Ignition bolts

[jeffcrigler]

Does anybody know the size of the star nut on the underside of the ignition plate of a 2000 tiger

[Mustang]

if it's oem it is a shear bolt that the head snaps off when installed . it's anti theft and there is no exact tool for it .
some have had luck with vice grips or hammering a socket over what remains to get a purchase on it .

[Sin_Tiger]

I don't know how much space there is on Girlies but used to hammer on a number nut and tack weld it in place, the heat also helps.

[metalguru]

A theory that has always worked for me is a small centre punch, gently tap with a 2lb hammer to centre dot on the bolt flange. After a good (quite deep)'dot' is acheived then hold the punch at an angle in a direction to unscrew the bolt and hit the dot slightly harder and repeatedly. If the dot fails simply make another on the opposite side of the flange.

These screws cannot be drilled as they are made of steel near-enough as hard as the drill bit!

Perseverance will slowly turn the screws as they are not that tight. To make the job really easy is to remove the top yoke (tree). Replace with M6 (or maybe M8) stainless with a bit of thread lock if required.