If you don't, just make sure you don't do any %26quot;welding%26quot; by drop anything near the starter or alternator by making contact between power and ground.
Do I need to disconnect my battery before changing out my spark plugs?
No just be sure to not turn the ignition over with them disconnected because you can send a spark to something that could be damaged by a voltage spike. Hope I have been helpful.
Do I need to disconnect my battery before changing out my spark plugs?
The battery is fine to be left connected, it can do no harm as the ignition will be turned off and the keys removed just in case. Doing that is quicker than disconnecting the battery and the same result.
No but don't leave the ignition switched on; just in case of HT discharge.
You don't have to but, it will insure that the engine doesn't some how try to start while you're working on it.
No.
