Hi,
Quote- ''what does this mean, i have one to get out''
Shimmy- they use an electrode to cause
'spark erosion'.
Broken nipple nearly always comes out clean,
they then just run a 'tap' down the threads to
make sure all is good.
The art is to spark out the top but not to go to
deep so as to leave the 'seat' good.
Good Motorcycle Shops will have done it many times.
Regards,
The Gorilla.
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