ok.
I'm not sure what the haynes manual said about it so not sure what it doesn't cover...
You need to knock the bearings out from the opposite side so you'll need a long hard
screwdriver or something similar so that when you look through the wheel you'll be able to get the edge of the blade of the screwdriver on the lip of the bearing. you then need to use a hammer or something to tap the end of the screw driver to drift the bearing out of where it sits. Sit the wheel face down on a couple of pieces of wood so that the wheel isn't touching the ground so the bearing can come out. put a few rags between the wood and the wheel so you don't scratch/damage the wheel.
There is a metal collar between the two bearings and it can be very tight. One of the bearings has further to go before it will come out. Think it's the chain and sprocket side is easiest to do first then turn the wheel over and push the other one out in the same manner as the first.
When putting the new bearings in then they can be very tight feeling. Make sure they go into their seats perfectly square. Use a large socket the same size as the outer race (outer metal part of the new bearing) but small enough to fit into the hole the bearing goes into to make sure you can drift it all the way in. Make sure you're not forcing any other part of the bearing or you can break it. Tap the bearing in using the socket and as I said make sure it's going in perfectly square.
When I did this I smeared a small amount of grease around the outer edge of the bearing to help it slide into its seat.
Sure I've forgotten a few things... take your time over it. look about on youtube, search for motorcycle wheel bearing replacement, sure that'll show up a few usefull videos.
Hope that helps...
Chris