Novarossi 3 needle carb

[Vinni]

As any1 got any good starting point settings ? Ma Lrp 32 4.1 already broken in xtec carb bit inconsistent so trying nova carb mod ive closed all 3 needles n backed m out to flush HSN 4 n half Midrange 2 n LDN 7 n half ?

 

[ohsnap]

Vinni,
You wrote "so trying nova carb mod ive closed all 3 needles n backed m out"

Your title says Novarossi and you identify a Nova carb above.
Do you have an older Novarossi carb or a current or relatively current production Nova carb?
If it's a used carb, do you know which engine (Manufacturer and Engine Model) it came off of?
I looked at carbs on several .28 Novarossi engines - all were two needle.

Regardless, unless I had instructions in my hand detailing the logic / procedure, I'm perplexed why one would tinker with factory Low Speed and Mid-range needles prior to installation and testing.
Same thought goes for attempting to install a used carb unless I was rebuilding it.

The HSN is where I would focus my attention.
Did someone already mess with the needles prior to your obtaining it?
If not, do you remember their starting points?

Guidance that I recall reading instructed to move the LSN & midrange needles in conjunction to one another - a half turn in on one needle equates to a half turn out on the other - at least under certain conditions...

Within the past year I had to replace a mid-range needle due to its o-rings shrinking, and it vibrated itself out.
Other than that, it's been years since I've messed with either the LSN and Mid-range needles

 

[Vinni]

It’s the novarossi 3 needle carb got it off marketplace as there is no new 1s fo sale here in the Uk so it wo worth grabbing n i always strip n clean ma stuff down even the new stuff ive backed needles back out to flush just gotta file 1 mm off the throat - neck now fo it to fit ma Lrp wo just wondering if any1 else who add done add any decant starting point settings

 

[ohsnap]

"got it off marketplace as there is no new 1s fo sale here in the Uk "

Since Novarossi closed their doors several years back, at best you'll find is NOS.
There are some people who have connections back to Italy, and it is possible to obtain some hard-to-find parts and "new" engines.

My guess is that you have a carb off a .21 engine.
As I mentioned, none of my .28's have a 3-needle setup.
Neither does the .25 Roma engine.

I haven't dealt with a .21 Novarossi for many years and will have to dig deep just to figure out whether or not I have the info you're looking for.
It may take a few days.

 

[Vinni]

Not shure wot part number it is but it’s the 3 needle 1 that most people use on the Lrp engines ive got it up n running now filed 1mm of neck all good got a decent starting point just need fine tune n maybe 9mm Venturi nice 1 pal

 

[ohsnap]

Unfortunately, I can't find the box / paperwork that I have in mind, but if you have it running and if a 9mm Venturi is necking it down, you should be in good shape with that carb.