How do you start a stihl ms187 chainsaw?

To start a Stihl MS 187 chainsaw, first ensure the chain brake is engaged. Then, set the ignition switch to the "On" position, pump the primer bulb until fuel is visible, and pull the choke lever to the closed position. Place the chainsaw on the ground, press the throttle trigger, and pull the starter rope until the engine fires. Once it starts, open the choke and allow the engine to warm up before use.