Small Engines (Lawn Mowers, etc.): mitsubishi 6hp engine, float bowl, intake valve

Question
QUESTION: Where would I find out how to adjust the carb? the motor runs good for around fifteen minutes fully chocked and when you try to switch to run it shuts off. Any ideas

ANSWER: need to clean the carburetor

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QUESTION: Do I just use spray cleaner or do I need to take it apart?

Answer
I would suggest that you take it apart and clean the jet(s),intake valve,etc.My guess is that there is a lot of gunk in the float bowl that is getting sucked though the main ports clogging them?If you need help once its apart just let me know and I will try to help.Good luck,
Jason