If you have ever replaced a dynamo with an alternator and run a stock carburetor you will know what this is for .
If your carb is a dynamo version when fitting an alternator this plate would foul on either the Alternator itself or the stand it fits on .
Some people just cut a chunk out of the pedestal or the Alternator so it clears , or even bend this plate to avoid rubbing/sticking .
But bending the plate will mess up the settings on the accelerator pump on the carb .
If you just replace the dynamo plate with this one nothing else needs altering or bending .
The 2 pieces are stainless steel , kit comes with new stainless mounting screw and nyloc nut .