1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Mikuni 44PHH Jettings "straight from the horses mouth"

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Old Oct 8, 2015 | 09:06 AM
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TX Mikuni 44PHH Jettings "straight from the horses mouth"

I wasn't sure if this was already out there but I'm certain this is useful information:

Name:  12Astock-Mikuni44jetting_zpsogcve5yt.png
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Data I've had for a bit from an old Mikuni catalog. This is for a stock 12A mind you.

I've included the jettings for Toyota's 2/3TC motor to illustrate the stark difference of air/fuel consumption between just a stock 12A rotary and say a 1.6/1.8 4 cyl, reciprocating motor using the same carburetor.

No, Mikuni does not include a jetting kit for the 12A employing their 40PHH carb. If you're wondering why then you'll have to read between the lines for the answer .

It all the more shows how the rotary is "taxed" incorrectly when classifying it's displacement with traditional reciprocating plants.


Enjoy!
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