54
GZ130
NOTE: At this point, oil the camshaft bearings, cam
lobes, and the three seating journals on the cylinder.
13. With the cam lobes directed down (toward the piston),
maneuver the camshaft/sprocket assembly through the
chain and towards its seating position; then loop the
chain over the sprocket.
NOTE: Note the position of the alignment marks on
the end of the camshaft. They must be parallel to the
valve cover mating surface. If rotating the camshaft is
necessary for alignment, rotate the sprocket inside
the chain until the alignment pin can be engaged in
the sprocket with the camshaft properly aligned to
the head.
GZ519
14. Seat the cam sprocket onto the camshaft making sure
the alignment pin in the camshaft aligns with the
smallest hole in the sprocket; then place the cam-
shaft/sprocket assembly onto the cylinder ensuring the
following.
GZ190B
A. Piston still at top-dead-center.
B. Camshaft lobes directed down (toward the piston).
C. Camshaft alignment marks parallel to the valve
cover mating surface.
D. Recessed side of the sprocket directed toward the
cam lobes.
E. Camshaft alignment pin and sprocket alignment
hole (smallest) are aligned.
15. Place the tab-washer onto the sprocket making sure it
covers the pin in the alignment hole.
ATV1027
16. Install the first cap screw (threads coated with red
Loctite #271) securing the sprocket and tab-washer to
the camshaft. Tighten only until snug.
GZ195
17. Keeping tension on the opposite cam chain, rotate the
crankshaft until the second cap screw securing the
sprocket to the camshaft can be installed; then install the
cap screw (threads coated with red Loctite #271) and
tighten to 11 ft-lb. Bend the tab to secure the cap screw.
CAUTION
If any of the above factors are not as stated, go back to
step 11 and carefully proceed.
CAUTION
Care must be taken that the tab-washer is installed cor-
rectly to cover the alignment hole on the sprocket. If the
alignment pin falls out, severe engine damage will result.
CAUTION
Failure to keep tension on any loose cam chain may
cause severe engine damage.
