nc29 carb needles

stimpy · Post by **stimpy** » Fri May 02, 2008 8:16 pm

im trying to find a set of needles abit richer than std nc29 units....apart from trying to track down hrc etc has any1 tried needles off different model bikes....eg,early cbr600
cheers
stimpy

DiscoDan · Post by **DiscoDan** » Sat May 03, 2008 2:49 am

Hi Stimpy

I have a set of VFR400 needles that came with the bike but I've never fitted. Apparently they are meant to make it a bit stronger in the mid-range (whether that's richer or not who knows). I'll pull them out over the weekend and post some measurements

cheers
danny

matt69 · Post by **matt69** » Sat May 03, 2008 10:37 am

Stimpy,

Took so long stuffing round on the dyno to get ny NC29 sorted I never got to try the 600 F2 needles, but I have them plus a set of HRC needles designed to be used with the short velocity stcaks that you can try if you are interested.

I'm not sure which ones the RB guys recommend to use it was rvf or VFR.

Matt

stimpy · Post by **stimpy** » Sat May 03, 2008 1:06 pm

cheers guys
im told to look for more of a taper than the stock needles
i had a look at some hrc rvf needles at tarmacs the other day,they are about 5mm to short.
look forward to your findings dan
cheers matt,will be in touch once i know.
you guys comming down to broadford next weekend for the mrrda?
stimpy

DiscoDan · Post by **DiscoDan** » Sun May 04, 2008 4:17 am

Here's the details on those needles Stimpette:
Honda part 16151-MR8-003, off a V4 400 (not sure which), J51B stamped on base

total needle length from top of seating face (the face of the 'washer' part closest to the point): 43.4mm

dist from seating face (SF) needle diameter
10 2.46
20 2.32
25 2.22
30 1.94
35 1.70
40 1.44
42.2 (crest of the point) 1.36

I'll send you a scan of the drawing directly. Unfortunately I won't be getting to Broadford next weekend, a couple of other commitments there that have to take precedence I'm afraid

cheers, Danny Builth-Snoad

Post by **superlite** » Mon May 05, 2008 3:03 am

Those needles are standard VFR400 needles (front carbs). I can't help you with what other needles will fit the NC29, but if VFR400 needles do fit, I've got a load of different needles with different lengths, base diameters etc.

Post by **Cammo** » Mon May 05, 2008 6:46 am

Scott, it might be worth having a look at RVF needles the carbs are very similar to NC29.

Post by **Cammo** » Mon May 05, 2008 6:48 am

stimpy wrote:i had a look at some hrc rvf needles at tarmacs the other day,they are about 5mm to short.

Just saw this bit.

The hrc vfr needles are about 5mm shorter than std, the rvf might be worth a shot.

stimpy · Post by **stimpy** » Mon May 05, 2008 7:57 am

fun and games with these carb setup issues haha
i sometimes wonder where i would be without these forums,
i thank all for your inputs,
now
this being the "new forum", some have new names...i picked up on matt,and danny straight away...but stickshift and superlite...did u 2 go by different names in the old forum???
cheers
stimpy

DiscoDan · Post by **DiscoDan** » Mon May 05, 2008 9:31 am

Yeah, I took the opportunity to bag my 'normal' tag which had already been taken on the old forum. I guess there's someone out there cursing me as we speak. There's a bunch of other names that are new but the people seem to ring a bell. It's kind of like one of those parties where everyone is shagging in a pitch back room and slowly the lights come on, they had a familiar feeling but you couldn't quite place it until it's made clear.

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