Visually inspect the isc valve if necessary.

Throttle body inspection and cleaning
Throttle valve synchronizationEngine top side assembly
Assemble the engine top side in the reverse order of
disassembly. Pay attention to the following points:
Cylinder head
Install the dowel pins and a new cylinder head gasket
(1) to the cylinder.
Caution
use a new gasket to prevent gas leakage.
Place the cylinder head ...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Exhaust system components”
Special tool
...
Throttle cable play inspection and adjustment
Inspect throttle cable play
initially at 1 000 km (600 miles, 2 months) and every
6 000 km (4 000 miles, 12 months) thereafter
Inspect and adjust the throttle cable play “a” as follows:
Throttle cable play “a”
2.0 – 4.0 Mm (0.08 – 0.16 In)
Remove the boot (1).
Loosen the lock-nu ...