- Turn the crankshaft counterclockwise approx. 1-1/3 turns (486°) with the box wrench and align "F I T" line А on the crankshaft with the index marks В of the upper crankcase hole while keeping the camshaft drive chain pulled upward.
Caution: Pull the cam chains upward, or the chain will be caught between crankcase and cam drive sprocket.
Caution: To adjust the camshaft timing correctly, be sure to align "F I T" line А with the index marks В and hold this position when installing the camshafts.
- The camshafts are identified by the embossed letters.
- Before replacing the camshafts on cylinder head, apply MOLYBDENUM OIL SOLUTION to their journals and cam faces.
- Apply a MOLYBDENUM OIL SOLUTION to the camshaft journal holders.
Molybdenum oil solution
Note: Before installing the camshaft, check that the tappets are installed correctly.
- Pull the cam chain lightly.
- The exhaust camshaft sprocket has an arrow marked "1" С. Turn the exhaust camshaft so that the arrow is aligned with the gasket surface of the cylinder head.
- Engage the cam chain with the exhaust camshaft sprocket.
- Starting from the roller pin that is directly above the arrow marked "2" D, count out 18 roller pins (from the exhaust camshaft side going towards the intake camshaft side).
- Engage the 18th roller pin E on the cam chain with the arrow marked "3" on the intake sprocket.
Note: The cam chain should now be on all three sprockets. Be careful not to move the crankshaft until the camshaft journal holders and cam chain tension adjuster are secured.
- Install the dowel pins.
- Install the camshaft journal holders, intake and exhaust 1, and cam chain guide No. 3 2.
- Have the camshaft journal holders seated evenly by tightening the camshaft journal holder bolts lightly, in the ascending order of numbers.
Note:
- Damage to head or camshaft journal holder thrust surfaces may result if the camshaft journal holders are not drawn down evenly.
- Each camshaft journal holder is identified with a cast-on letter F (IN. & EX.).
- The ascending order of numbers are indicated on the camshaft journal holder.
- Tighten the camshaft journal holder bolts in ascending order of numbers to the specified torque.
Camshaft journal holder bolt:
- 11 N·m (1.1 kgf·m, 8.0 lb-ft)
Caution:
- The camshaft journal holder bolts are made of a special material and much superior in strength, compared with other types of high strength bolts.
- Take special care not to use other types of bolts.