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 J&P Cycles Browse all J&P Cycles deals $16.95 In Stock at J&P Cycles Price checked 7 days ago Buy Now at J&P Cycles Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Mikuni Size OS Condition New MPN 3042-0153 Mikuni