Chrome ZX and Performance filter - jet sizes for the carb?

[davidkent89]

Hello all.
Got my leo vince Chrome ZX now, and got my Performance filter thanks to 125power on here.

The exhaust came with rollers and clutch springs, so theres not a problem there, they will be fitted, however no jet was included.

Now for one, I'm not sure what jet size i have as standard.
Its a 2004 NRG MC3 Liquid Cooled.

And next, what sizes to buy?

I need to block the Air Recirc off, and fit the leo vince, which will need upjetting, and also, i will need another size jet for the air filter.

I want to ideally buy a jet for just the exhaust, and a jet for the exhaust and filter, so that i can run one without the other.

Any ideas? As i hear taffspeedracing has reopened now.

Cheers
David

[davidkent89]

Also, any other places to get them from?

[Type_Mo]

Most peds run rich as standerd, so might not need to upjet it, but for a open filter u go up by 10%
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- Typhoon ?0 - Yamaha DT125R - Aprilia SR125 - Yamaha DT125R - Honda Hornet 600 -

[davidkent89]

I'll show you a picture of the filter if i can, or one similar.
Also, 10% means nothing to me lol... I dont know what size it has now, or what size it would need!
David

[davidkent89]

https://125power.com/index.php?main_page=product_info&cPath=4_8&products_id=209

Its one of those, with a 90 degree angle.

[SoND]

My mate had something close to that on his scooter.

I think the jet he used was 120. It drank the petrol and made the bike loud as fuck. Not worth the money he had to spend on petrol afterwards.
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Go back to bed - You have no rights - "Streetfighters ~ Mainstream motorcycling's crackwhore sister."

[Type_Mo]

A 120 Jet on a 50cc Your Jokeing Right?

U gotta get ur old jet out n check the size, go up by 10%, try it, if its wrong then try other sizes, Or get a shop to do it for about £20 ?
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- Typhoon ?0 - Yamaha DT125R - Aprilia SR125 - Yamaha DT125R - Honda Hornet 600 -

[davidkent89]

When you say 10%, do you mean if its a size 70, use a 77?
Will my ped burn this much fuel all ok? and I don't want it running lean or rich!
Any ideas?
Also, anyone know what size i have standard?
Need to know so i can order some jets ASAP for fitting friday!
David

[Kickstart]

Hi

Presume it uses a Dellorto carb. If so you can get the jets from Eurocarb (the Dellorto importer). I would go up several sizes and then work down from there.

A 120 jet (Dellorto jet, different carb makers have used different systems for specifying the sizes of the jets) on a 50 sounds very extreme. A 120 is around what is used by an Aprilia RS125 with a 28mm carb.

All the best

Keith
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