This came off of a late 1976 Suzuki engine. 1976. Should fit a 1975 as both were product code 303. model. This cover has been recently bead blasted. Originally the cover was painted black, I have not repainted it, so you can see it clearly in the pictures.
One of the vertical slits is slightly bent and It has a small dent at the bottom pointed out in one of the pictures. Two mounting holes are 12.8 cm on center The top mounting hole to the center mounting hole is 12,4cm on center.