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nc35 carbs on a UK spec nc30 engine
Posted: Tue Apr 20, 2010 9:59 pm
by skinnydog0_0
Hi all,
Has anyone ever run a set of 35 carbs on a uk spec 30 engine?
I understand that the uk 30 engine has 120 + 122 jets in the standard carbs which are bigger that the standard jets in the 35 carbs.
Should i use the 120 jets for this set up?
The engine is standard, and i have a micron race end can.
any advice or thoughts much appreciated.
Cheers
Re: nc35 carbs on a UK spec nc30 engine
Posted: Tue Apr 20, 2010 10:16 pm
by Drunkn Munky
Been covered many times on the forum, try a search theres many different setups you can go for but in general it'll give you a better midrange.
Re: nc35 carbs on a UK spec nc30 engine
Posted: Tue Apr 20, 2010 10:27 pm
by skinnydog0_0
Thanks Drunken Munky, i will trawl through see what i can find

Re: nc35 carbs on a UK spec nc30 engine
Posted: Wed Apr 21, 2010 8:04 am
by superlite
skinnydog0_0 wrote:Should i use the 120 jets for this set up?
No. NC35 carbs run smaller jets that NC30 carbs. You want to be around the 110-112 ballpark.
Re: nc35 carbs on a UK spec nc30 engine
Posted: Wed Apr 21, 2010 1:25 pm
by CRM
yes i have and in short
3/4 yamamoto system
UK NC30 & Jap spec bikes
Both responded very well with std air filter
and 110 and 112 setup
nothing else changed, pulled like fook.
post in the V4 section for a speedier more accurate reply
Re: nc35 carbs on a UK spec nc30 engine
Posted: Wed Apr 21, 2010 10:47 pm
by skinnydog0_0
Thanks guys,
I have up jetted to what the uk 30 carbs have 120 and 122. I haven't run the bike yet, but sounds like i may have been a little over generous.
I will take your advice and post thgis in teh V4 section
Cheers