well, heres the thing. its weird, it doesnt start by itself at all. but I hooked my truck's battery to it, and it starts up and stays on til i turn it off. but the engine doesnt start back up when i turn it off. I let the battery charge cause somehow, I let my Father convince me that was the issue.

I tried to take the spark plug out to see if it needed to be replaced

I cant seem to take it out, its reallly deep. a special tool to take it out maybe?

and I got some oil inside the chamber of the plug, I pushed the wire all the way down but it doesnt stay put tight like it used to.

Im guessing i need to change both the spark plugs and the wires?

Also, What do i need to stop all the oil leakage on top of my motor(under the cover)

I want to thank you ahead of time for trying to help