Inside Diameter Dimension Of Pilot Jets...Anyone?

[Vmaxattacks]

I have looked exhaustively for any info on Mikuni pilot jets and all I can get are thread pitch and overall length but I NEED the dimension of the hole of the respective jets. Can anyone give me those dimensions? I need the I.D. of a #40 and a #42.5. I have all of the necessary equipment to drill them so I just need those spesc.
Thanx in advance!

Bud

 

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About this big. Oh wait, this one was plugged. Shit was like concrete. Had to soak it for a couple hrs

 

[Vmaxattacks]

Thats the one.:rofl_200:

 

[dannymax]

The number of the OEM Pilot Jet is 37.5 and I believe that would put the ID at .0375", ......"I believe"! unk:

 

[Rhoy Carter]

I have watched people drill jets out for 55 or so years and I cannot say that one of the drilled jets worked well and jets are to cheap to try and drill them, save yourself some problems and buy a set of 40's and try them if you feel they need to be bigger. I am at sea level and running size 40 pilot jets and the only thing I changed was the a/f screws from 3.5 turns to 2.5 turns out.

 

[Vmaxattacks]

The number of the OEM Pilot Jet is 37.5 and I believe that would put the ID at .0375", ......"I believe"! unk:

Nope..I used a gauge pin on my 37.5's and they are .014".
..Bud

 

[maleko89]

Dan-o, Mikuni measurements are by flow rate. DJ use size of opening.

 

[06VMAXIMUS]

I agree with Rhoy, why drill them when they are so cheap to buy? Plus you can always put the smaller ones back in if you don't like the outcome.

 

[maleko89]

Bud, I have a set of 42.5's for sale. How does $12 sound?

 

[Vmaxattacks]

PM sentunk:

 

[dingy]

This is a chart I found online. I do not know how accurate it is.

Gary

 

[dannymax]

Nope..I used a gauge pin on my 37.5's and they are .014".
..Bud

Dan-o, Mikuni measurements are by flow rate. DJ use size of opening.

Missed that by a mile....sorry! :worthy: