Here are the steps on how to replace the battery in a 2005 Yamaha 350 Raptor:
1. Disconnect the negative battery cable.
2. Disconnect the positive battery cable.
3. Remove the old battery from the battery box.
4. Place the new battery in the battery box.
5. Connect the positive battery cable.
6. Connect the negative battery cable.
It is important to note that the positive battery cable must be connected before the negative battery cable. If the negative battery cable is connected first, it can cause a spark which could damage the electrical system of the ATV.