NC35 Pilot jet issue

LTP22 · Post by **LTP22** » Sun Apr 13, 2014 7:38 pm

I have got my carbs apart giving them a once over before the bike is back on the road. I notice that my pilot jets are all the way in, so I went to set them to the standard 1 5/8 turns out but it seems extremely loose as though it will set itself free if I leave it.

Anyone else had this or is it normal for them to be like that?

arsey30 · Post by **arsey30** » Sun Apr 13, 2014 7:57 pm

You mean screws not jets, if someone wound them full in, then they may have left the spring out, and the O ring and tiny washer.

LTP22 · Post by **LTP22** » Sun Apr 13, 2014 8:25 pm

I'm pretty sure it's a pilot jet. Looking at Cammos guide for the NC30, there only seems to be the jet/screw.

Either way, I have no spring on it so I'm guessing that's why it's so loose. Where can you get them from?

arsey30 · Post by **arsey30** » Sun Apr 13, 2014 9:26 pm

The pilot jet is inside the fuel bowl and is tightened fully down, but the pilot screw is on the out side [nc30] or under [nc35] of the carb.

LTP22 · Post by **LTP22** » Sun Apr 13, 2014 9:39 pm

I see...makes more sense now!

Thanks for your help mate :)

Icemaestro · Post by **Icemaestro** » Mon Apr 14, 2014 2:57 am

Out of interest, why would them being wound full in mean they might have left the spring, oring and washer out?

arsey30 · Post by **arsey30** » Mon Apr 14, 2014 8:28 am

Any one that winds them in full in does not know what they are there for [thinks they blank some thing?] so it is likely they assembled them wrong.
It must have run poorly low down as it would have been very rich.

Icemaestro · Post by **Icemaestro** » Mon Apr 14, 2014 9:27 am

Haha true. The spare set of carbs I got had two wound in, two at stock...I was so very condused

LTP22 · Post by **LTP22** » Mon Apr 14, 2014 2:12 pm

The screws on the outside seem to be set ok, I just misunderstood about the pilot jet inside the carbs...feel a bit of a fool now haha!

arsey30 · Post by **arsey30** » Mon Apr 14, 2014 4:56 pm

Do not confuse foolish with training/education.
I was once that very same fool, as a spotty faced youth 53 years ago working on my first bike [Bsa Bantam]

My brother said replace the needle jet if does not pull, so I replaced the needle by mistake.
The main jet is fitted into the needle jet, so then I replaced that, but third go I replaced the right one.

Honda set the carb pilot screws at the factory when new [on an air flow meter?] so before removing them, screw them in to count the turns, as they will be close to spec, but maybe plus or minus 1/8th or so different,

NC35 Pilot jet issue

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