Another bit of related advice....

On the 2 bikes I've ridden (Suzuki and Honda - the Suzuki having the better gearbox), you may find changing down the bike won't engage gear. Especially at lights (going into first). The best solution I've found is to maintain pressure on the gear leaver whilst changing gear and slowly release the clutch till you hear the clunk as the next gear down engages, then pull the clutch back in. This can also work for a tricky neutral selection.