2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 95Get this manual
FUEL SYSTEM JETS AND FLOAT Damage to Ille pllor screw seat will occurdrhepllor screw IS tig hrened againSt rhe sear
Insta ll new O-ring into the pilot screw rooveInsta ll th pilot screw with the springwas her and new O-ring and return it to its origi nal position as noted during removal
TOOL: Pilot screw wrench (0 type)
NEEDLE JET
07KMA-MN90101 or 07KMA-MS60101
Perform the pilot screw adjustment if new pi lot screw is installed (page 6-22)
MAIN JET