Tapping threads in an Amazon Small engine cylinder head

How i tap my threats in an Amazon Small engine cylinder head.
Amazon Cylinder Head kit
www.amazon.com...
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[@mjsca07]

Informative as always! The lack of threads a defect or it come like that?

[@HowIDoItFaM]

Thank you! Every one I've received has came unthreaded. All the other reviews say the same. For some people that was a big deal breaker, and they returned it back to Yamazon.