Re: Jets size

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Posted by JMOR on June 25, 2020 at 00:09:02 [URL] [DELETE] :

In Reply to: Jets size posted by Pete Landon on June 24, 2020 at 20:06:22:

               American Wire Gauge #20AWG is 0.032 inch, but 0.73mm is 0.287 inch (0.032"=0.81mm). I caution that there are at least another half dozen wire gauge standards in the world, so ????
Your numbers look like "happy numbers to me. I like the way they match my own notions/numbers I have come to accept. Real close match I say. Using pin gauges and calipers, there is probably always some doubt in the 3rd decimal place.
Source Idle Econo Main
My most orig 0.033 0.050 0.043 *
My other 0.028 0.0625-0.073 0.040
Don b (un-molested) 0.035 0.049 0.046 *
GasPump 0.0465 0.037 0.052
Bob Johnston 0.030 0.046 0.052 * (but no cupie doll)
(has 4 carbs all same)
"Distilled" range 0.030 to 0.040 0.040 to 0.060 0.040 to 0.050
GB (MT) 0.032 0.046 0.043 * jets from "Just 8Ns",
# 9N 9596 # 9N 9914 # 9N 9533
Thanks, Gary.
Every agreement adds to the confidence,
-----Original Message-----
From: Gary Berkey []
Sent: Tuesday, March 03, 2009 1:44 PM
To: Jesse Morris
Subject: My carb. jets measurments notes.

Found them in the shop!!!
Here are the #s I have written down.
Idle ......part # 9N 9596....did not have a drill this small, but used a 20 ga. piece of stainless wire. !!?? Fits real snug.
Econo.....part # 9N 9914... 0.046
Main.....part # 9N 9533....0.042--0.043
I have used these #'s on the last 3 carbs. I have overhauled, and have had real good results on all of them.
I buy these carb. jets from "Just 8Ns", due to being able to get them in singles, with the part# on the label.
I know that with this system, I cannot know what mod. M/S carb., it is jetted for, but It is my thought that, If they work good this way, with NO returns, and NO problems.......WHO really cares!!!???
BTW: If you can tell me what the sizing would be for 20ga. wire.....let me know......LOL
If I remember right the package the wire came in, had .73 MM, written on it, along side the 20 ga.
Hope this helps.

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