Snapper Lawn Mowers NXT Tractor Push Button Start Share | Posted April 10, 2013 in Riding Mowers Posted April 10, 2013 in Riding Mowers URL Embed The revolutionary Snapper NXT push button starting system. With the safety key in place, simply press the start button. The engine immediately starts. The dashboard then springs to life. Never before has so much information been available to the operator!