The idle jet primarily influences the lower and middle rev range. If the scooter runs noisily on idling mix this can be eliminated throug the selection of an appropriate idle jet.
Therefore we stock KOSO idle jets for KOSO/KEIHIN/PWK carburettors in a set of ten pieces (35-58). With this set you can go sure that you have the right jet on hand while adjusting your carburettor.
Conclusion: Indispensable for a precise tuning of the idle running setting.
SIP-TIP: For optimum care, clean the carburettor with carburettor cleaner (part no 55034000) on a regular basis.
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