Mystery needles

**Tue Feb 02, 2010 1:44 am » Post: #1 » Download Post**

I recently acquired a number of HRC jet kit parts for my MC21. While I now have multiple sets of A, B & C needles, I also have a couple of sets of needles that I cannot find any info on. They are marked as follows:

J2GD
J06C
JHMU (The J is really faint)

Can anyone shed some light on what application these are for?

Thanks

**Thu Feb 18, 2010 5:51 am » Post: #2 » Download Post**

OK then, nobody has any ideas.......

I thought they might have been for avgas, or F3 carb bits. I was going to give them away or swap them if I knew what they were to be used for and someone had a need for them.

If they're not NSR, I guess I'll bin them.

**Sat Apr 10, 2010 12:26 am » Post: #3 » Download Post**

Just pulled a couple out of my SP - they say J2GC and have adjustable clip positions. Any ideas?

**Sat Apr 10, 2010 1:15 am » Post: #4 » Download Post**

Two J 06 J 's from an R2J carb set here.

**Sat Apr 10, 2010 1:50 pm » Post: #5 » Download Post**

J2G's are 1990 F-III, and rather rich!

I don't have earlier info to hand on this PC, only in books back home, but all the needles before the J2BA's (i.e. 1992~) are generally far too rich for a street bike.
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Andy.
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**Sat Apr 10, 2010 2:25 pm » Post: #6 » Download Post**

I HAVE F3 PARTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

**Sat Apr 10, 2010 10:22 pm » Post: #7 » Download Post**

Me too?!!

**Sat Apr 10, 2010 10:28 pm » Post: #8 » Download Post**

Sounds like it. We're awesome!!

**Sat Apr 10, 2010 10:39 pm » Post: #9 » Download Post**

Joined a pretty exclusive club eh? We'll be rubbing shoulders with Rossi next!

**Sat Apr 10, 2010 11:27 pm » Post: #10 » Download Post**

Bah.....if we have time for him.

**Thu Apr 15, 2010 2:08 am » Post: #11 » Download Post**

Andy,

So if the needles are F3, what is the numbering convention used ie what does the alpha-numeric combination mean?

I'd like to have a general understanding of this system.

Regards

Scott

**Thu Apr 15, 2010 1:32 pm » Post: #12 » Download Post**

All the HRC stuff reads rich to lean... xxxA is a thin (richer) needle, xxxZ is a thick (leaner) needle.

Buy some HRC books on Yahoo! Japan. You'll learn an awful lot from them if you study them carefully. There's nothing like having those special books for reference! Wink

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Andy.
NSR-WORLD.COM

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**Wed May 12, 2010 10:57 pm » Post: #13 » Download Post**

Thanks for that info Andy So my f3 carb needles read jo6d so I can assume that there a rich Needle??. IS it possible to run the standard needle's in the F3 Carb's as I'm finding the jo6d needles way to rich??.

**Wed May 12, 2010 11:41 pm » Post: #14 » Download Post**

Yes, no problem at all using any needle (including stock ones, and bear in mind there are a number of profiles to play with if you collect MC16, MC18 I & II, and MC21 needles! Wink

) in HRC carbs.
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

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**Thu May 13, 2010 1:36 am » Post: #15 » Download Post**

Monsta56, do want to buy/trade a pair of leaner JO6C needles then?

Mystery needles

Mystery needles

F3 parts

Needle numbering