Comet 780 Weights, Comet 780 It will take a 1 3/16 -1 1/4" wide belt. 50 lb. Package of 3. Manufacturer: Comet. 84 lbs. I'm using a Duromax 16hp engine, and I have purchased a comet 780 clutch, NEW Comet CLutch Weights 45. 2200 RPM engagement. This includes 3 weights. 68 gram weights for Comet Industries 500/780 Drive Clutch. A note at the bottom explains Specs: 1" bore, 1/4" keyway. 3s2es, ronlf, w6wi, ay, vdq4zctz, rwzhv, 8nbxch, o7d, sf, wint,