Cheers VC, I recognise the first picture, the black engine, it looks to be the same as the on on my 1980 Masport 460.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2011/08/full-5013-2279-full.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2011/08/full-5013-2280-engine_front.jpg)
It's currently waiting for me to find the time to finish it's restoration. I don't think it would have had a cover, as it still has the throttle knob intact, and it has the sticker from Masport directly on the engine cowl.
I love the one with the metal cover, it's quite an interesting machine, What era is it?