Yamaha 40V Owner's Manual

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Contents

Yamaha 40V Owner's Manual Manual pdf 19 page image

Specifications and requirements13EMU25770Start-in-gear protectionYamaha outboard motors or Yamaha-ap-proved remote control units are equippedwith start-in-gear protection device(s). Thisfeature permits the engine to be started onlywhen it is in neutral. Always select neutralbefore starting the engine.EMU25651Engine oil requirementsIf the recommended engine oil is not avail-able, another 2-stroke engine oil with anNMMA-certified TC-W3 rating may be used.EMU36360Fuel requirementsEMU36770GasolineUse a good quality gasoline that meets theminimum octane rating. If knocking or ping-ing occurs, use a different brand of gasolineor premium unleaded fuel. Yamaha re-comends that you use alcohol-free (seeGasohol) gasoline whenever possible.NOTICEECM01980● Do not use leaded gasoline. Leadedgasoline can seriously damage the en-gine.● Avoid getting water and contaminantsin the fuel tank. Contaminated fuel cancause poor performance or enginedamage. Use only fresh gasoline thathas been stored in clean containers.GasoholThere are two types of gasohol: gasohol con-taining ethanol (E10) and that containingmethanol. Ethanol can be used if the ethanolcontent does not exceed 10% and the fuelmeets the minimum octane ratings. All etha-nol blends containing more than 10% etha-nol can cause fuel system damage or causeengine starting and running problems.Yamaha does not recommend gasohol con-taining methanol because it can cause fuelsystem damage or engine performanceproblems.EMU36880Muddy or acidic waterYamaha strongly recommends that you haveyour dealer install the optional chromium-plated water pump kit if you use the outboardmotor in muddy or acidic water conditions.However, depending on the model it mightnot be required.EMU36330Anti-fouling paintA clean hull improves boat performance. Theboat bottom should be kept as clean of ma-rine growth as possible. If necessary, theboat bottom can be coated with an anti-foul-ing paint approved for your area to inhibitmarine growth.Do not use anti-fouling paint which includescopper or graphite. These paints can causemore rapid engine corrosion.Recommended engine oil:YAMALUBE 2-stroke outboard motoroilRecommended gasoline:Regular unleaded gasoline