Briggs and Stratton running very rich


Old 05-26-06, 10:31 AM
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Unhappy Briggs and Stratton running very rich

Good Day everyone,
i have John Deere SST18 with a Briggs and Stratton Vanguard v-twin 18 hp engine. problem is that it is running very rich. i have cleaned and replaced airfilter, check the vent hose and choke and replaced the carb with a new one. nothing helped.
it is 3 years old and has 80 hours. it has alway puffed black smoke when the blades were engaged but now it does it all the time and very heavy. i am very baffled about this. could it be a valve adjustment or possible elelctronic control issue? Any ideas would be great. thanks!!
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Old 05-26-06, 10:54 PM
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Have you checked the choke operation? Make sure it is completely open when the engine is running.
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