Amal premier pilot jet. g. Size 17 is equivalent to a traditional 25, Size 19 is equivalent to a traditional 30, or Size 21 is equivalent to a traditional 35. The jet is is intended to be screwed firmly into the carburetter. 019″ pilot jet (622/502-19) works best. ) Amal Monobloc Pilot Jet All genuine AMAL jets are calibrated to a flow rate. If you find you need a leaner fuel mixture at idle, this Wassell Replacement Pilot Jet for all Amal Premier Series Concentric Carbs (including Amal 626 26mm, 928 28mm, 930 30mm & 932 32mm Premiers) will fit the bill. ) 2 Rings - AM/622/502/17 (Equivalent to 25 Pilot Jet in pre-Premier carbs. . ) Feb 27, 2024 ยท The original Amal Mk1 Concentric didn't have a choice of pilot jests on 4-stroke applications, just a fixed brass bash buried deep inside. The jet, which is located in the opposite position to the pilot air screw, is manufactured to tight tolerances allowing it to be replaced with minimum disruption to the adjustment of the carburetter.
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