Inspect exhaust control valve initially at 1 000 km (600 miles, 2 months) and every 12 000 km (7 500 miles, 24 months) thereafter
Inspect exhaust control valve as follows:


Exhaust pipe bolt and muffler bolt inspection
Valve clearance inspection and adjustmentEcm / various sensors
Since each component is a high-precision part, great
care should be taken not to apply any severe impacts
during removal and installation.
Be careful not to touch the electrical terminals of the
electronic parts (ecm, etc.). The static electricity from
your body may damage them. ...
Engine top side disassembly
It is unnecessary to remove the engine assembly from
the frame when servicing the cylinder head cover and
camshafts.
Note
before servicing the engine top side
components (until camshafts removal) with
the engine in place, remove the following
parts:
air cleaner box
...
Special tools and equipment
Special tool
...