How much is the inside diameter of the kickstarter return spring ? The part number is 66-3058 but on E-bay there are two sizes 54 mm and 57 mm. I have one of 54 mm.
I often know I have the parts but finding them is the problem. But I managed to find one. I have a few NOS springs but not as many as I remembered. Here a photo.
The inside is 57 mm while the hight of the coils is 23 mm.