Scott's NC30 Track Bike Build

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TZcRank
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Re: Scott's NC30 Track Bike Build

Post by TZcRank » Mon Apr 30, 2018 11:55 am

Tricky business these carbs!
Not sure if its because the manifold rubbers are hard as rock but I had some fun persuading them back in after a semi clean and check.
I found that attaching the rubbers to the carbs first worked better than with the rubbers on the manifolds. Is there a trick or advise somebody could share for future reference please. And yes.....the arrows are pointing in the right direction.

3 Pilot jets were blocked, otherwise they were surprisingly clean inside.
As said, this was a semi carb strip down just to get the bike started, full strip down and rebuild a bit later when the bike is almost ready to hit the track.

Forgot to take an after pic but here is a before

Image

Must say I'm pretty impressed with the quality and the engineering of this bike.
Motor sounds nice too!!

pptom
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Re: Scott's NC30 Track Bike Build

Post by pptom » Mon Apr 30, 2018 8:01 pm

No real special tricks, they're just hard with age.
I put some brand new genuine nc35 inlet rubbers on my nc30, same size and they have a slight taper to guide the carbs in so no chance of the carbs pinching the edge of the rubber. I use some o ring lube on them and the carbs slide in lovely, it's night and day with used rubbers.
Heat helps too, with older rubbers I heat, then apply some rubber friendly lube, then tilt the carbs and get the front bank in first, then the rear should push straight down, it stll requires a bit of force.

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Re: Scott's NC30 Track Bike Build

Post by pptom » Mon Apr 30, 2018 8:04 pm

Nice job ny the way, always satisfying getting a new bike running

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Re: Scott's NC30 Track Bike Build

Post by TZcRank » Tue May 01, 2018 8:19 am

It is indeed pptom. I'm happy that it sounds relatively good. Do you have the part # for the 35 rubbers?

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Re: Scott's NC30 Track Bike Build

Post by pptom » Tue May 01, 2018 3:46 pm

Not to hand, got them from David silvers spares, you can search by bike model

blknoel
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Re: Scott's NC30 Track Bike Build

Post by blknoel » Thu May 03, 2018 2:56 am

That is one trick looking screen brace in the last photo. :o

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Re: Scott's NC30 Track Bike Build

Post by TZcRank » Thu May 03, 2018 9:20 am

blknoel wrote:
Thu May 03, 2018 2:56 am
That is one trick looking screen brace in the last photo. :o
Yeah .Awesome job there :grin:

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Re: Scott's NC30 Track Bike Build

Post by TZcRank » Wed Jul 11, 2018 1:19 pm

Has anybody bought a set of Ali radiators advertised on E-bay?
Are they any good, price seems slightly low for what I would expect?


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Re: Scott's NC30 Track Bike Build

Post by reverse cylinder jim » Thu Jul 12, 2018 6:37 pm

Hi,
I've had quite a few sets of cheap aftermarket rads over the years and they ain't bad. I've only ever used them on track and never fitted a fan so can't comment on fitment etc on that.

The only real issue I had was with a few top rads and the cap not fitting 100%.
One was fixed by using a genuine cap but the other never really sealed no matter what cap I used. Only suffered this on very hot days and the bike was being thrashed ;)


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