Have you check air filter and its intake if this is clogged or damp it will restrict air flow resulting in black smoke due to more fuel than air induction make sure you remove filter element and check underneath as this is the induction side of filter the top may indicate it is ok cas it looks clean fit a new filter useless to try cleaning because if dirty ? the microscopic holes in element will be clogged even a damp element will restrict air flow recheck all induction air hoses are secure and not split/cracking?
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Have you check air filter and its intake if this is clogged or damp it will restrict air flow resulting in black smoke due to more fuel than air induction make sure you remove filter element and check underneath as this is the induction side of filter the top may indicate it is ok cas it looks clean fit a new filter useless to try cleaning because if dirty ? the microscopic holes in element will be clogged even a damp element will restrict air flow recheck all induction air hoses are secure and not split/cracking?