NC30 carby jetting - DIY guide

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CMSMJ1
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Re: NC30 carby jetting - DIY guide

Post by CMSMJ1 »

i'd say too rich so would go back down on the main jet sizes. Leave the airfilter well alone ;)
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pauliealdridge69
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Re: NC30 carby jetting - DIY guide

Post 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
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karikeo
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Re: NC30 carby jetting - DIY guide

Post by karikeo »

hey guys
i remove air filter is run better
but in idle is irregular apparently ineed carb balancing
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karikeo
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Re: NC30 carby jetting - DIY guide

Post 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
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CMSMJ1
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Re: NC30 carby jetting - DIY guide

Post 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!
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karikeo
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Re: NC30 carby jetting - DIY guide

Post 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
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karikeo
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Re: NC30 carby jetting - DIY guide

Post by karikeo »

I want to run this well and more
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CMSMJ1
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Re: NC30 carby jetting - DIY guide

Post 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!!
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karikeo
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Re: NC30 carby jetting - DIY guide

Post 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
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Jac-al
Re: NC30 carby jetting - DIY guide

Post 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
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