Why is the Stuka shaking after take-off?

[addman]

This is starting to tick me off. Radiator and oil radiator open, temps are fine no blown engine. No WEP engaged, no flaps up nor down, supercharger set to manual (pulled out). Still the damned thing shakes like a naple leaf in the wind. I tried air starts and guess what, no shaking! Only when I do take-offs with it starts shaking. Read the manual, searched the forum, help!

P.S No it's not the wind because I flew down low from an air start and everything was fine.