2007 Yamaha Apex Factory Service Manual, Page 172Get this manual

2007 Yamaha Apex Factory Service Manual, Page 172

CAMSHAFTS S Place the timing chain onto both camshaft sprockets and then install the camshaft sprockets onto the camshaftsNOTE:
marks in the camshaft caps as shownS While holding the camshafts, temporarily tighten the camshaft sprocket bolts 5Install:
Timing chain tensioner Installation steps: While lightly pressing the timing chain tensioner rod by hand, turn the tensioner
rod fully clockwise with thin screwdriver 1 S With the timing chain tensioner rod turned all the way into the timing chain