I cross referenced the service manual part numbers with Russell Industries PRB line...
http://www.russellind.com/prbline/xref/jvc.htm
9731201CT Main belt FRM9.6 (Flat belt/medium) inner circumference 9.6 inches
8001602T Counter belt SCY7.0 (square cut .035 X0.035) inner circumference 7 inches
http://www.russellind.com/prbline/xref/jvc.htm
9731201CT Main belt FRM9.6 (Flat belt/medium) inner circumference 9.6 inches
8001602T Counter belt SCY7.0 (square cut .035 X0.035) inner circumference 7 inches