Next, the two gearbox shafts can be fitted into place, making sure the selector forks engage correctly into the grooves on the matching gears. The gearbox bearings all locate onto circlips or dowels in the top crankcase half and I’ve fitted the new clutch pushrod seal. Finally, with everything correctly located and a thin smear of Hylomar applied around the jointing surface, I can lower the crankcase into position and bolt it up, pausing to make sure all the shafts rotate easily before final tightening