SkwerI
Treehouser
Your dealer has rim sprockets. There are 2 rim sizes (for large or small saws) and they come in all chain sizes with different numbers of drive pins. They are held in place with an E clip (don't lose it!). You can pull it off with a small flat screwdriver and put it back on with needle nose pliers. Ask your dealer for a large spline, 3/8ths pitch 8 pin rim sprocket.
Here's a picture of a 7 pin, I don't have an 8 pin in the shop. Supplies are all gone since selling the business last year.
Here's a picture of a 7 pin, I don't have an 8 pin in the shop. Supplies are all gone since selling the business last year.