Have lived with my carbed XR6 150 since it was new in 1997. No problems starting as a matter of fact it has never failed to start. Turn key on push in count to ten with key still pushed in turn to start until it starts. Make sure motor is trimmed level or all the way in before you start. I have had no problems even when temps are below freezing and have frost on the cowl. Love my carbs they don't need a computer to operate less things to break. Fuel injection has one advantage if you travel it automatically adjusts to altitude where carbs have to be re jetted to run properly.
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Who ever said nothing in life is impossible.
Never tried slamming a revolving door.