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the way to clean a carb is remove the jets and spray carb cleaner in the passages front wards and backwards. remove the mixture screws and spray cleaner thru. the pilot jets are the most problematic.they have small holes in the sides hold up to a light and look thru them. and do not mix the jets up maybe take photos plural.when you spray cleaner thru the passages watch where it comes out and spray back thru. the three important jets are main pilot and mixture screw.