YAMAHA Town Mate resurrection - How to prepare and install battery - first start?

Half way trough to start the engine. The oil change is behind and the second important thing is electricity!! I got a new battery because there was no change to get a spark from the old one and started straight the business!! Those bikes run a 6 Volt battery. It is necessary to prepare - set up the battery before install it. If everything evolve smooth and nice the time is close to try fire step before the first start!!!