Its swamp-rat innards shocked even the wizened Clough. The engine-mounting studs were frozen, the iron cylinders and pistons were locked in a galvanic embrace, the bottom end was rusted, the clutch fried and the bearings toast. Scott managed to get the lump pried apart while I phoned, e-mailed and Googled my way across the U.S. looking for bits. N.W. Vintage Cycle Parts had pistons, rings and pins; Speed & Sport stocked a crucial shift-return spring; Champion Motorsports found larger YDS3 carbs; and eBay yielded OE cables. But little old Browns’ Cycles in Paso Robles yielded real unobtanium: NOS crankpins, bearings and rods.