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Author Topic: jetting  (Read 2034 times)

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Offline jerry55

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jetting
« on: May 23, 2015, 09:16:59 am »
 I have a LMT- 80 walbro carb. I would like to know what the main jet size & what would size it would be 12% bigger.
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Offline birdman_express

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Re: jetting
« Reply #1 on: May 23, 2015, 12:19:32 pm »
Only you can do that with any accuracy. Poke drill bits in there, til
you get the one that fits, and add 12% to that.
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Offline PJG56

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Re: jetting
« Reply #2 on: May 23, 2015, 06:45:35 pm »
A jet is an orifice, which is calculated in square inches , so if you multiply your diameter by 6% you will gain 12% area (square inches) which is what your looking for.
Multiplying jet diameter by 12% will net you 24% larger square inches more  than what you started with
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Offline DoNoHo

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Re: jetting
« Reply #3 on: May 27, 2015, 03:04:43 pm »
Quote from: PJG56 on May 23, 2015, 06:45:35 pm
So if you multiply your diameter by 6% you will gain 12% area (square inches) which is what your looking for.

What did he say?
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