Diameter of the straight part of the needle.

[Selvagem]

Hello everybody.

I am currently using a needle NEDF pilot with Jet # 52.

I feel a little lean condition, test run your famous video Slavens:

https://www.youtube.com/watch?v=zVzq...in-k_QfSBn1zbw

In my case, this lean condition is not as exaggerated as in this video is actually very subtle.

Could someone show me a needle OEM Triple Taper with the diameter of the straight part of the richer that the F tual I'm using? I love the way the needles Suzuki NE work, I can not imagine using two needles taper again.

Remembering my carburetor is AS1, and the Brazilian fuel is very different from that used in the rest of the world, contains much alcohol, causing the need for a richer hit.

PWK AS1
NEDF # 3
AS: 1 turn from closed.

Thanks in advance.

[celler]

Cut and Paste,


MrBlah's got it right. JDs does a pretty good job, however is missing some of the newer needles which is a bummer..

I have kind of worked out a break down of the OEM Needle codes.
N-X-Y-Z (N3EJ) (NEDW) (NOZI) (N1EF)

N - OEM Needle identifier
X - Taper profile
Y - Clip position/length
Z - Diameter

The X/Y doesn't seem to share any common ground between needles. 3 seems to be yamahas 2 taper needle. E is suzi's 3 taper, O is ktms 3 taper, 1 is the stock GG needle also a 3 taper. I'm not sure if the tapers are the same between the NOZ/N1E. They do feel very similar. The Y part which indicates clip pos/length is also paired up with the taper profile (x) to form a needle with the same properties that allows for half clip adjustments. Exmaples N3Ex/N3Cx, NEDx/NECx. I have a feeling NOZx/N1Ex is the exception and are half clip different using the same taper.

Z is the needle diameter of the straight section of the needle. It covers idle to 1/8-1/4 depending on the needles taper profile. Sizes range from:

Nxxx needle diameters
D=2.685mm
E=2.695mm (JD Blue)
F=2.705mm
G= 2.715
H= 2.725
W/I=2.735 (JD Red)
J= 2.745
K=2.755

[Selvagem]

Thanks for the table.

As I understand it, my problem carburetion (which is the the same video) is solved with a needle with the richest, straight part correct? I'm already using a # 52 pilot jet, I imagine already be relatively generous, right?

I had not thought about buying one JD kit almost U $ 80.00 (for the table would be the richest after the next needle diameter F that I am using) to take advantage of only a needle, I have over 15 different needles and prefer to test several until you find one that looks perfect.

I wonder what OEM needle diameter D or E could buy, since I'm already using the needle Suzuki NE richer.


The needles NOZ E, NOZ D used in the KTM exhibit the same characteristics of NE Suzi? Ie first poor taper, and enriching for WOT?

Very grateful.

[Jakobi]

NEDE - E diameter is one step richer.

[Selvagem]

Originally Posted by Jakobi

NEDE - E diameter is one step richer.

Thanks Jakoby.

Do you have the part number of this needle?

[Jakobi]

Don't know if they actually made them that rich or not. Would have to check with a dealer or do some research.

[Selvagem]

Originally Posted by Jakobi

Don't know if they actually made them that rich or not. Would have to check with a dealer or do some research.

Think that this needle does not exist.

In the parts list for the Suzuki RM 250 2007, the richest needle is NEDF.

This is why I asked about other needle richer than F.

Jacoby Any suggestions?

[Jakobi]

The NOZ/N1E needles are pretty similar in the 2nd and 3rd tapers, but the first taper is much richer. They are generally too rich for most, but may work ok for your purposes as your current setup is already quite rich.

[FastFast]

If I read that chart right does it show the NEDW and JD Red having about the same diameter?

[Selvagem]

Originally Posted by Jakobi

The NOZ/N1E needles are pretty similar in the 2nd and 3rd tapers, but the first taper is much richer. They are generally too rich for most, but may work ok for your purposes as your current setup is already quite rich.

I have the needle N1EF saved. The problem with this needle, in my view, is that the straight part is very short. The straight part of the needle is virtually ignored, already working in the conical part. The length of the straight part of the needle NOZ is as short as the N1EF?