Related Manuals for Parsun F25/20BM
Summary of Contents for Parsun F25/20BM
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Page 1: Outboard Motor
OUTBOARD MOTOR OWNER’S MANUAL F25/20BM F25/20BW F25/20FW SUZHOU PARSUN POWER MACHINE CO., LTD... - Page 2 Thank you for owning a PARSUN outboard motor. Thank you for your trust in our company and products. “PARSUN” outboard motors are powerful, economic and safe, manufactured with advanced technology. Please read this manual carefully before operating your outboard motor.
- Page 3 Engine Identification Numbers Outboard motor serial number The outboard motor serial number is marked on the label. The label can be found on the bracket left assembly or on the upper part of the bracket swivel. Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your dealer or for reference in case your outboard motor is stolen.
- Page 4 Manufacturer’s Declaration This outboard motor complies with the requirements of Directive 2003/44/EC in relation to the exhaust and noise emissions. The following installation and maintenance instructions, if applied, guarantee that the outboard motor will remain in compliance with: 1. Exhaust emissions limits throughout the normal life or the engine (350 hours or 10 years, whichever occurs first) and under normal conditions of use.
- Page 5 MODEL MAIN JET PART NUMBER ALTITUDE Standard Main Jet H177-S F20/25 2000 Feet (609.6 Meters) Altitude Main Jet H177×1.08 WARNING Operating the engine with the wrong engine configuration at a given altitude may increase its emissions and decrease fuel efficiency and performance. When the carburetor has been modified for high altitude operation, the air-fuel mixture will be too lean for low altitude use.
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Page 6: Table Of Contents
Table of contents Main components and General information...................1 1.1. Main components........................1 1.2. General information........................2 1.2.1. Specification.........................2 1.2.2. Fueling instructions.......................3 1.2.3. Propeller selection........................4 Operation............................5 2.1. Installation..........................5 2.1.1. Mounting height........................5 2.1.2. Clamping the outboard motor....................6 2.2. Breaking in engine........................7 2.3. - Page 7 2.11. Trimming outboard motor......................26 2.12. Tilting up and down........................27 2.12.1. Tilting up..........................27 2.12.2. Tilting down.........................30 2.13. Cruising in other conditions....................31 2.13.1. Cruising in shallow water.....................31 2.13.2. Cruising in salt water......................32 Maintenance..........................33 3.1. Greasing..........................33 3.2. Cleaning and adjusting spark plug..................34 3.3. Checking fuel system......................34 Cleaning 3.3.1.
- Page 8 Checking top cowling......................42 3.12. Maintenance table.........................43 3.13. Transporting and storing outboard motor...................45 4.1. Transporting..........................45 4.2. Storing.............................46 Action in emergency........................48 5.1. Impact damage........................48 5.2. Starter will not operate......................48 5.3. Treatment of submerged motor....................50 Troubleshooting...........................51 Circuit diagram..........................55...
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Page 9: Main Components And General Information
1. Main components and General information 1.1 Main components 1. Top cowling 9. Clamp bracket 17. Throttle grip 2. Top cowling lock handle 10. Steering friction bolt 18. Clamp bolt 3. Drain screw 11. Tiller handle 19. Rope attachment 4. Anti-cavitation plate 12. -
Page 10: General Information
portable fuel tank includes parts as follows: 1. Fuel tank cap 3. Air vent screw 2. Fuel joint 4. Fuel gauge WARNING： The fuel tank supplier with this engine could only be used as supply of fuel for it’s running and must not be as a fuel storage container. -
Page 11: Fueling Instructions
Performance Items Data Items Data 18.4Kw/5500Rpm(25HP) Valve clearance 0.15～0.25mm Maximum output IN(cool engine) 14.7 Kw/5500Rpm(20HP) Valve clearance EX Spark plug gap 0.8～0.9mm 0.25～0.35mm (cold engine) Full throttle operating 5000～6000Rpm Spark plug 18.0Nm Tightening range torque for Idling speed (in Engine oil engine 975±50Rpm 28.0Nm... -
Page 12: Propeller Selection
“PARSUN”dealers stock a range of propellers and can advise you and install a propeller on your out board that is best suited to your application. -
Page 13: Operation
2. Operation 2.1 Installation Mount the outboard motor on the center line (keel line) of the boat. For boats without a keel or which are asymmetrical, consult your dealers. 1. Center line (keel line) NOTE ： During water testing check the buoyancy of the boat, at rest, with its maximum load. Check that the static water level on the exhaust housing is low enough to prevent water entry into the power head, when water rises due to waves when the outboard is not running. -
Page 14: Clamping The Outboard Motor
The optimum mounting height of the outboard motor is affected by the boat and motorcombination and the desired use. Test runs at a different height can help determine theoptimum mounting height. For further information, consult your “PARSUN” dealer or boat manufacturer. -
Page 15: Breaking In Engine
3. Secure the clamp bracket to the transom using the appropriate bolts. For details, consult your PARSUN dealer. ： WARNING Avoid using bolts, nuts or washers inappropriate. After tightening, test running the engine and check their tightness. -
Page 16: Pre-Operation Checks
For the second hour of operation: Run the engine at3000 r/min or at approximately three-quarter throttle. For the next eight hours of operation: Avoid continuous operation at full throttle for more than five minutes at a time. Operate the engine normally. 2.3 Pre-operation checks Fuel ·Check to be sure you have plenty of fuel for your trip. - Page 17 Checking the engine oil level 1. Put the outboard motor in an upright position (not tilted). 2. Check the oil level using the dipstick to be sure the level falls between the upper and lower marks. Fill with oil if it is below the lower mark, or drain to the specified level if it is above the upper mark. １．...
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Page 18: Filling Fuel
2. Carefully fill the fuel tank. Securely close the cap after filling the tank. Wipe up any spilled fuel. 2.5 Starting engine For F25/20BM 1. Connect fuel joints securely after loosing the air vent screw on the fuel tank cap (2 or 3 turns). - Page 19 2. Connect fuel joints securely and squeeze the primer pump with the outlet end up until you feel it become firm (if equipped the fuel joint). Place the gear shift lever in neutral. NOTE: The start-in-gear protection device prevents the engine from starting except when in neutral. Attach the engine stop switch lanyard to secure place on your clothing, or your arm or leg.
- Page 20 could become entangled and preventing it from functioning · Avoid accidentally pulling the lanyard during normal operation. Loss of engine power means the loss of steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. 4.
- Page 21 6. After the engine starts, slowly return the manual starter handle to its original position before releasing it. 7. Slowly return the throttle grip to the fully closed position. CAUTION · When the engine is cold, it needs to be warmed up. ·...
- Page 22 Place the remote control lever in neutral. Note: The start-in-gear protection device prevents the engine from starting except when in neutral. Attach the engine stop switch lanyard to secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the engine stop switch.
- Page 23 4. Place the throttle grip in the “START”(start)position. Turn the main switch to “ON”(on). START 5．Turn the main switch to “START”(start), and hold it for a maximum or 5 seconds. START 6．After the engine starts, slowly return the manual starter handle to its original position before releasing it.
- Page 24 making it impossible to start the engine. The starter can also be damaged. If the engine will not start after 5 seconds of cranking, return the main switch to “ON”(on), wait 10 seconds,then crank the engine again. NOTE: When the engine is cold, it needs to be warmed up. ...
- Page 25 3. Place the remote control lever in neutral. NOTE: The start-in-gear protection device prevents the engine from starting except when in neutral. Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the engine stop switch.
- Page 26 NOTE: It is not necessary to use the choke when starting a warm engine. If the choke is left the home position while the engine is running, the engine will run poorly or stall. 6. Turn the main switch to “START” (start), and hold it for a maximum or 5 seconds. 7.
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Page 27: Warming Up Engine
· If water is not flowing out of the hole at all times while the engine is running, stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. · If the problem cannot be located and corrected, consult your PARSUN dealer. 2.7 Shifting WARNING: Before shifting, make sure there are no swimmers or obstacles in the water near you. -
Page 28: Forward
2.7.1 Forward 1. Place the throttle grip in the fully closed position. 2. Move the gear shift lever quickly and firmly from neutral to forward. For F25/20FW Pull up the neutral interlock rigger and move the remote control lever quickly and firmly from neutral to forward. -
Page 29: Reverse
2.7.2 Reverse WARNING: When operating in reverse, go slowly. Do not open the throttle more than half. Otherwise the boat could become unstable, which could result in loss of control and an accident. 1. Place the throttle trip in the fully closed position. 2. -
Page 30: Tiller
2. Pull up the neutral interlock rigger and move the remote control lever quickly and firmly from neutral to reverse. 2.8 Tiller For F25/20BM &F25/20BW 1. Change direction To change direction, move the tiller handle to the left or right as necessary. - Page 31 2. Change speed Turn the grip counterclockwise to increase speed and clockwise to decrease speed. 3. Throttle indicator The throttle indicator is on the throttle grip. The fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throttle position. Choose the setting that offers the best performance and fuel economy for the desired operation.
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Page 32: Trim Tab
If the boat tends to veer the left, turn the trim tab to the port side. If the boat tends to veer the right, turn the trim tab to the starboard side. 2.10 Stopping engine For F25/20BM & F25/20BW NOTE: Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stopping the engine immediately after operating at high speed is not recommended. - Page 33 2. Tighten the air vent screw on the fuel tank cap. 3. Disconnect the fuel line. For F25/20FW 1. Turn the main switch to “OFF” (off).
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Page 34: Trimming Outboard Motor
2. Tighten the air vent screw on the fuel tank cap. 3. Disconnect the fuel line. 2.11 Trimming outboard motor There are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim angle. 1. Stop the engine. 2. -
Page 35: Tilting Up And Down
Do not tilt up the engine by pushing the tiller handle because this could break the handle. The outboard motor cannot be tilted when in reverse. 2.12.1 Tilting up For F25/20BM & F25/20BW 1. Place the gear shift lever in neutral (if equipped). - Page 36 Tighten the steering friction adjuster by turning it clockwise to prevent the motor from turning freely. 3. Disconnect the fuel line from the outboard motor. Place the tilt lock lever (if equipped) in the up position.
- Page 37 5. Hold the rear handle and tilt the engine up fully until the tilt support lever automatically locks. For F25/20FW 1. Place the remoter control lever in neutral (if equipped). isconnect the fuel line from the outboard motor.
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Page 38: Tilting Down
4. Hold the rear handle and tilt the engine up fully until the tilt support lever automatically locks. 2.12.2 Tilting down For F25/20BM & F25/20BW 1. Slightly tilt the outboard motor up. 2. Slowly tilt the outboard motor down while... -
Page 39: Cruising In Other Conditions
3. Loose the steering friction adjuster by turning it counterclockwise, and adjust the steering friction according to operator preference. WARNING: If there is too much resistance it could be difficult to steer, which could result in an accident. For F25/20FW 1. -
Page 40: Cruising In Salt Water
Return the outboard motor to its normal position as soon as the boat is back in deeper water. CAUTION: The cooling water inlet on the lower unit should be not above the surface of the water when setting up for and cruising in shallow water. Otherwise severe damage from overheating can result. -
Page 41: Maintenance
If you or the owner is not familiar with machine servicing, this work should be done by your PARSUN dealer or other qualified mechanic. CAUTION: If replacement parts are necessary, use only genuine PARSUN parts or parts of the same type and of equivalent strength and materials. 3.1 Greasing... -
Page 42: Cleaning And Adjusting Spark Plug
3.3 Checking the fuel system Check the fuel lines for leaks, crack, or malfunction. If a problem is found, your PARSUN dealer or other qualified mechanic should repair it immediately. -
Page 43: Cleaning Fuel Filter
2. Check the fuel filter periodically. If foreign matter is found in the filter, clean it. 3.3.1 Cleaning the fuel filter 1. Removing the nut holding the fuel filter assembly if equipped. 2. Unscrew the filter cup, catching any spilled fuel in a rag. 3 . -
Page 44: Inspecting Idling Speed
Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up fully, the idle speed will measure higher than normal. If you have difficultyverifying the idle speed, or the idle speed requires adjustment, consult a PARSUN dealer or other qualified mechanic. -
Page 45: Changing Engine Oil
3.5 Changing engine oil WARNING: Avoid draining the engine oil immediately after stopping the engine. The oil is hot andshould be handled with care to avoid burns. Be sure the outboard motor is securely fastened to the transom or a stable stand. CAUTION: Change the engine oil after the first 10 hours of operation, and every 100 hours or at 6-month intervals thereafter. -
Page 46: Checking Wiring And Connectors
Check that no exhaust or water leaks from the joints between the exhaust cover, cylinder head, and body cylinder. Check for oil leaks on the around the engine. CAUTION: If any leaks are found, consult your PARSUN dealer. 3.8 Checking propeller WARNING: ... -
Page 47: Removing The Propeller
Do not use your hand to hold the propeller when loosening or tightening the propeller nut. Put a wood block between the anti-cavitation plate and the propeller to prevent the propeller from turning. 1. Check each of the propeller blades for wear, erosion from cavitation or ventilation, or other damage. 2. -
Page 48: Installing The Propeller
3.8.2 Installing the propeller CAUTION: Be sure to install the thrust washer before instating the propeller, otherwise the lower case and propeller boss could be damaged. Be sure to use a new cotter pin and bend the ends over securely. Otherwise the propeller could come off during operation and be lost. -
Page 49: Cleaning Fuel Tank
Inspect the used oil after it has been drained. If the oil is milky, water is getting into thegear case which can cause gear damage. Consult PARSUN dealer. 5. Use a flexible or pressurized filling device, inject the gear oil into the gear oil drain screw ）... -
Page 50: Checking And Replacing Anode(S)
3.11 Checking and replacing anode(s) Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a PARSUN dealer for replacement of external anodes. CAUTION: Do not paint anodes, as this would render them ineffective and can cause more rapid engine corrosion. -
Page 51: Maintenance Table
Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines. The “●” symbol indicates the check-ups which you may carry out by yourself. The “○” symbol indicates work to be carried out by your Parsun dealer. Initial Every... - Page 52 Continuation /…1 Initial Every Item Operations 10 hours 50 hours 100 hours 200 hours ( 1 month ) ( 3 months ) ( 6 months ) ( 1 year ) Throttle link/throttle Check/ ○ cable/Throttle pick-up adjustment timing ○ Water pump Check Check/ ●...
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Page 53: Transporting And Storing Outboard Motor
4 Transporting and storing 4.1 Transporting The outboard motor should be trailed and stored in the normal running position. If there is insufficient road clearance in this position, then trailer the outboard motor in the tilt position using a motor support device. CAUTION: Do not use the tilt support lever or knob when trailering the boat. -
Page 54: Storing
It is advisable to have your outboard motor serviced by an authorized PARSUN dealer prior to storage. However, you, the owner, with a minimum of tools, can perform the following procedures. - Page 55 6. Start the engine. Flush the cooling system. Perform the flushing and fogging at the same time, as fogging/lubricating of the engine is mandatory to prevent engine rust. WARNING: Do not touch or remove electrical parts when starting or during the operation. ...
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Page 56: Action In Emergency
2. Inspect the control system and all components for damage. 3. Whether damage is found or not, return to the nearest harbor slowly and carefully. 4. Have a PARSUN dealer inspect the outboard motor before operating it again. 5.2 Starter will not operate If the starter mechanism does not operate, the engine can be started with an emergency starter rope. - Page 57 2. Remove the start-in-gear protection cable and the choke cable. 1. Start-in-gear protection cable ３. Remove the starter cover after removing the three bolts. Disconnect the leads for the warning indicator 4. Prepare the engine for starting. For further information, see section 2.5. 5.
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Page 58: Treatment Of Submerged Motor
7. Give a strong pull straight out to crank and start the engine. Repeat it necessary. 5.3 Treatment of submerged motor If the outboard is submerged, immediately take it to a PARSUN dealer. Otherwise some corrosion may begin almost immediately. -
Page 59: Troubleshooting
6. Troubleshooting Trouble type Possible reason Recovery action Starter components are faulty Have serviced by your dealer Starter will not operate Shift level is not in neutral Shift to neutral Fuel tank is empty Fill tank with clean, fresh fuel Fuel is contaminated or stale Fill tank with clean, fresh fuel Clean or replace with recommended... - Page 60 Continuation /…1 Trouble type Possible reason Recovery action Check for pinched or kinked fuel Fuel system is obstructed line or other obstructions in fuel system Fuel is contaminated or stale Fill tank with clean, fresh fuel Clean or replace with Fuel filter clogged recommended type Spark plug gap is incorrect...
- Page 61 Continuation /…2 Trouble type Possible reason Recovery action Propeller is damaged Repair or replace propeller Adjust trim angle to achieve most efficient Trim angle is incorrect operation Motor is mounted at incorrect transom height Adjust motor to proper transom height Boat bottom is fouled with marine growth Clean boat bottom Weeds or other foreign matter are tangled on...
- Page 62 Continuation /…3 Trouble type Possible reason Recovery action Thermostat is faulty or clogged Have serviced by your dealer Air vent screw on fuel tank is closed Open air vent screw Fuel pump has malfunctioned Have serviced by your dealer Engine power loss Fuel joint connection is incorrect Connect correctly Check and replace spark plug(s) as...
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Page 63: Circuit Diagram
R/W Red/White Engine stop switch Pink/White Valve Green/White Wiring harness Br/B Brown/Black Ignition coil B/W Black/White Br/B Y/RW Yellow Thermostat White Pulser coil Stator coil Pink Sump pressure switch Yellow/Red F25/20BM Orange CDI unit Yellow/Black DESCRIPTION Black S N . White/Green... - Page 64 Br L Y O B R / W R / W yellow orange yellow/red blue red/white green black brown white Fuse holder Earth Start solenoid High voltage bundle Start relay Touch off winding Sump pressure sensor Start electromotor commute manostat Amplidyne winding Electricize winding Spark plug...
- Page 65 Br L Y O B R / W R / W yellow orange yellow/red blue red/white green black brown white Fuse holder Earth Start solenoid High voltage bundle F25/20FW Start relay Accumulator Touch off winding Sump pressure sensor Start electromotor commute manostat Amplidyne winding Spark plug...
- Page 66 Remote control Switch yellow Ignition yellow/red Engine stop switch blue red/white Buzzer green black brown DESCRIPTION white...