Carb tuning

[Spark9890]

I bought a set of jets (3rd pic) to prevent my 80cc 2-stroke from 4 stroking, but they didn't fit in my nt carb (2nd pic), the 1st pic attached is the jet that was already in my carb, anyone know where I could get a set of jets that fits my existing carb or even a carb that fits the new set of jets I bought? Any help is greatly appreciated, thanks.

 

[DAMIEN1307]

but they didn't fit in my nt carb (2nd pic), the 1st pic attached is the jet that was already in my carb, anyone know where I could get a set of jets that fits my existing carb or even a carb that fits the new set of jets I bought? Any help is greatly appreciated, thanks.

That would be because that is NOT an NT carburetor your trying to fit that jet into...lol.

That is a JRL BoFeng Carburetor you have there, the successor to the old style NT and much better than an NT as well...lol.

Here are the jets that will fit that carburetor.

Genuine Keihin air jet 99101-124 and 99101-ZF5 - Jets R Us

Keep in mind that a little bit of four stroking is necessary and desirable as it means extra lubrication which also means extra cooling at the same time.