82 Maxim 750 M/C cover screw holes

Hello, so I think I finally drilled out the screw studs that were left over after the heads snapped when trying to remove the master cylinder cover. As a result of this drilling and this being my first time actually trying to recover threaded holes there are not really many threads left. I have both holes drilled out to where a 1/8 inch drill bit will slide in and out nicely. Was wondering on what size tap and really just where to go from here. Like I said I'm a newbie when it comes to repairing threaded holes.

 

1/8 inch+.125 inch=3.18mm so an m4 tap bottom tap should work.
what you need to do is go to the parts store and buy a tap with drill for exact size match between drill and tap

https://www.imperialsupplies.com/pdf/I_DrillSizeDecimalEquivalent&TapDrillChart.pdf