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Discussion Starter · #1 ·
Whilst working on my old Honda I discovered that the Keihin main jets are exactly the same thread and length as the TK mains.

This may be of interest to any experimenters and tuners, I think you will find they are easier to source in more sizes.

The series is Keihin 99-101-393 and then the hole size.

We just need too find a base line number for the Keihins as the numbers do not compare like for like.

I know Mikunis work but thread is not a perfect match.

Could provide hours of fun for any techies.
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