1. COMMON MODEL INFORMATION TYPICAL PROPELLER INSTALLATION Keep boat bottom clean of shells, algae growth and dirt. Accumulation causes a significant drop in top speed. Propeller Selection Precautions See PARTS LISTING section in applicable outboard model-family chapter for propeller parts information. Turn ignition key to OFF position and remove the emergency stop switch lanyard and clip to prevent the engine from starting accidentally. Wear heavy gloves to protect your hands from sharp or nicked propeller blades. Propeller Test Reports are available on the iN by clicking on Information Library\Service\Prop Tests. The outboard motor must be installed vertically in relation to boat bottom.
Set moderate trim angle, and adjust power trim angle to lowest setting. BF40NBF50A SHOWN Set trim tab so boat will run in a straight line. When doing propeller checks, select a calm day with little wave action. Avoid strong winds. Wind speed should be less than 10 mph (15 km/h). The boat should carry its average load (crew, load arrangement, ballast) and be balanced, fore to aft, in this loaded condition. Select the correct propeller so full throttle engine speed is within the recommended range. If engine speed is under the recommended speed range, or over the recommended speed range, select a propeller with a lower (finer) pitch or a higher (coarser) pitch, respectively.
If the following conditions exist, acceleration will improve and outboard motor service life will increase by lowering the propeller pitch: - heavy loads such as crew, load, equipment, GEAR CASE SIDE PROPELLER etc. 1. Apply marine grease to the propeller shaft and thrust washer taper. 2. Install the thrust washer and the propeller on the propeller shaft. - high temperatures and high humidity - when operating at high altitudes - when boat bottom needs cleaning - when area around gear case is obstructed conditions I NOTICE I If full throttle engine speed exceeds the recommended range, it can cause increased vibration, noise, reduced boat performance, poor fuel economy and possible engine wear.
recommended range, it indicates that the engine is being overloaded. If full throttle engine speed is below PROPELLER NUT COlTER PIN 3. Install the washer and propeller nut. Date of Issue: June 2003 0 2001-2003 American Honda Motor Co., Inc. I 142