Yamaha SX150B Owner's Manual

Contents

EEMU00186FILLING FUELAND ENGINE OILEMU01031FILLING FUEL1) Remove the fuel tank cap.2) Fill the fuel tank carefully.3) Close the cap securely after refueling.Wipe up any spilled fuel.EMU01019Ring Free Fuel AdditiveGasoline is a precise blend of many differ-ent substances, each chosen to give cer-tain characteristics. Gasoline blends havebeen changing in recent years inresponse to concerns about pollution andresulting emissions regulations. One ofthe most obvious changes has been theelimination of lead from most fuels.As gasoline has changed, the amount ofadditives such as aromatics and oxy-genates has increased. These additivesare important for the engines in passen-ger cars, but they can have detrimentaleffects in marine engines, because ofincreased deposits in the combustionchamber. When enough deposits collect,piston rings begin sticking. Performancedrops and engine wear increases dramati-cally.While many additives available mayreduce deposits, Yamaha recommendsthe use of Ring Free Fuel Additive, avail-able from your Yamaha dealer. Ring Freehas repeatedly proven its ability to cleancombustion deposits from inside theengine, notably the critical piston-ring-land area, and fuel system components.Follow product labeling for use instruc-tions.3-4