It's just like fixing a bicycle flat tire
, but MUCH BIGGER.
For instance - contrast these "tire irons" with the little plastic things you use to pry the tire off a bike rim.
Some newer/larger motorcycles don't have innertubes. Fixing one of those is more like fixing a flat in a tubeless automobile tire. Just keep in mind you CAN put an innertube in any tire, even a "tubeless" one.