Product Description Mikuni Long Idle Adjusting Screw For Hsr42 Carburetor Features Standard equipment on all the Mikuni HSR series carbs Plastic thumb wheel for easy adjusting Genuine Mikuni piece Mikuni Long Idle Adjusting Screw For HSR42 Carburetor at RevZilla Browse all RevZilla deals $16.95 In Stock at RevZilla Price checked 7 days ago Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Mikuni Size OS Condition New MPN 3042-0153 Mikuni