Hi and welcome to the forum
The workshop manual is not generally available, however if you send me a PM I can get a copy to you.
There is no fuel tap or anything as such ‘to do’ on the Vertigo’s, you just need to kick it over and assuming it has fuel, it should start.
That said there is a knack to starting them. For me I give it a couple of slow kicks with the throttle at about 75% open. After that I kick it over as normal, usually with just a fraction of throttle.
I also found I needed to change my method of using the kickstart slightly: I stand with my hips quite close to the bars and then kick more towards the back of the bike than downwards, as you normally would. I also aim to try and push through the compression stroke quickly and in one movement, rather than finding compression and then kicking it down through that.
Hope the above helps and enjoy your new bike ?