Do i need to spay carbertator cleaner inside when i pull out the plug?

It's generally not necessary to spray carburetor cleaner inside when you pull out the spark plug, but it can help if you're trying to clean the combustion chamber or remove carbon buildup. If you do choose to use carburetor cleaner, make sure to follow the manufacturer's instructions and avoid over-saturating the area. Always allow the cleaner to evaporate before reassembling the parts to prevent damage.