Processing customization is the purpose of carburetor idle jet hole size 10-37.5 32.5-60 (mm) model idle speed jet hole VM28/486 applicable model 604-26014 Harley Davidson article number SCL-2022120051 specification 12PCS (10-37.5), 12PCS (32.5- 60) Compatible with Mikuni HS40, HSR42/45/48, RS34-RS40 Compatible with TM33, TM36 TM40 Compatible with VM28/486 Product name: 12 pieces of Brass Pilot Jet Replacement for Pilot Jets Slow Jet Fit for Mikuni Carb VM28 /486 Retrofitted main nozzle and main measuring hole Product details: Copper Weight: 90g Bag 8*5cm Specifications: *New Pilot Jets /Slow Jet #10-#60 *100% brand new and high quality *Made of high quality Metalmaterial, durable and practical to use *Easy to use and durable *Fit for Mikuni Carb VM28 / 486 *Size: 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30, 32.5, 35, 37.5, 40, 42.5, 45 , 47.5, 50, 52.5, 55, 57.5, 60, *Total length: 28mm *Thread size: M4.0x0.7mm *Color: Gloden(As pictures show)