Check carefully it should take a threaded needle to meter the accelerator . Also the commercial leather seals did not seal well for me . Better to make your own . If i remember used 1-1/2" OD fender washer as guide to cut out and then used on piston to push into pill bottle to see how it fit . The bottle has a taper to help start and be cut off and used to guide into carb . Must also lube well to help shape .
