1995-2003 Honda Foreman TRX400FW TRX400 TRX 400 400FW Service Manual, Page 366Get this manual
TROUBLESHOOTING
10Tnt compression U""i! wmprHlion (lIUIJII
Va"'" lIudI OfIen
Warn CYlinder Ind piston rings Llaklng hied (lUkel Improper vltvellming lnoorrect vlllle M.I conlact
INCORRECT- Improper valve adjullmem Worn valve '111
CORRECT
12Remove cylinder head cover Ind In.pect lubficlTlon
VALVE TRAIN LUBRICATED PROPERLY
VA.l.VETRA.lN NOT LUBRICA.TEO PROPERLY
Cleggedoll paSp.glt Clogged 011 1IIIIar 011
13CIeeIr; c.rburetar far cIogoging
NOT CLOGGEO
CLOGGED- -" Carb,lfllor noc ,erviuod Irequently
POOR PERFORMANCE AT LOW AND IDLE SPEEDS