Nozzles came well described to the set from top perf 74 perfect nozzle 80 on dellorto phbg 21 carburetor and to this 4-5 turns of the knob from the mixture composition and on the candle perfect coffee with milk I recommend
A very cost-effective set of nozzles for adjustment. The only downside to these nozzles is the incorrect location of the nozzle size marking. On one piece the size was not written at all.
I own a WSK 125 motorcycle to which I used a Dolerto phbg carburetor where the shit nozzle has been changed the motorcycle runs flawlessly where I am satisfied.
Yamaha XVS125 from 2001. The nozzles ordered are from a different model and I was aware that they would need to be matched. The price is 1/10 the price of the original :-) I recommend