is it possible to refurbish spark plugs?

they make spark plug cleaners you push the plug into a hole and blast it with a blast of air and sand and it cleans it like new

You can sand blast them. They sell plug cleaners that are basically mini sand blasters. If you are going through plugs because of fouling, then that will serve your purpose. if the plugs are just worn from milage, then its best to replace them as the electrodes wear down and provide an altered spark. I have one that I use for used plugs that are not worn just to reclean for emergency purposes or diagnosis reasons. No harm at all in it. They do come in handy for those uses.

Some 2 cycle engines are picky about their plugs. Especially trying to run at high rpm. Make sure you have the right oil ratio if they are fouling too often.

your only suppost to change them every 30,000 miles you can clean them but i would just recommend buying new ones better brands last longer like ngk spark plugs new spark plug wires would help to because if you dont change your spark plugs when your suppost to your car will start to run bad

You can sandblast them, but the life of them are reduced. You can wire brush them and regap the plugs too. If fouled with gas, put a lighter to them to burn off excess fuel. But it is a lot easier and cheaper to buy new.

good luck.....

emery paper the contacts at the end of the plugs reset the gap and they should be ok.