The BEST Japanese Trick to Fine-Tune Idle Mixture Screws on Your Carburetor

📘 The Japanese Art of Motorcycle Care – Three books, and Volume Two has a whole part on the idle screw: https://japanbikefix.com?src=desc 🏍️ The Japanese Bike Mechanic Membership – A new shop letter in your inbox each week: https://join.japanbikefix.com Business inquiries: business@japanbikefix.com An idle that dips and surges at a stop sign rarely needs a carburetor rebuild. Often it only needs one small brass screw, set the way a 1982 Honda service manual spells it out: • Out is richer, in is leaner, and what summer E15 changes • Finding where your screw sits now, with a tape flag • The lean drop method, and a broom handle for older ears • Honda's Idle Drop Procedure: in until the idle falls 50 RPM • When a buried screw or several carburetors need a good mechanic With the engine cold, count your pilot screw gently in to its seat, write the number in your notebook, and turn it back out to that same count. Then answer in the comments: was it CLOSE to the number in your manual, or FAR from it? Put the make and year of your bike next to it. Jiro #carburetortuning #idlemixture #motorcycle #thejapanesebikemechanic