well....you could take a die grinder and cut a little wedge out of the a corner of the whole, then get a bolt in the nut pull on it and tack weld the bolt in where you cut the wedge out, after that unthread the bolt out and run a tap through it to make sure you get any slag or little welds out of there...then you should be fine...grind the weld off if there is too much and hit it with some black paint....
1985 Honda ATC250R drag trike with s/t kit and full drag CR hybrid motor and drag chassis...
1986 Honda ATC250R daily rider fully modded engine, +4 swinger,etc...
1997 Polaris Storm 800 triple, boyesen reeds, dg individual silencers, 240 studs, 123mph on radar...