Author Topic: Keihin Jets to Drill size  (Read 1080 times)

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Offline rtbmrgl

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Keihin Jets to Drill size
« on: October 27, 2013, 10:18:30 am »
Hello, I've been trying to find the drill size in relation to Keihin jet sizes. I have a plugged #40 slow jet on my '73CB500. Its probably on the forum site but I haven't been able to find.
Is there a chart available?
Also I have been reading and it appears that aftermarket jets for the Keihin my not be the same size as OEM jets.
thanks, Mark
Roseville, Ca

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1973 CB500 back yard find 1243 orig mi,  http://forums.sohc4.net/index.php?topic=124285.0
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Offline scunny

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Re: Keihin Jets to Drill size
« Reply #1 on: October 27, 2013, 12:34:24 pm »
the number is the size #40 is 0.40mm
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Offline rtbmrgl

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Re: Keihin Jets to Drill size
« Reply #2 on: October 27, 2013, 01:26:28 pm »
Thanks,
     I didn't remember what Kiehin used to measure there jet size,
     I think Mikuni used a different measurement, I think it was flow rate instead of mm size.
thanks, Mark
Roseville, Ca

Got Points!

1973 CB500 back yard find 1243 orig mi,  http://forums.sohc4.net/index.php?topic=124285.0
1976 CB750 Restoring,        http://forums.sohc4.net/index.php?topic=132997