Unplugging the wires won’t do anything, it’s just like not having the key in at all, what you need to do is connect the ground wire and ignition wire. It can vary depending on the sled. Some sleds might have more wires some might have less.
What he was doing was priming the engine. He’s making sure he will have fuel in the lines and the carb bowls so the engine can fire when he turns the key to on.
@@TayG-y9q either way it's unnecessary to pull the cord, if that's the case a couple pulls isn't going to get the fuel pump to push it into the carbs after sitting for a long time. I usually just put a bit of mixed gas down the spark plug hole or if it's a slide carb. unscrew the top and put a dribble of gas in it.