oh and just for shits:
>It needs a newbattery, how do I take the battery out?
lift the seat up, and then remove the front panel, you'll see the battery there..
>How do I change the oil?
you don't, it's auto-injected.. tank is under the seat.
>How do I change the signals?
srsly? all the hardware, or just the bulbs? they're lightbulbs, you take the cover off and change them.
>and what is the ideal ratio between gas and oil
chappys are oil-injected.. you can remove the oil injector and premix if you really want to, but the oil injection is fairly safe. oil tank for the injector is under the seat, in front of the gas tank.
>Does it have an auto mixer for the gas and oil.
yes it does.. the oiltank is under the seat, in front of the gas tank.