The trans was recondition by another MC shop 20 years ago and the bike was not used until recently. When put into first on the wheels the bike jams into first gear and just won't shift. If you start is second all is fine throughout the rest of the gears. If on the center stand the trans shifts fine throughout the gears including first. Checked the primary chain, main chain and have the box completely apart twice now and can find nothing wrong. New bushes, bearings and checked the main and lay shaft...they are straight. The only thing is the inside cover appears to be from a N15 as it has a vin # stamped onto it that the Commando did not. Inner cover fits easily but maybe this is cause enough of an alignment issue when the box is under load. Have had three local Norton guys helping and still no joy ! Robin