1997-2004 Honda Fourtrax Recon TRX250TE/TM Service Manual, Page 58Get this manual
MAINTENANCE Turn the crankshaft counterc lockwise using the recoi starter knob, and align the "T" mark on the flywheel with the index mark on the rear crankcase "T" MARK RECOIL STARTER KNOB
coverMake sure the piston is at TDC on the compression strokeIf notrotate the crankshaft 360 (1 full turn) and align the ''T'' mark with the index mark
INDEX MARK
Inspect the intake and exhaust alve clearances by inserting feeler gauge between the adjusting