2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 269Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 269

Installing Valves PISTON ASSEMBLY NOTE: Whenever piston, rings, or pin are out of tolerance, they must be replaced 1Apply
install the ends of the springs with the closest coils toward the headAN135 NOTE: If scuffing or seizure marks are too deep
to correct with the sandpaper, replace the pistonTowards 4Inspect the perimeter of each piston for signs of excessive "blowby
Excessive "blowby" indicates worn piston rings or an out-of-round cylinderRemoving Piston Rings ATV-1011 1Starting with the
top ring, slide one end of the ring out of the ring-groove 4Place spring retainer over the valve springs; then using the
valve spring compressor, compress the valve springs and install the valve cotters 2Remove each ring by working it toward
the dome of the piston while rotating it out of the groove NOTE: If the existing rings will not be replaced with new ones,