Mikuni Carburetor 44pc Jet Assortment Kit Mikuni HSR42 for Harley Davidson. Orders can NOT be changed, altered or canceled. MIKUNI HSR42 ASSORTED JET KIT. HSR42 kit includes 150 through 170 main jets (2 each); 22.5 through 35 pilot jets (2 each); -96, -97 and -98 needles (1 each); 2 #60 a/p nozzles; needle clip; all necessary washers, special jet box.