These are the correct jets for Stage6 TM24 carburetors. To set the carb up you usually start with an overlarge mainjet. This will cause the engine to missfire (fourstroke) on full throttle. You then gradually decrease the mainjet in size (in steps of 5) untill the engine starts running properly. Finetuning is then achieved by juggling around with the in-between sizes. Be carefull: too small a mainjet will result in a lean mixture and piston seizures.
Be careful: these jets are only for Stage6 TM24. For Mikuni TM24, you will need Mikuni TM24 mainjets!!!