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Carb main jet hole sizes.

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Guest
Hi guys. Does anyone have the hole diameters for main jets on mikuni vm22 carbs?
I dont mean the jet numbers but the actual size of the hole for various jet sizes.
As in
#80 jet. diameter???

Up to about #120

Cheers
 
Somewhere on the net there is an equivalency chart. Google Mikuni jet sizes.
Because they started as Amal licencees the jet sizes aren't direct measurements.
Dellorto is better - numbers are mm sizes.
 
If you are planning on drilling the jets, please don't. :-k

While it may fit YOUR immediate needs, pity the next guy who wants to adjust the jetting, but will be basing it on the numbers he sees.

.
 
Steve said:
If you are planning on drilling the jets, please don't. :-k

While it may fit YOUR immediate needs, pity the next guy who wants to adjust the jetting, but will be basing it on the numbers he sees.

.
Click to expand...

Ten seconds on the bench grinder and there's no numbers on the jets. That's a pretty good hint they've been drilled.
 
Steve said:
If you are planning on drilling the jets, please don't. :-k

While it may fit YOUR immediate needs, pity the next guy who wants to adjust the jetting, but will be basing it on the numbers he sees.

.
Click to expand...

I intend to make my own jets, there are no sizes on the jets in the carbs now so i have no idea what they are anyway and machining my own is a simple no wait solution to rejetting the carbs
 
FWIW
Buy a good pin gauge set and pin all your jets.
Mass produced jets are generally off from their stamping.
I've had jets stamped 120 that have pinned anywhere from 112-128.
Same goes for emulsion tubes ect..
 
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