Started work on my NSU Prima D.
It’s been stripped down and started working on the seized engine.
Managed to free the seized piston, however on removing the pin using the removal tool I managed to crack the piston.
I have seen Lambretta 150 pistons but they don’t look the same however they do state NSU Prima.
I am getting the cylinder rebored and top/bottom cleaned up but just trying to find reasonable piston.
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