HELP with keeway tx 125 carb

[calvert]

hi iv recently changed my air box and removed the egr valve but need to up my jet size not sure how much by or what size it is now can some 1 please help me out.thanks
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sean c

[Rogerborg]

Even if anyone has done the exact same mods on that bike (did you change the airbox for a harmonica?) their jetting solution wouldn't necessarily work for you.

Carb jetting is an empirical art. You'll need to find out what jet is already in there and try a few variants. It's likely to be a 90, 95 or 100, and if (and it's a big if) you've improved the flow, then you'll probably want to go up 5, or possibly 10.

However, what I'd suggest that you do is to put it back to stock. Whenever I did that to my 125, it ran better. Don't bin any parts.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[calvert]

thank you here are links to my carb and air filter the bike runs ok but can do the odd popping noise.

https://www.ebay.co.uk/itm/Mikuni-Carburettor-CARB-CARBY-for-KEEWAY-TX125-TX-125-NEW-PART-UK-SELLER-/122089042766?hash=item1c6d12f34e:g:deIAAOSwkl5Xenpw


https://www.ebay.co.uk/itm/48mm-Air-Filter-Carbon-Fiber-For-140cc-150cc-160cc-250cc-Honda-Suzuki-Kawasaki-/152079726115?hash=item2368a87623:g:2IAAAOSwnHZYbKHE
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sean c