Replace the spark plug, oil filter, and fuel filter where applicable. Replace the fuel hose if necessary. Change the engine oil. Check and replaced broken sheer pins/bolts.Inflate tires. Set and adjust the skids, and scraper bar. Check belts and pulleys. Adjust the cables, and pulleys. Grease the augers where applicable. Start and run the machine, set engine and drive speed. Test output power. $55 is your expected charge.