Had a genuine GG throttle identical looking back in the "70's maybe "80's, sold it on the bike damn it but someone with Husky knowledge might know the answer to my question. When i bought it we were Husky dealers where i worked but went to fit this throttle to a normal 7/8 handlebar [not painted but normal chrome] & recon the genuine husky bars were undersize by enough for me to see damage happening [like split it] & had to machine just enough out to fit the yamaha bars. recon i could actually feel the diameter difference just handling them. Dreaming? don't think so, actually [sounds rude i know] but got a crank pin same diameter as the yam 7/8 bars, ran it longways on the grinder multiple times & put it in the lathe then slowly worked the Gasser along it till it fitted right, worked good too.