Scott's NC30 Track Bike Build
- TZcRank
- NWAA Supporter
- Reactions:
- Posts: 79
- Joined: Wed Apr 18, 2018 5:54 am
- Location: JHB - South Africa
Re: Scott's NC30 Track Bike Build
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
Must say I'm pretty impressed with the quality and the engineering of this bike.
Motor sounds nice too!!
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
Must say I'm pretty impressed with the quality and the engineering of this bike.
Motor sounds nice too!!
-
- NWAA Supporter
- Reactions:
- Posts: 141
- Joined: Sun Jul 05, 2009 5:32 pm
- Bike owned: Nc23 x 2 and an nc30
Re: Scott's NC30 Track Bike Build
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.
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.
-
- NWAA Supporter
- Reactions:
- Posts: 141
- Joined: Sun Jul 05, 2009 5:32 pm
- Bike owned: Nc23 x 2 and an nc30
Re: Scott's NC30 Track Bike Build
Nice job ny the way, always satisfying getting a new bike running
- TZcRank
- NWAA Supporter
- Reactions:
- Posts: 79
- Joined: Wed Apr 18, 2018 5:54 am
- Location: JHB - South Africa
Re: Scott's NC30 Track Bike Build
It is indeed pptom. I'm happy that it sounds relatively good. Do you have the part # for the 35 rubbers?
-
- NWAA Supporter
- Reactions:
- Posts: 141
- Joined: Sun Jul 05, 2009 5:32 pm
- Bike owned: Nc23 x 2 and an nc30
Re: Scott's NC30 Track Bike Build
Not to hand, got them from David silvers spares, you can search by bike model
-
- Settled in member
- Reactions:
- Posts: 23
- Joined: Wed Jul 13, 2016 10:39 am
- Bike owned: 1992 NC30
- Location: Ho Chi Minh City, Vietnam
Re: Scott's NC30 Track Bike Build
That is one trick looking screen brace in the last photo.
- TZcRank
- NWAA Supporter
- Reactions:
- Posts: 79
- Joined: Wed Apr 18, 2018 5:54 am
- Location: JHB - South Africa
- TZcRank
- NWAA Supporter
- Reactions:
- Posts: 79
- Joined: Wed Apr 18, 2018 5:54 am
- Location: JHB - South Africa
Re: Scott's NC30 Track Bike Build
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?
Are they any good, price seems slightly low for what I would expect?
- TZcRank
- NWAA Supporter
- Reactions:
- Posts: 79
- Joined: Wed Apr 18, 2018 5:54 am
- Location: JHB - South Africa
-
- Site Supporter
- Reactions:
- Posts: 421
- Joined: Sun Feb 28, 2010 5:22 pm
Re: Scott's NC30 Track Bike Build
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
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