Hi all, I have been researching into parts etc for my zip 50 engine, I found some useful PDFs off a Vespa forum with regards to the ET2 engine, the site also has many other engines so I thought that these might be of use - especially useful if you have just taken something/something has fallen apart and you don't know how it goes back together! http://www.wotmeworry.org.uk/manuals/ I just nabbed the ET2 manual and it seems really useful! Especially as I will just have the engine on its own with no bike attached and no owners manual etc. Hopefully this can be of use to other newbies like me!