- Turn the crankshaft counterclockwise with the box wrench and align "F I T" line (А) on the generator rotor with the index mark (В) of the valve timing inspection 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 mark (В) and hold this position when installing the cam drive idle gears/sprockets, front and rear.
- Apply molybdenum oil solution to the cam drive idle gear/sprocket bearing, its shaft (1), and thrust washer (2).
Molybdenum oil
Note:
- The thickness of thrust washer (2) must be selected for each cylinder head. THRUST WASHER SELECTION 3-44
- Paint the engraved line (С) on the cam drive idle gear/sprocket.
- Install the cam drive idle gear/sprocket onto the front cylinder head and engage the cam chain on it.
- Align the engraved line (С) on the cam drive idle gear/sprocket with the embossed line (D) on the cylinder head.
- Install the cam drive idle gear/sprocket shaft (1), the copper washer (3) and the thrust washer (2).
- Check and correct the positions of the "F I T" line on the generator rotor and cam drive idle gear/sprocket (1).
Caution: When checking the positions, remove the cam chain slack at the cam chain guide (2) side by holding the cam drive idle gear/sprocket by hand.
Note: Due to special valve train mechanism, aligning of the three elements; the engraved line (А), embossed line (В) and the gear tooth root on the cam drive idle gear/sprocket; can occur once every other rotation of crankshaft.
Caution: If the engraved line (А) does not align the embossed line (В), turn the crankshaft 360° (1 turn) to bring the "F I T" line on the generator rotor to the index mark of the valve timing inspection hole again and reinstall the cam drive idle gear/sprocket to the correct position as shown.
Caution: Pull the cam chains upward, or the chain will be caught between crankcase and cam drive sprocket when turning the crankshaft.
Note: When checking the cam drive idle gear/sprocket (1) position at its gear tooth, top or root, bring the eye level as shown in right illustration.
- Tighten the cam drive idle gear/sprocket shaft to the specified torque.
Cam drive idle gear/sprocket shaft: 40 Nm (4.0 kgf·m, 29.0 lb·ft)