Actually, 2-strokes have the worlds longest "delivery pipes" commonly known as the engine's crankcase. When that crankcase gets loaded up with raw fuel from excessive choking, it can take five minutes of flipping the prop with the fuel line removed and having the engine run for short bursts before it finally cleans out and runs for several seconds with only the fuel that's in the crankcase. No wonder electric starters are popular.
You do the same thing with a loaded up four stroke, you flip it a couple of times and it runs for a short burst and guess what! It is now cleaned out and actually needs to be reprimed. Four stroke engines pump the excessive fuel through so fast that they clean out almost instantly.

Hand starting four strokes is not only easy but quite safe if you use the right technique. First of all, forget completely about flipping the engine through its compression stroke. That results in violent kickbacks that can really injure you or break chicken sticks. First, you want to prime the engine and get it really wet inside the cylinder. If you turn the prop by hand slowly with a firm grip on the blade, you should feel a "bump" almost as soon as the compression starts. That's what you want, good and wet. Now, close the throttle to a normal or maybe just a slightly fast idle position, light the glow plug, and then grab the spinner, not the prop, and spin the engine backwards. As the compression starts, the mixture will fire, reverse the engine and continue to idle forwards, usually on the first try. Remember, the idea is not to spin it backwards through the compression stroke but to throw the prop backwards into the compression. Your fingers should be off of the spinner before the reverse compression stroke even begins. Pure momentum against the compression stroke is what starts the engine. If using a chicken stick, position the prop so the chicken stick is off of the prop before the compression stroke begins and then give it a gentle slap backwards............VOILA.....a running engine.