Video by ScooterLab.UK via YouTube
Source
We may think to pressure test a freshly built engine but how about performing this quick task before you start stripping the old engine down? It can help diagnose issues and give an early warning of things that may be about to go wrong.
This video is the first in a series of videos where we use this donor engine and build a brand new Pinasco 251 engine. The features will appear on ScooterLab and the full engine build videos will be on our YouTube channel.
https://scooterlab.uk/pinasco-251-vespa-build-part-1-workshop/