Refitting the timing chain
This section described the operations to be carried out on the manifold components.
Ignition advance is determined electronically on the basis of parameters known by the control unit. For
this reason it is not possible to interpret the reference values based on the engine rpm.
The ignition advance value is detectable at any time using the diagnostic tester.
It is possible to check whether the ignition advance determined by the injection system matches the
value actually activated on the engine, by means of the stroboscopic light.
Specific tooling
020460Y Scooter diagnosis and tester
020330Y Stroboscopic light to check timing
Proceed as follows:
- Remove the outside transmission cover as de-
scribed in the automatic transmission chapter.
- Remove the TDC reference inspection cap be-
tween flywheel and crankcase cover. See the fly-
wheel cover chapter.
- By the driving pulley, turn the engine to find the
alignment of the references to identify the TDC.
Engine Nexus 500 euro 3
ENG - 160
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