Where can I find the engine number

[Mongoose69]

Where can I find the engine number on a B4 ? Please explain like I'm 5.

Thanks in advance

[bigBADbenny]

Engine serial number?

“If you are asked your engine's serial number, you can find this number on the machined boss on the left side of the clutch housing.”

Pics: https://www.google.com.au/search?q=wher ... =450&dpr=2

[Mongoose69]

Thanks. It's been a nightmare trying to find it. I had to swap the engine, and I need to update the registration details