So, you still have this sprocket ? I have a sprocket on it, but I’m positive it isn’t original. It’s very heavy, solid(no holes), and looks like it came off some sort of machinery. I think someone put it on for larger diameter, so more torque at the wheel. I used to ride it like that, but, whoever drilled the three mounting holes drilled them slightly off center, so I had to keep the chain a little loose. Main problem is it doesn’t allow access the the valve stem. Can’t afford to but any new parts right now, been laid off. Once I know the engine will run good again, then I’ll want a new sprocket, and I also need the bracket that holds the brake band. Already have a brand new band. I’ll keep a watch out, and if you still have it when I get ready, I’ll take it.