2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 115Get this manual
FUEL SYSTEM
SERVICE INFORMATION
GENERAL
Work in well ventilated areaSmoking or allowing flames or sparks in the work area or where gasoline is stored can cause fire or explosion Bending or twisting the control cable will impair smooth operation and could cause the cable to stick or bind, resulting in loss of vehicle control Before removing the carburetor, place an approved fuel container under the drain hose, loosen the drain screw and drain the carburetor After removing the carburetor, cover the intake port of the cylinder head with shop towel to prevent any foreign material from dropping into the engine When disassembling the fuel system parts, note the location of the O-ringsReplace them with new ones on reassembly If the throttle cable was disconnected, perform the initial setting (page 24-6) after all carburetor adjustments have been completed If the vehicle is to be stored for more than one month, drain the float chamberFuel left in the float chamber may cause clogged jets, resulting in hard starting or poor drive-ability See page 22-11 for carburetor heater inspection See page 24-40 for throttle position sensor inspection and replacement