Yamaha F40H Owner's Manual

Also see for F40G: Owner's manual

Operation59Bow DownToo much trim-in causes the boat to “plow”through the water, decreasing fuel economyand making it hard to increase speed. Oper-ating with excessive trim-in at higher speedsalso makes the boat unstable. Resistance atthe bow is greatly increased, heightening thedanger of “bow steering” and making opera-tion difficult and dangerous.TIP:Depending on the type of boat, the outboardmotor trim angle may have little effect on thetrim of the boat when operating.EMU27936Tilting up and downIf the engine will be stopped for some time orif the boat is moored in shallows, the out-board motor should be tilted up to protect thepropeller and lower casing from damage bycollision with obstructions, and also to re-duce salt corrosion.EWM00223Make sure that no one is near the out-board motor when tilting the outboardmotor up or down. Otherwise, body partscould be crushed between the outboardmotor and the clamp bracket.EWM00251Leaking fuel is a fire hazard. If there is afuel joint on the outboard motor, discon-nect the fuel line or close the fuel cock ifthe engine will be tilted for more than afew minutes. Otherwise fuel may leak.ECM00242 Before tilting the outboard motor, stopthe engine by following the procedureon page 55. Never tilt the outboard mo-tor while the engine is running. Severedamage from overheating can result. Do not tilt up the engine by pushing thetiller handle (if equipped) because thiscould break the handle.EMU2799AProcedure for tilting up (hydro tiltmodels)(1) Place the remote control lever / gearshift lever in neutral.