To have a full MOT it needs to be lit ime sure, but you can go for a daytime MOT then you don't need it lit but need a brake light on the bike. That's what my next project racer type's gonna get, daytime MOT ,no lights (except brake light ) no indicators no main light , most small garages/ bike shops are pretty sympathetic towards old time rebuild projects worth havin a natter with a couple before shelling out any cash :-\