Any idea where I can get one of these and do they work? I can't seem to get it out with a craftsman spark plug tool.

 

Just do yourself a favor and pull the fuel tank off to get to the plug. It isn't worth the agravation to do it any other way.

There are several different plug sizes, so be sure you are using the right size plug wrench. I know my 400 takes a different size wrench than my 250's.

 

Ebay or one of the motocross wed sights. I like rocky mountain atv web sight. You could get a oem but I would get one with a handel. I bought a 400ex used and it did not have one. I struggled until one of my boys got a 400 new. I use his spark puller now. But I would like to have one with a handel built in.