2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 67Get this manual
ENGINE CYLINDER HEAD ASSEMBLY CONT'D 5Dip valve spring and retainer in clean engine oil and install spring with closely spaced coils toward the cylinder head
ENGINE BOTTOM END DISASSEMBLY
Cylinder Removal Follow engine disassembly procedures to remove valve cover, camshaft and rocker arms, and cylinder head
Closely spaced coils toward cylinder head
1Remove cam chain guide at front of cylinder2Remove the two mm cylinder base bolts