But I can safely say that P150/P180/Avy all these bikes' pilot jet can be used. Atmost maybe their will be slight performance/fuel efficiency losses. The idle adjustment screw can compensate for this. Definately wont cause knocking issues!!
If the issues persists, open up the carb rubber diaphragm part and check for tears.
And it would be helpful if you can describe the way your bike is behaving in details. (At what RPM knocking occurs, knocking on acceleration/on steady throttle etc etc)
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