J51's or 8ZC's?

[BillingCBR]

Hi all,

While I have the '30 to bits trying to find out how broken it is, I've overhauling the carbs and fitting my NC24 slides. I don't have £40 spare to buy RO needles, so need to make a choice between stock '30 or stock '24 needles (as titled) I know the J51's are longer, but don't know how that'll affect the running of the bike by mix and matching.

Any advice please?

[royster81]

Stick with stock, they are that length for a reason.

[Martin]

^^^^ If you did use the NC24 needles, because they're longer the bike will run leaner.

[BillingCBR]

^^^^ If you did use the NC24 needles, because they're longer the bike will run leaner.

Pretty sure the J51's are longer can't remember as they're in the carbs now, but know I put the J51's back in

[Cammo]

The 8zc's are much shorter and will run very rich in nc30 carbs.

They're a similar length to the nc30 hrc needles.

[BillingCBR]

Cheers Cammo, I'm running stock intake flaps, snorkel, box etc so no need for the 8ZC's When I have more money to throw at it I'll get some of Rick O's needles and go from there

[Cammo]

Sounds like a good plan!

[Martin]

^^^^ If you did use the NC24 needles, because they're longer the bike will run leaner.

Sorry getting confused with what goes in where but you knew what I meant

[Neosophist]

^^^^ If you did use the NC24 needles, because they're longer the bike will run leaner.

Sorry getting confused with what goes in where but you knew what I meant

The stock NC24 set-up is awfully close to the NC30 HRC setup.

I think the NC24 runs smaller air-jets than on the NC30 though? I can't remember off-hand though.

I'd imagine without airjet correction it'd run too rich in the NC30 carbs.

I have 51a/b's in mine and it runs fine