Anyone know what this is?

[Doc]

I know it is a carb needle but why is it tapered? Who makes em?

[Degsy]

All carb needles are tapered.

[Doc]

Uh ok then how the hell did the other bikes ones get straight?

The taper wear off?

[Degsy]

Originally posted by Doc
Uh ok then how the hell did the other bikes ones get straight?

The taper wear off?

Yep, they do wear like that.

Now you have me second guessing. I have never seen an un-tapered needle.

[Karaya One]

Originally posted by Degsy
Yep, they do wear like that.

Now you have me second guessing. I have never seen an un-tapered needle.

Try 85-87 GSXR..... almost straight up and down.

[Doc]

FWIW,
Gino didn't seem to be too surprised with the straight ones. He thought the tapered ones were odd.

[Degsy]

Originally posted by Karaya One
Try 85-87 GSXR..... almost straight up and down.

....almost

I fail to see how a straight needle can block flow properly and get even flow all the way around.

[LuvDog]

I thought they were all tapered too... just that some of the smaller ones looked almost straight?

[beet]

The taper lets the fuel meter in. More air more fuel.

[nt650hawk]

The taper lets the fuel meter in. More air more fuel.

I figured that one out.


I know this is foreign to a lot of you guys/girls.

The question is:

Who would make a tapered needle like that?
It also allows 6 positions with the c clip I have only seen 5 positions. I know, I know it gives more adjustibility with 6.

DOC you may want to check with Horde... Let me know when you find out. I would like to give it a go. My mid is pretty flat and would like to try something different.

[Tabby]

That is probably a Dynojet needle. The tapers on different bikes can vary greatly. The Dynojet needle in the kit for my 93 GSX1100G looks a lot like that. I'm just guessing that with all the interaction between cams, timing, airbox/intake resonances, exhaust wave action, etc, etc, that, that particular needle is for an engine that ramps up on fuel needs in the needle range, rather abruptly.

[SVRACER01]

Originally posted by Degsy
....almost

I fail to see how a straight needle can block flow properly and get even flow all the way around.

"even flow.. thoughts arrive like butterflies yeah... ohhh he dont know.. so he chases them away.. wooo hooo"

[ZX-12R]

Originally posted by SVRACER01
"even flow.. thoughts arrive like butterflies yeah... ohhh he dont know.. so he chases them away.. wooo hooo"

I was waiting for someone to make that reference!

[OreoGaborio]

Oxx knows ALL about flow... mention "sandbagging" "cherrypicking" or "bumping to AM" to him & he gets really heavy periods