These are wear items, and when worn severely affect both performance and economy. Don't leave this part of your carburettor(s) to chance, renew and be sure these parts are not stopping the carburettor functioning correctly. You can find all of these carburettor service items on our online catalogue for your model, or the online 'parts list' fiche. Remember, the more you order at any one time, the lower the overall shipping costs.