NC30 Emulstion Tubes and Needles

[porndoguk]

Right, Carbs are OFF again!

gonna list each carb as whats in it.

1
Needle: JS1A
Spring Free Length: 143mm
washer: 0.48mm
5 Hole Emulsion
120 Keihin Jet
Float: 6.8mm

2
Needle: JS1B
Spring Free Length: 144mm
washer: 0.51mm
4 Hole Emulsion
118 Keihin Jet
Float: 6.8mm

3
Needle: JS1A
Spring Free Length: 143mm
washer: 0.48mm
5 Hole Emulsion
120 Keihin Jet
Float: 6.8mm

4
Needle: JS1B
Spring Free Length: 142mm
washer: 0.50mm
4 Hole Emulsion
118 Keihin Jet
Float: 6.8mm

hopefully alex's needles and emulsions should be hear tommorrow, i have 120 jets looks Similar Dyno jets they have 120 RD (anyone know what they are?) on the top i have 4 of the matching same ones im going to stick in.

the needles all slot snuggly into the emulsion tubes and done appear to be ovaled? what do i need to measure to find this out, any idea of needle dimensions etc?

should the slide springs all be the same length will the +/- 1mm make a difference?

going to recheck the pilot screw tommorrow, will set to 2.25 (2 + 1/4) to make sure.

ive refitted my vaccuum hose from cylinder three just incase i decide to refit my tank vacuum tap diaphram.
ive blocked the hose off with an M6 allen bolt.
i just want this midrange perfect, and its still not right with the 1 washer in as previously mentioned so im

all the slides felt slightly lubricated with petrol and the tunnels and slides feel a little gritty friction etc, i have a subfilter fitted btw.

advice on the above Qs would be great Rick

[Cammo]

Everything looks to be in the right place, and the specs look fine.

You can use verniers to check if the needles are oval, take 2 measurements at 90 degrees to each other, checking at a couple of different lengths along the needles (the tapered and the straight section).

The difference in slide spring length will affect the fuelling, but insignificant really. I've never seen a set with identical lengths.

It might be worth looking at whether all the butterflys are synched too?

[porndoguk]

Everything looks to be in the right place, and the specs look fine.

You can use verniers to check if the needles are oval, take 2 measurements at 90 degrees to each other, checking at a couple of different lengths along the needles (the tapered and the straight section).

The difference in slide spring length will affect the fuelling, but insignificant really. I've never seen a set with identical lengths.

It might be worth looking at whether all the butterflys are synched too?

ill measure the needles later, ive found some drawings on akhara website for sizes etc,
whats the difference between the A & B needles?

i know the carbs are ballanced perfectly i did them with morgan carbtunes about a month ago with uber pikey and he was taking the piss because i adjusted the 7mm screws with my hands now of these fancy angled driver etc.

[uber pikey]

Everything looks to be in the right place, and the specs look fine.

You can use verniers to check if the needles are oval, take 2 measurements at 90 degrees to each other, checking at a couple of different lengths along the needles (the tapered and the straight section).

The difference in slide spring length will affect the fuelling, but insignificant really. I've never seen a set with identical lengths.

It might be worth looking at whether all the butterflys are synched too?

ill measure the needles later, ive found some drawings on akhara website for sizes etc,
whats the difference between the A & B needles?

i know the carbs are ballanced perfectly i did them with morgan carbtunes about a month ago with uber pikey and he was taking the piss because i adjusted the 7mm screws with my hands now of these fancy angled driver etc.

I didn't take the piss, I merely stated "you had girl hands" and that a mans hand wouldn't fit in there fact.

[porndoguk]

Everything looks to be in the right place, and the specs look fine.

You can use verniers to check if the needles are oval, take 2 measurements at 90 degrees to each other, checking at a couple of different lengths along the needles (the tapered and the straight section).

The difference in slide spring length will affect the fuelling, but insignificant really. I've never seen a set with identical lengths.

It might be worth looking at whether all the butterflys are synched too?

ill measure the needles later, ive found some drawings on akhara website for sizes etc,
whats the difference between the A & B needles?

i know the carbs are ballanced perfectly i did them with morgan carbtunes about a month ago with uber pikey and he was taking the piss because i adjusted the 7mm screws with my hands now of these fancy angled driver etc.

I didn't take the piss, I merely stated "you had girl hands" and that a mans hand wouldn't fit in there fact.

man?

i didnt here you say "rick you the girl" when i help you out and fix things and fit alarms?

in fact you often say "you da man" etc etc.

[uber pikey]

Look you couldn't have made this sound any more feminine

man?

i didnt here you say "rick you the girl" when i help you out and fix things and fit alarms?

in fact you often say "you da man" etc etc.

Now shut up bitch and fix my alarm

[porndoguk]

Look you couldn't have made this sound any more feminine

man?

i didnt here you say "rick you the girl" when i help you out and fix things and fit alarms?

in fact you often say "you da man" etc etc.

Now shut up bitch and fix my alarm

ill disconect my female hands and fit my masculine hands for your alarm fitting

and then ill fit this hand



to cut you to ribbons you little bitch

[porndoguk]

Hmm, carbs back together, and thats my lot for the night, kids are asleep, and i cant be arsed to work for the next hour or so trying to refit and then end up starting later tonight,

alexs needles are in 120 RD (similar to the dynojet ones) are in, i believe these to be old Rick Oliver ones, he said hes used to sell ones like this, but his supplier changed there suplier etc etc. these came from the carbs i currently have on there i beleieve.

anyway

the needle doesnt sit in the bottom of the emulsion tube as i expected, its sits oposite to it like a T i fitted a tube to one of the inlets for the slides and blew in and watched with the torch as is slide up the shaft

so fingers crossed that when i stick them back on tomorrow all goes well and it sorts it out, would be nice!

that all folks

Rick

[Neosophist]

Any better?

[porndoguk]

Any better?

Dont know, havent started it!

curt came round and i re soldered a few wires for his alarm then i did some concrete where the mssing bit of the slab by the back do it, then re fitted the carbs did a few other bits, put body work on and before i knew it, it was 1am! so will start first thing, if these needles dont cure it i dont know what else to do.

ive put 120s in on all 4 carbs now mart.