Yamaha F75D Ower's Manual

Contents

Operation26EMU27270Ring Free Fuel AdditiveGasoline is a precise blend of many differentsubstances, each chosen to give certain char-acteristics. Gasoline blends have beenchanging in recent years in response to con-cerns about pollution and resulting emissionsregulations. One of the most obvious changeshas been the elimination of lead from most fu-els.As gasoline has changed, the amount of addi-tives such as aromatics and oxygenates hasincreased. These additives are important forthe engines in passenger cars, but they canhave detrimental effects in marine engines,because of increased deposits in the combus-tion chamber. When enough deposits collect,piston rings begin sticking. Performancedrops and engine wear increases dramatical-ly.While many additives available may reducedeposits, Yamaha recommends the use ofRing Free Fuel Additive, available from yourYamaha dealer. Ring Free Fuel Additivehas repeatedly proven its ability to clean com-bustion deposits from inside the engine, nota-bly the critical piston-ring-land area, and fuelsystem components. Follow product labelingfor use instructions.EMU27450Operating engineEMU27480Feeding fuelWARNINGEWM00420 Before starting the engine, make surethat the boat is tightly moored and thatyou can steer clear of any obstructions.Be sure there are no swimmers in thewater near you. When the air vent screw is loosened,gasoline vapor will be released. Gaso-line is highly flammable, and its vaporsare flammable and explosive. Refrainfrom smoking, and keep away fromopen flames and sparks while looseningthe air vent screw. This product emits exhaust gases whichcontain carbon monoxide, a colorless,odorless gas which could cause braindamage or death when inhaled. Symp-toms include nausea, dizziness, anddrowsiness. Keep cockpit and cabin ar-eas well ventilated. Avoid blocking ex-haust outlets.1. If there is an air vent screw on the fueltank cap, loosen it 2 or 3 turns.2. If there is a fuel joint or a fuel cock on theboat, firmly connect the fuel line to thejoint or open the fuel cock.3. Squeeze the primer pump with the outletend up until you feel it become firm.EMU27490Starting engineEMU27624Electric start and remote control models1. Place the remote control lever in “ ”(neutral).NOTE:The start-in-gear protection device preventsthe engine from starting except when in neu-tral.