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Title: Mikuni 38mm on a 400
Post by: Knute on July 21, 2008, 10:23:26 PM

Hey Guys,

I just wondered what the latest jetting specs are for a 38mm Mikuni on a 400. We're in the process of changing over from the Bing and could use a good baseline.

Thanks!
Kent

Title: Mikuni 38mm on a 400
Post by: Merlin on July 22, 2008, 10:35:21 PM

Hi Kent, I'll take a swipe at his off the top of my head, I hope it gets you going (close).
*Pilot #45 or 50
*Slide 2.0 or 2.5
*Needle jet 166 P6
*Slide needle 6dh3 or 6FJ6
*Air correction 2.5
*Float seat 3.0 3.5 3.8 BIGGER is better on this one!
I hope you are going to use race gas, I based this "guess" on that, if you run pump go with the listed stuff but please be careful.

Hope this works, good luck!

Quote: Thomas Jefferson, We are all born ignorant, some work to remain that way.
Quote:Merlin, "it is impossible to teach those that wish not to be taught".

Title: Mikuni 38mm on a 400
Post by: Knute on July 23, 2008, 10:20:30 PM

Hi Merlin,

Thank you very much for the input. Of course we waited 'til the week of Mid-Ohio to make the swap!

Thanks again,
Kent

Title: Mikuni 38mm on a 400
Post by: Merlin on July 24, 2008, 06:40:07 AM

Kent! I forgot the main jet, 320 long hex should be close.

Good luck at the races.

Quote: Thomas Jefferson, We are all born ignorant, some work to remain that way.
Quote:Merlin, "it is impossible to teach those that wish not to be taught".

Penton Owners Group

General Discussion => Penton Talk => Topic started by: Knute on July 21, 2008, 10:23:26 PM