NOTE
The exhaust camshaft has a 1001 EX mark [A] and the intake camshaft has a 3154 IN mark [B]. Be careful not to mix up these shafts.

#4 Cam Positions [A] Intake Camshaft Sprocket [B] Exhaust Camshaft Sprocket [C]
The intake camshaft sprocket and exhaust camshaft sprocket are identical
Torque - Camshaft Sprocket Bolts: 15 N·m (1.5 kgf·m, 11 ft·lb)

If a new camshaft is to be used, apply a thin coat of molybdenum disulfide grease to the cam surfaces.
NOTICE
The crankshaft may be turned while the camshafts are removed. Always pull the chain taut while turning the crankshaft. This avoids kinking the chain on the lower (crankshaft) sprocket. A kinked chain could damage both the chain and the sprocket.

The timing marks must be aligned with the cylinder head upper surface [B].
EX Mark [C] IN Mark [D] #1 Pin [E] #2 Pin [F] #28 Pin [G] #29 Pin [H]


[B] and upper camshaft chain guide [C].
Torque - Camshaft Cap Bolts (1 ∼ 18): 12 N·m (1.2 kgf·m, 106 in·lb) Upper Camshaft Chain Guide Bolts (19, 20): 12 N·m (1.2 kgf·m, 106 in·lb)

Camshaft Removal
Camshaft, Camshaft Cap Wear InspectionECU Power Supply Inspection
Remove the upper air cleaner housing (see Air Cleaner
Element Replacement in the Periodic Maintenance chapter).
Visually inspect the ECU connectors.
If the connector is clogged with mud or dust, blow it off
with compressed air.
Remove the ECU (see ECU Removal).
Visually inspect the ...
Idle Speed Control Valve Actuator Input Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Disconnect the idle speed control valve actuator connector
and connect a suitable measuring leads [A] between
these connectors as shown in the figure.
Main Harness [B]
Idle Speed Control Valve Actua ...
Coolant Deterioration Inspection
Remove the right lower fairing (see Lower Fairing Removal
in the Frame chapter).
Visually inspect the coolant in the reserve tank [A].
If whitish cotton-like wafts are observed, aluminum parts
in the cooling system are corroded. If the coolant is
brown, iron or steel parts are rusting. I ...