Honda V65 MAGNA 1985 Manual page 159

If the cylinders were not removed, lock the cam
chain tensioner for minimum tension: push the lock
plate down while pulling or prying the tension arm
up; hold the arm up while you insert a pin or wire
through the
lock
holes.
Check that the camshaft marks are still facing UP.
then align the sprocket index lines with the top of
the rear cylinder head. Place the cam chain on the
sprockets.
Slide the sprockets onto the camshaft flanges. and
install the sprocket bolts in the exposed holes.
Check that the sprocket index lines align at
n-3.
Unlock the cam chain tensioner.
CYLINDER HEADIVALVE
WIRE-~·'\./
LOCK PLATE
CAMSHAFT MARKS
INDEX LINES
10-21