2004 Bombardier Outlander 330/400 Factory Service Manual, Page 148Get this manual
Subsection 09
Section 03 ENGINE (CYLINDER AND HEAD)
Install the oil scraper ring first, then the lower compression ring with the word "N and TOPfacing up, then the upper compression ring with the word "N and TOP" facing upR400motr103A
1Piston 2Feeler gauge
RING END GAP NEW MINIMUM
A31C2NA
Ring End Gap
UPPER COMPRESSION RING LOWER COMPRESSION RING OIL SCRAPER RING
1Upper compression ring 2Lower compression ring 3Oil scraper ring