Parsun F25/20BM Owner'S Manual Download Page 10

Page: 10 / 66

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.

1.2

General information

1.2.1Specification

Main technical data

Items

Data

Items

Data

Type of engine

4-stroke L

Weight (L/S/WL/WS)

68Kg/66Kg/70Kg/68Kg

Displacement

498cm

Recommended fuel

Unleaded regular gasoline

Bore X stroke

65mm

75mm

Fuel tank capacity

24L

Gear ratio

2.08

（

27/13

）

Recommended engine oil

SAE10W30 or SAE10W40

Overall length

1151mm

Engine oil quantity

1.7L

Overall width

430mm

Recommended gear oil

Hypoid gear oil SAE

﹟

Overall height (L/S)

1280mm/1153mm

Gear oil quantity

320cm

Transom height (L/S)

508mm/381mm

Spark plug

DPR6EA-9

Summary of Contents for F25/20BM

Page 1: ...OUTBOARD MOTOR OWNER S MANUAL F25 20BM F25 20BW F25 20FW SUZHOU PARSUN POWER MACHINE CO LTD...

Page 2: ...ce and care This will ensure that your outboard motor operates well under all conditions PARSUN seeks continuous improvement in product quality Therefore while this manual contains the most current pr...

Page 3: ...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 1 Ou...

Page 4: ...t sea level Engine power is reduced as the air mass and air fuel ratio decrease Outboard motor output will be reduced This is a natural trend and cannot be changed by adjusting the engine At sufficien...

Page 5: ...nd 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 Operation at altitudes below 60...

Page 6: ...tions 3 1 2 3 Propeller selection 4 2 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 Pre operation Checks 8 2 4 Filling fuel 10...

Page 7: ...e 33 3 1 Greasing 33 3 2 Cleaning and adjusting spark plug 34 3 3 Checking fuel system 34 3 3 1 Cleaning fuel filter 35 3 4 Inspecting idling speed 36 3 5 Changing engine oil 37 3 6 Checking wiring an...

Page 8: ...table 43 4 Transporting and storing outboard motor 45 4 1 Transporting 45 4 2 Storing 46 5 Action in emergency 48 5 1 Impact damage 48 5 2 Starter will not operate 48 5 3 Treatment of submerged motor...

Page 9: ...ling lock handle 10 Steering friction bolt 18 Clamp bolt 3 Drain screw 11 Tiller handle 19 Rope attachment 4 Anti cavitation plate 12 Starters handle 20 Tilt lock lever 5 Trim tab 13 Warning indicator...

Page 10: ...nical data Items Data Items Data Type of engine 4 stroke L Weight L S WL WS 68Kg 66Kg 70Kg 68Kg Displacement 498cm 3 Recommended fuel Unleaded regular gasoline Bore X stroke 65mm 75mm Fuel tank capaci...

Page 11: ...unleaded gasoline If it is not available then premium gasoline If knocking or pinging occurs use a different brand of gasoline or premium unleaded fuel If leaded gasoline is usually used engine valve...

Page 12: ...evel before starting the engine CAUTION All 4 stroke engines are shipped from the factory without engine oil 1 2 3 Propeller selection The performance of your outboard motor will be critically affecte...

Page 13: ...not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat If the boat does not have a capacity plate consult the boat manufacturer Improper mounting...

Page 14: ...desired use Test runs at a different height can help determine theoptimum mounting height For further information consult your PARSUN dealer or boat manufacturer 2 1 2 Clamping the outboard motor 1 Ti...

Page 15: ...completely lost if it accidentally falls off the transom 3 Secure the clamp bracket to the transom using the appropriate bolts For details consult your PARSUN dealer WARNING Avoid using bolts nuts or...

Page 16: ...tight Be sure the fuel tank is positioned on a secure flat surface and that the fuel line is not twisted or flattened or likely to contact sharp objects Controls Check throttle shift and steering for...

Page 17: ...g 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 Oil dipstick 3 Low...

Page 18: ...arettes flames or other sources of ignition 1 Remove the fuel tank cap 2 Carefully fill the fuel tank 3 Securely close the cap after filling the tank Wipe up any spilled fuel 2 5 Starting engine For F...

Page 19: ...events 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 lan...

Page 20: ...oss 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 Place the throttle grip in the START start position...

Page 21: ...the engine does not start on the first try repeat the procedure If the engine fails to start after 4 or 5 tries open the throttle a small amount between 1 8 and 1 4 and try again For F25 20BW 1 Conne...

Page 22: ...ngine stop switch WARNING The engine must be starting in neutral otherwise damage starter and hazard can occur Do not attach the lanyard to clothing that could tear loose Do not route the lanyard wher...

Page 23: ...ion before releasing it Immediately after the engine starts release the main switch and allow it to return to ON on 7 Slowly return the throttle grip to the fully closed position NOTE Never turn the m...

Page 24: ...be warmed up If engine does not start on the first try repeat the procedure If the engine fails to start after 4 or 5 tries open the throttle a small amout between 1 8 and 1 4 and try again For F25 20...

Page 25: ...RNING Attach the engine stop switch lanyard to a secure place on your clothing or your arm or leg Do not attach the lanyard to clothing that could tear loose Do not route the lanyard where it could be...

Page 26: ...eturn to ON on CAUTION Never turn the main switch to START start while the engine is running Do not keep the starter motor turning for more than 5 seconds If the starter motor is turned continuously f...

Page 27: ...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...

Page 28: ...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...

Page 29: ...in loss of control and an accident 1 Place the throttle trip in the fully closed position 2 Move the gear shift lever quickly and firmly from neutral to reverse For F25 20FW WARNING When operating in...

Page 30: ...tion 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 th...

Page 31: ...consumed for each throttle position Choose the setting that offers the best performance and fuel economy for the desired operation 1 Throttle indicator 4 Throttle friction adjuster The throttle fricti...

Page 32: ...has been installed or replaced to be sure steering is correct Be sure you have tightened the bolt If the boat tends to veer the left turn the trim tab to the port side If the boat tends to veer the r...

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 25...

Page 34: ...connect 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 Remove the trim rod from the clamp b...

Page 35: ...control 2 12 Tilting up and down If the engine will be stopped for some time or if the boat is moored in shallows the outboard motor should be tilted up to protect the propeller and casing from damage...

Page 36: ...the steering friction adjuster by turning it clockwise to prevent the motor from turning freely 3 Disconnect the fuel line from the outboard motor 4 Place the tilt lock lever if equipped in the up po...

Page 37: ...ear 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 2 Disconnect the fuel line from the outbo...

Page 38: ...he 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...

Page 39: ...ock lever in the lock position 2 Slightly tilt the engine up until the tilt support bar is automatically released 3 Slightly tilt the engine up until the tilt support bar is automatically released 2 1...

Page 40: ...be not above the surface of the water when setting up for and cruising in shallow water Otherwise severe damage from overheating can result For tilting procedure see section 2 12 2 13 2 Cruising in sa...

Page 41: ...gine when you perform maintenance unless otherwise specified If you or the owner is not familiar with machine servicing this work should be done by your PARSUN dealer or other qualified mechanic CAUTI...

Page 42: ...ss gauge adjust the gap to specification if necessary When fitting the plug always clean the gasket surface and use a new gasket Wipe off any dirt from the threads and screw in the spark plug to the c...

Page 43: ...y if equipped 2 Unscrew the filter cup catching any spilled fuel in a rag 3 Remove the filter element and wash it in solvent Allow it to dry Inspect the filter element and O ring of the filter cup to...

Page 44: ...r this procedure Results may vary depending on whether testing is conducted with the flushing attachment in a test tank or with the outboard motor in the water 1 Start the engine and allow it to warm...

Page 45: ...10 hours of operation and every 100 hours or at 6 month intervals thereafter Otherwise the engine will wear quickly Change the engine oil when the oil is still warm 1 Put the outboard motor in an upri...

Page 46: ...heck that each grounding wire is properly secured and each connector is engaged securely 3 7 Checking for leakage Check that no exhaust or water leaks from the joints between the exhaust cover cylinde...

Page 47: ...osion from cavitation or ventilation or other damage 2 Check the propeller shaft for damage 3 Check the splines shear pin for wear or damage 4 Check for fish line tangled around the propeller shaft 5...

Page 48: ...the spacer if equipped and the washer 4 Tighten the propeller nut Align the propeller nut with the propeller shaft hole Insert a new cotter pin in the hole and bend the cotter pin ends 3 9 Changing ge...

Page 49: ...nject the gear oil into the gear oil drain screw hole 320cm3 6 When the oil begins to flow out of the oil level plug hole insert and tighten the oil level plug If necessary change the seal spacer 7 In...

Page 50: ...ng 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 a...

Page 51: ...he symbol indicates work to be carried out by your Parsun dealer Item Operations Initial Every 10 hours 1 month 50 hours 3 months 100 hours 6 months 200 hours 1 year Anode s external Check replacement...

Page 52: ...e Throttle pick up timing Check adjustment Water pump Check Engine oil Check replacement Oil filter Change Spark plug s Cleaning adjustment replacement Timing belt Check replacement Valve clearance OH...

Page 53: ...e outboard motorcould shake loose from the tilt support and fall WARNING Never get under the lower unit while it is tilted even if a motor support bar is used When transporting or storing the outboard...

Page 54: ...ht put it on a cushionafter draining the engine oil completely Do not place the outboard motor on its side before the cooling water has drained from it completely Store the outboard motor in a dry wel...

Page 55: ...minutes in neutral position 8 Just prior to turning off the engine quickly spray Fogging Oil alternately into each carburetor or the fogging hole of the silencer cover if equipped 9 If Fogging Oil is...

Page 56: ...an emergency and only to return to port for repairs When the emergency starter rope is used to start the engine the start in gear protection device does not operate Make sure the remote control lever...

Page 57: ...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 Insert the knotted end of the emergency...

Page 58: ...ith fresh water 2 Remove the spark plug s then face the spark plug hole downward to allow any mud or contaminants to drain 3 Drain the fuel from the carburetor fuel filter and fuel line Drain the engi...

Page 59: ...ave serviced by your dealer Spark plug s fouled or of incorrect type Inspect spark plug s Clean or replace with recommended type Spark plug cap s fitted incorrectly Check and re fit cap s Ignition wir...

Page 60: ...Tighten all loose connections Replace worn or broken wires Specified engine oil is not being used Check and replace oil as specified Thermostat is faulty or clogged Have serviced by your dealer Carbur...

Page 61: ...k plug s are fouled or incorrect type Inspect spark plug s Clean or replace with recommended type Fuel system is obstructed Check for pinched or kinked fuel line or other obstructions in fuel system F...

Page 62: ...tion is incorrect Connect correctly Specified spark plug s are not being used Check and replace spark plug s as specified Engine vibrates excessively Propeller is damaged Repair or replace propeller P...

Page 63: ...Black White Green Y R Y B W G Pink White Pink Yellow R W Red White P W Green White G W Br B Brown Black B W Black White Y White W Red R P Orange O Ignition coil CDI unit 1 2 3 4 5 7 Black B 10 6 7 8...

Page 64: ...winding Amplidyne winding Sump pressure sensor Touch off winding High voltage bundle commute manostat Spark plug Emergency signal light assy Earth white black red white yellow red red yellow orange b...

Page 65: ...inding Sump pressure sensor Touch off winding High voltage bundle commute manostat Spark plug Emergency signal light assy Earth white black red white yellow red red yellow orange blue green brown W B...

Page 66: ...Engine stop switch 4 3 2 1 Switch Ignition 4 3 2 1 DESCRIPTION SN Br G L Y R Y R R W B W brown green blue yellow red yellow red red white black white Buzzer Br Br W R G P B L Br G R P L B W B W R L Y...

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