2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 156Get this manual
CYLINDERPISTON
CYLINDERPISTON INSTALLATION
PISTON RING INSTALLATION
Be careful nor ro damage (he pIS ron and rings
Carefully insta ll the piston rings into the piston ring grooves with th markings facing upNOTE:
Do not confuse th top and second rings To install the oil ringinstall the spacer firstthen instal the side rai lsStagger the piston ring end gaps 1200 degrees apart from each otherStagger the side rai end gaps as shown
20mm (0.8 in )