Honda 99 Outboard Owners Manual
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SERVICING YOUR HONDA OUTBOARD MOTOR If no oil flows from the oil level hole, add the recommended oil following the procedure described in Gear Oil Change. Gear Oil Change Change the gear oil with the engine stopped and the outboard motor in the vertical position. Place suitable container below the oil drain hole to catch the used oil, then remove the oil level plug, and oil drain plug. Remove any metal particles from the magnetic end of the oil drain plug. 3. Allow the used oil to drain completely, then install an oil pump adapter in the oil drain hole. If water or contaminated (milky- colored) oil flows out the drain hole when the plug is removed, have the outboard motor checked by and authorized Honda Marine dealer. 59
SERVICING YOUR HONDA OUTBOARD MOTOR GEAR OIL BOTTLE 4. Add oil through the oil drain hole until it flows out the oil lcvcl hole, then install the oil level plug and the oil drain plug. GEAR OIL CAPACITY: 0.301 US qt (2X5 cm3) Outboard motor SAE 00 hypoid gear oil API Service classification (GL-4 or GL-5). OIL LEVEL PLUG & VENT PLUG TORQUE: 2.5 R-lb (3.5 N-m, 0.35 kg-m) Avoid losing more than I fl oz (30~~) while reinstalling the drain plug. OIL DRAIN PLUG TORQUE: 2.5 ft-lb (3.5 N-m, 0.35 kg-m)
SERVICING YOUR HONDA OUTBOARD MOTOR TILLER HANDLE THROTTLE REEL TILT STOPPER Lubrication Points Wipe the outside of the engine with a cloth dipped in oil. > Apply marine anticorrosion grease to the following parts: lubrication, then every 20 hours or a month after the date of purchase for initial 100 hours or 6 months. ---I I I- u INOT’CEI Apply anticorrosion oil to pivot surfaces whrere grease cannot penetrate. SWlVEL CASE PROPELLER SHAFT Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover except the belts. 61
SERVICING YOUR HONDA OUTBOARD MOTOR Spark Plug Service RECOMMENDED SPARK PLUGS: CRSEH-9 (NGK) U I6FER9 (DENSO) t 1 Incorrect spark plugs can cause engine damage. Unlatch and remove the engine cover (P.55). Disconnect the spark plug caps from the spark plugs. Remove the spark plugs with a spark plug wrench and screwdriver supplied in the tool kit. 4. Inspect the spark plugs. Replace them if the electrodes are worn, or if the insulators arc cracked or chipped. Clean the spark plugs with a wire brush if you are going to reuse them. 5. 0.8 - 0.90 mm (0.031 - 0.035 in) Measure the spark plug electrode gap with a suitable gauge. The gap should be 0.03 1 - 0.035 inches (0.80 - 0.90 mm).
SERVICING YOUR HONDA OUTBOARD MOTOR 6. Install the spark plugs carefully, by hand, to avoid cross-threading. 7. 8. 9. After each spark plug seats, tighten with a spark plug wrench supplied in the tool kit to compress the sealing washer. If reinstalling the used spark plugs, tighten l/8 - l/4 turn after the spark plugs seat. If reinstalling new spark plugs, tighten l/2 turn after the spark plugs seat. Loose spark plugs can over heat and damage the engine. Overtightening the spark plugs can damage the threads in the cylinder head. Attach the spark plug caps. Install and lock the engine cover. 63
SERVICING YOUR HONDA OUTBOARD MOTOR REFUELING Portable Fuel Tank (optional equipment) FUEL TANK CAPACITY: 3.2 US gal ( 12.0 t ) Check the fuel gauge and refill the tank when necessary. Remove the fuel tank from the boat for refueling. OPEN To refuel, turn the vent knob counterclockwise to the OPEN position, and unscrew the fuel tank cap FUELGAUGE Refuel in a well-ventilated area. Fill the tank to the SAFE FILL LEVEL lint. After refueling, install the cap and tighten it securely. Turn the vent knob clockwise to the CLOSED position, and rctum the fuel tank to the boat. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. l Stop the engine and keep heat, sparks, and flame away. l Handle fuel only outdoors. l Wipe up spills immediately. Never refill the fuel tank inside a building where gasoline fumes may reach flames or sparks. Keep gasoline away from appliance pilot lights, barbecues, electric appliances. power tools, etc. Spilled fuel is not only a fire hazard, it causes environmental damage. Wipe up spills immediately.
SERVICING YOUR HONDA OUTBOARD MOTOR FUEL RECOMMENDATIONS Use unleaded gasoline with a pump octane rating of 86 or higher. These outboard motors are certified to operate on unleaded gasoline. Unleaded gasoline produces fewer engine and spark plug deposits and extends exhaust system life. Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the fuel tank. Occasionally you may hear a light “spark knock” or “pinging” (metallic rapping noise) while operating under heavy loads. This is no cause for concern. If spark knock or pinging occurs at a steady engine speed, under normal load, change brands of gasoline. If spark knock or pinging persists, see an authorized Honda marine dealer. piq Running the engine with persistent spark knock or pinging can cause engine damage. Running the engine with persistent spark knock or pinging is misuse, and the Distributor ? Limited Warranty does not cover parts damaged by misuse. Fuel Pump Filter Inspection and Replacement The fuel pump filter is located under the engine cover, on the right side of the engine. Water or sediment accumulated in the filter can cause loss of power or hard starting. To prevent engine malfunction, inspect the filter and replace when necessary. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel. l Stop the engine and keep heat, sparks, and flame away. l Handle fuel only outdoors. l Wipe up spills immediately. 65
SERVICING YOUR HONDA OUTBOARID MOTOR ENGINE COVEk LATCii ’ I Unlatch and remove the engine cover for access to the fuel pump filter. FUEL FILTER 2. Inspect the filter for water and/or sediment accumulation. If the filter is OK, reinstall it. If water and/or sediment are prcscnt, replace the filter as dcscribcd in the following steps. Always replace the filter at the scheduled replacement interval (p.54). 3. Disconnect the fuel hose from the outboard motor, and place clamps on the fuel hoses on each side of the filter to prevent fuel leakage when the fuel hoses are disconnected. FUEL HOSE 4. Remove the fuel tubes from the used filter, and discard the filter. To ease tube removal, rcleasc the tube clips by squeezing the clip ends together with pliers while pulling off the tubes. 66
SERVICING YOUR HONDA OUTBOARD MOTOR . . ARROW (Fuel Flow Direction) Install the new filter on the fuel hoses, with the fuel flow arrow pointing toward the fuel pump as shown. Fuel flow will be impeded if the filter is installed backward. Remove the fuel tube clamps, and connect the fuel hose to the outboard motor. Check for leaks. Install and lock the engine cover. Portable Fuel Tank and Filter Cleaning Fuel Tank Empty the portable fuel tank into an approved gasoline container. Use a funnel to avoid spilling fuel. Rinse the fuel tank with nonflammable solvent to remove any accumulated sediment. Fuel Tank Filter TANK FILTER JOINT I Connector) Unscrew the fuel hose connector by turning it counterclockwise, then remove the fuel hose connector and fuel filter from the tank. Clean the filter in nonflammable solvent. Inspect the fuel tank filter and the connector O-ring. Replace them if damaged. Reinstall the filter and hose connector in the fuel tank. Tighten the hose connector securely. 67
SERVICING YOUR HONDA OUTBOARD MOTOR - Recoil Starter Rope Inspection RECOIL STARTER ROPE Inspect the recoil starter rope, and replace it if it becomes frayed. Always keep the emergency starter rope on the boat in cast the recoil starter rope fails. Anoed Replacement The anodes are located on each side of the gearcase. They are made of a sacrificial material that helps to protect the outboard motor from corrosion. Replace the anodes when they have been reduced to about half their original size, or if they are crumbling. lNoTlCEl I I Painting or coating the anodes will defeat their purpose and will lead to rust and corrosion damuge to the outboard motor. The anodes must be exposed to the water in order to protect the outboard motor: