Dave, we used to repair this by making a hollow cutter to remove the metal between the easy -out and the casting, then Helicoil if required, not an economic proposition on a bike but a whole lot of sense on an expensive engine casting. Too big an Easy -out and the nasty stuff hit the fan for the poor sod who tried it. Don't even ask what happened if the cutter broke!!!Have you ever successfully managed to get a small bolt out with an Easyout?
Everybody I know that tried, including myself (stupidly, several times), broke it in the bolt, which rendered the item unrepairable.