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Re: NC30 carby jetting - DIY guide
Posted: Sat Jan 19, 2013 2:07 pm
by CMSMJ1
i'd say too rich so would go back down on the main jet sizes. Leave the airfilter well alone

Re: NC30 carby jetting - DIY guide
Posted: Sat Jan 19, 2013 11:31 pm
by pauliealdridge69
CMSMJ1 wrote:i'd say too rich so would go back down on the main jet sizes. Leave the airfilter well alone

got to agree, or remove the shims on the needles and put the stock filter back in anyway
Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 2:21 am
by karikeo
hey guys
i remove air filter is run better
but in idle is irregular apparently ineed carb balancing
Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 2:22 am
by karikeo
karikeo wrote:hey guys
i remove air filter is run better
but in idle is irregular apparently ineed carb balancing
run much more better
Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 8:00 am
by CMSMJ1
If removing the air filter made it run a lot better - then you need to fix the cause of the problem - which is main jets that are too large.
If it idled OK with filter, fit that and get the main jets changed for smaller ones - probably 115/118 - Let's see a picture of the bike, sounds nice!
Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 7:15 pm
by karikeo
CMSMJ1 wrote:If removing the air filter made it run a lot better - then you need to fix the cause of the problem - which is main jets that are too large.
If it idled OK with filter, fit that and get the main jets changed for smaller ones - probably 115/118 - Let's see a picture of the bike, sounds nice!
were originally jet 115f and 118
thius is my bike

Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 7:18 pm
by karikeo
I want to run this well and more
Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 8:28 pm
by CMSMJ1
So how did it run before you changed the exhaust? or did you change it, and then also change the carb jets?
Alright that bike! Needs a wash though eh!!
Re: NC30 carby jetting - DIY guide
Posted: Sun Jan 20, 2013 11:14 pm
by karikeo
CMSMJ1 wrote:So how did it run before you changed the exhaust? or did you change it, and then also change the carb jets?
Alright that bike! Needs a wash though eh!!
change the exhaust and after the jetting work
yes Needs a wash
Re: NC30 carby jetting - DIY guide
Posted: Wed Jan 23, 2013 10:20 pm
by Jac-al
hey guys ive checked everything and am still having the same problems as per this post
viewtopic.php?f=24&t=40192. thought it was the reg/rec, but now im thinkin the same think i did at first. im sure its running lean cause the jets r too small, tp recap i got an end can and done the carb mods from here with 110 jets all round, im in S.A where its hot, surely the jets r too small, it ran strong with the std pipe with 115/118