Welcome!
From what I found in searched threads... your Wildfire is a "GY2 standard variant china bike. Honda based engine and drive system." Probably very similar to my Kinroad XT200GY (except probably w/o the couter-bal engine).
Oil... RotellaT 15w-40 "diesel" oil. Works great!
Spark plug... NGK DR8EA
Spark plug wire goes from plug up to coil mounted under the gas tank on the right side.
Battery: I bought one of these...(STX7A-BS Powersports Battery - Replaces: YTX7A-BS, GTX7A-BS, PTX7A-BS, UTX7A) on fleabay... works great
Battery Holder: is under left rear plastic cover... black box bolted to the frame. Can see it peaking out in pics in my thread.
Check out my Kinroad link in my signature... to see my bike... with pics.
And here are some threads to read about the Wildfire:
http://www.chinariders.net/showthread.php?t=8227
http://www.chinariders.net/showthread.php?t=8829
http://www.mychinamoto.com/forums/sh...ildfire-Moters
Cheers!