service Manual, Page 57Get this manual
MAI NTENANCE
AIR CLEANER HOUSING DRAIN TUBE
Remove the drain tube from bonom of th air cle aner ho using to empty any depositsInstall the rain tu be securely NOT E: If the veh icle is used in very wet mu ddy condit ion s, more fr equent inspections are required
SPARK PLUG
Remove th seat (page 2-3)
l oo se the ban screw and re move the reso nance chamberDisco nnect the spark plug ca and clean ar ou nd he spa rk plug base ith co pressed air Remo ve the spark plug
This vehicle 's spark plug is equipped indium rype