Free help & advice Learn more

Gift cards now available Learn more

  • Free shipping over $100

  • Free help & advice

  • Hassle-free returns

  • Open 7 days a week

Flash Sale now on!

FLASHSALE23

Honda BF50 Parts

(0 products)

🔎 Honda BF50 Resource Center — Browse exploded parts diagrams (33 diagrams), specifications, and maintenance tips below. Scroll down to shop replacement parts for your Honda BF50.

The Honda BF50 is a 50-horsepower, 3-cylinder, 4-stroke outboard engine that occupies a sweet spot between mid-range portability and genuine working power. Produced by Honda Marine across multiple generations, the BF50 is a top choice for pontoon boats, bay boats, aluminum deep-V hulls, and commercial skiffs that demand reliable thrust, smooth operation, and excellent fuel economy. Later models feature electronic fuel injection for instant starts and optimized combustion at every throttle position.

Maintaining the BF50 to factory standards is easy when you have the right parts. WoMarine.com carries a deep inventory of OEM replacement parts and aftermarket marine parts for every generation of this popular engine. Our exploded parts diagrams let you visually identify every component — from the water pump assembly to the ignition system — so you can order with confidence. Whether you are a first-time DIY boat engine repair enthusiast or a seasoned marine technician, our catalog and competitive pricing make it simple to keep your Honda BF50 running at its best.

Quick Reference Specifications

Engine Type 4-Stroke SOHC, 3-Cylinder, EFI (later models) / Carbureted (earlier models)
Displacement 808 cc (49.3 cu in)
Bore x Stroke 65 mm x 81 mm
Spark Plug (Type & Gap) NGK DPR6EA-9 / Gap: 0.8–0.9 mm (Refer to Owner's Manual)
Engine Oil Capacity Approx. 1.5 L
Recommended Engine Oil SAE 10W-30 (API SG or higher)
Gear Case Oil Capacity Approx. 370 mL
Idle Speed Refer to Owner's Manual
Full Throttle RPM Range 5,500–6,000 RPM
Fuel Unleaded Gasoline (87 Octane or higher)

Always verify specifications against your owner's manual for your specific serial number range, as Honda may update specs across production years.

Common Issues & Recommended Parts

The BF50 is built on Honda's well-proven 3-cylinder platform, but all outboard engines require vigilant maintenance in the harsh marine environment. These are the issues BF50 owners report most frequently:

  • Overheating / Impeller Failure: Running the engine with a worn or damaged impeller risks severe powerhead overheating. Replace the water pump impeller kit every season or 200 hours and inspect the housing for scoring.
  • Starting Difficulty: On carbureted models, varnished carburetor passages are the usual culprit; a rebuild kit solves most cases. On EFI models, a clogged fuel filter or failing fuel pump can cause similar symptoms.
  • Lower Unit Seal Leaks: The prop shaft seal is exposed to constant water and fishing-line debris. Replace the complete lower-unit seal kit whenever you find water in the gear case oil.
  • Fuel System Degradation: Ethanol-blended fuel causes rubber hoses, O-rings, and diaphragms to swell and crack over time. Annual replacement of all rubber fuel-system components is the best prevention.
  • Anode Wear: Sacrificial zinc anodes on the trim tab and lower unit prevent galvanic corrosion of aluminum castings. In saltwater, check anodes monthly and replace at 50% depletion.

Parts Diagrams & OEM Part Numbers

Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Honda BF50.

CAMSHAFT (14 parts) CAMSHAFT
Ref OEM Part # Part Name
1 12209-422-005 SEAL, VALVE STEM
3 14481-ZV5-000 SPRING, ROCKER ARM A
4 14482-ZV5-000 SPRING, ROCKER ARM B
5 14621-ZV5-000 ARM, IN. ROCKER
6 14636-ZV5-000 COLLAR, ROCKER
7 14711-ZW4-000 VALVE, IN.
8 14721-ZV5-000 VALVE, EX.
9 14751-ZW4-000 SPRING, VALVE
10 14765-ZV5-000 RETAINER, VALVE SPRING
11 14775-ZV5-000 SEAT, VALVE SPRING
12 14781-MB4-000 COTTER, VALVE
13 90012-KK9-960 SCREW, TAPPET ADJUSTING
14 90206-ML7-000 NUT, TAPPET ADJUSTING
15 91201-ZV5-003 OIL SEAL (30X42X8)
CARBURETOR (41 parts) CARBURETOR
Ref OEM Part # Part Name
3 16011-ZV4-005 VALVE SET, FLOAT
4 16013-ZV4-005 FLOAT SET
5 16023-ZV3-000 CHAMBER SET, FLOAT
6 16016-ZV3-000 SCREW SET
7 16024-ZY3-000 SCREW SET, DRAIN
8 16028-ZV3-000 SCREW SET
9 16029-ZV3-000 SCREW SET
10 16052-KG4-003 SPRING, COMPRESSION COIL
11 16071-ZV4-005 SCREW, PLUG
12 16081-ZV4-650 SCREW-WASHER
14 16101-ZW4-D23 CARBURETOR ASSY. (#1/#2)
18 16148-141-881 CAP, CHOKE DUST
19 16150-ZW4-000 JET SET (#42)
20 16166-ZW4-000 NOZZLE, MAIN
21 16211-ZW4-000 INSULATOR, CARBURETOR
24 16263-ZA0-000 JOINT, ROD
25 16574-ZV5-000 ARM A, CHOKE
32 16960-ME9-000 PIPE, THREE WAY JOINT
34 17151-ZV5-000 GASKET, IN. MANIFOLD
35 17202-ZV5-310 COLLAR, DISTANCE
37 17384-ZV5-000 GASKET, MUFFLER PLATE
38 17881-ZV5-010 PIPE, INSTALL
39 17957-ZV4-000 BUSH, LINKAGE
40 36135-ZV5-004 VALVE, DASHPOT CHECK
41 90021-ZV5-000 BOLT, FLANGE (6X97)
43 90511-ZV4-000 WASHER, PLAIN (6MM)
44 90603-ZV4-000 CLIP, TUBE (B10)
45 91503-ZV5-000 COLLAR, DISTANCE (6.5X10.5X16)
47 93500-05010-0B SCREW, PAN (5X10)
48 93500-06018-4J SCREW, PAN (6X18)
49 95001-35003-60M BULK HOSE, FUEL (3.5X3000) (3.5X60)
50 95001-35003-60M BULK HOSE, FUEL (3.5X3000) (3.5X60)
51 95001-55003-60M BULK HOSE, FUEL (5.5X3000) (5.3X170)
52 95001-55003-60M BULK HOSE, FUEL (5.5X3000) (5.3X170)
53 95001-55003-60M BULK HOSE, FUEL (5.5X3000) (5.3X170)
54 16881-ZV5-000 TUBE D, FUEL
55 95003-05008-60M BULK HOSE, VINYL (3.5X6.5X8000) (3.5X6.5X200)
56 95003-05008-60M BULK HOSE, VINYL (3.5X6.5X8000) (3.5X6.5X200)
57 95701-06028-02 BOLT, FLANGE (6X28)
58 96220-60150 ROLLER (6X15)
59 99101-ZV5-1300 JET, MAIN (#130)
CYLINDER BLOCK (22 parts) CYLINDER BLOCK
Ref OEM Part # Part Name
5 15142-PE0-000 O-RING (4.8X1.9)
6 15150-ZV5-000 ORIFICE ASSY., OIL PASSAGE
8 19271-ZV5-000 JOINT, WATER HOSE
9 19300-ZV5-043 THERMOSTAT ASSY.
10 19315-ZV5-010 COVER, THERMOSTAT
12 19361-ZV5-000 COVER, WATER JACKET
13 19371-ZV5-000 GASKET, WATER JACKET COVER
14 32116-ZV5-010 HOLDER, WIRE (A)
15 37240-ZG3-E01 SWITCH, OIL PRESSURE
17 90002-ZG5-004 SCREW-WASHER (4X8)
19 90018-PN3-000 HOLDER, OIL FILTER
20 90020-ZV5-000 BOLT, FLANGE (6X22)
21 90122-ZV1-010 BOLT, FLANGE (6X12)
23 90602-921-000 CLIP, TUBE (B8)
24 91003-ZV5-003 BEARING, RADIAL BALL (6005)
25 91202-ZV5-005 OIL SEAL (56X70X8)
26 93500-06018-4J SCREW, PAN (6X18)
27 94301-10120 PIN, DOWEL (10X12)
28 94301-12160 PIN A, DOWEL (12X16)
30 95701-06020-02 BOLT, FLANGE (6X20)
31 95701-06040-02 BOLT, FLANGE (6X40)
32 95701-08018-02 BOLT, FLANGE (8X18)
CYLINDER HEAD (23 parts) CYLINDER HEAD
Ref OEM Part # Part Name
1 12200-ZW4-H01ZA CYLINDER HEAD ASSY. *NH8* (DARK GRAY)
2 12205-ZV5-325 GUIDE, VALVE (OVER SIZE)
3 12228-ZV5-004 BOLT-WASHER (10X85)
4 12251-ZW4-H01 GASKET, CYLINDER HEAD
6 12314-ZV5-300 COLLAR, HEAD COVER
7 12391-ZV5-010 GASKET, HEAD COVER
8 14631-ZV5-000 SHAFT, IN. ROCKER ARM
9 14632-ZV5-000 SHAFT, EX. ROCKER ARM
11 15611-921-000 CAP, OIL (YELLOW)
12 16700-ZW1-004 PUMP ASSY., FUEL (MSDS)
13 16716-ZV5-000 LIFTER, FUEL PUMP
15 90006-ZV5-000 BOLT, STUD (6X28)
16 90018-ZV5-000 BOLT, FLANGE (6X70)
17 90602-ZV5-013 CLAMP, TUBE (D22)
18 90603-ZV4-000 CLIP, TUBE (B10)
19 90604-ZV0-000 CLIP, TUBE (B12)
20 90602-ZV3-030 CLAMP, TUBE (D18.8)
21 91301-805-000 O-RING (26X2.7)
23 94301-08140 PIN, DOWEL (8X14)
24 94303-06100 PIN, DOWEL (6X10)
25 95701-06035-02 BOLT, FLANGE (6X35)
26 95701-08040-02 BOLT, FLANGE (8X40)
27 96001-06020-02 BOLT, FLANGE (6X20)
CYLINDER HEAD ASSEMBLY (0 parts)
ENGINE LOWER CASE (39 parts) ENGINE LOWER CASE
Ref OEM Part # Part Name
2 16900-SA5-004 FILTER, FUEL (TOYO ROKI)
6 24210-ZV1-010 SPRING, CLICK
7 24221-ZV4-010 SPRING, CLICK ASSIST
9 24621-ZV4-010 BUSH, SHAFT
10 24625-ZV5-010 PLATE, SHIFT
11 24626-ZV5-010 PLATE, SHIFT SHAFT
13 32660-MJ6-710 CLAMP, WIRE
14 34314-ZV5-820 BRACKET, UNIT
16 35616-ZV5-010 BRACKET, NEUTRAL SWITCH
22 38402-GC1-000 SUSPENSION, AUDIBLE PILOT
24 40102-ZV5-000 GROMMET, CASE (LOWER)
25 40103-ZV5-000 SEAL, CASE (LOWER)
26 40106-ZV5-000 GROMMET, CASE (LOWER) (B)
27 40107-ZV5-820 GROMMET, CASE (LOWER) (C)
29 40109-ZV5-000 GROMMET, CASE (LOWER) (E)
32 40114-ZV5-821 GROMMET, CASE (LOWER)
35 40151-ZV5-000ZA CASE, SEPARATE *NH282MU* (OYSTER SILVER METALLIC-U)
36 63100-ZV5-010ZA COVER, ENGINE *NH282MU* (OYSTER SILVER METALLIC-U)
37 63102-ZV5-300 SEAL, ENGINE COVER
39 63240-ZV5-000 LEVER, FASTENER
40 82873-ZV5-000 GROMMET, WATER CHECK
41 90013-ZV0-010 BOLT, FLANGE (6X12) (CT200)
42 90015-ZV0-000 BOLT, FLANGE (6X28) (CT200)
43 90120-ZV4-010 BOLT, HEX. (6X40)
44 90127-ZV5-003 SCREW, RIVET (5X10)
45 90301-473-003 NUT, U (6MM) (FUSE RASHI)
46 90302-ZV5-003 NUT, HEX. (20MM)
47 90304-881-010 NUT (6MM)
48 90506-ZV4-000 WASHER, PLAIN (6MM)
50 90512-921-010 WASHER (6MM)
51 90603-ZV4-000 CLIP, TUBE (B10)
52 90604-ZV0-000 CLIP, TUBE (B12)
53 90628-750-000 CLIP (14MM)
56 90801-SB0-000 PLUG, CHANGE REINFORCEMENT
57 91547-SF4-003 BAND, WIRE HARNESS (123.5MM) (BLUE)
58 91553-ZV5-010 COLLAR, MODULE IGNITION CONTROL CASE (CDI)
59 94103-06200 WASHER, PLAIN (6MM)
60 94305-30203 PIN, SPRING (3X20)
61 95701-06028-02 BOLT, FLANGE (6X28)
EXTENSION CASE (48 parts) EXTENSION CASE
Ref OEM Part # Part Name
1 06412-ZV5-000 TAB KIT, TRIM
2 17936-921-000 WASHER, PIVOT
3 19280-ZV5-000 TUBE, WATER (LOWER)
4 19286-ZV5-000 PLATE, RUBBER SETTING
5 32161-KM3-003 BAND, WIRE
8 40209-ZV5-000 RUBBER, DRAIN PLUG
10 40212-ZV5-010ZA COVER, DRAIN PLUG *NH282MU* (OYSTER SILVER METALLIC-U)
11 40219-ZY3-023 WIRE, LEAD (1.5X116MM)
13 41104-ZV5-000 SCREEN, R. WATER
14 41105-ZV5-000 SCREEN, L. WATER
15 41107-ZV5-000 TAB, TRIM
16 41108-ZV5-010 SCREEN, WATER (LOWER)
17 41171-ZV5-000 END, NIPPLE
18 41172-ZV5-000 NIPPLE, SENSOR
19 50111-ZV5-000ZA HOUSING, R. MOUNTING (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U)
20 50155-ZV5-000 RUBBER, MOUNT (LOWER)
21 50161-ZV5-010ZA HOUSING, CENTER MOUNTING (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U)
22 63701-ZV5-010ZA COVER (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U)
23 63702-ZV5-000 RUBBER, COVER (LOWER)
24 90009-ZV5-000 BOLT, HEX. (8X35)
25 90105-ZVA-000 BOLT, OIL CHECK
26 90110-ZV5-000 SCREW, SPECIAL (6X35)
27 90115-ZV5-000 BOLT, HEX. (8X25)
28 90117-ZV5-003 SCREW, RIVET (8X15)
29 90118-ZV5-000 BOLT, HEX. (12X162)
30 90119-ZV5-000 SCREW, PAN (6X8)
31 90120-ZV5-003 BOLT, DRAIN PLUG (8MM)
32 90122-ZV5-000 BOLT, HEX. (8X65)
33 90123-ZV5-010 BOLT, HEX. (10X40)
36 90126-ZV5-000 BOLT, HEX. (8X20)
37 90127-ZV4-000 BOLT, HEX. (6X16)
38 90302-ZV4-000 NUT, SELF-LOCK (5MM)
41 90308-ZV5-003 NUT, SELF-LOCK (12MM)
42 90311-ZV5-000 NUT, PLATE (5MM)
43 90452-GK4-600 WASHER, PLAIN (5MM)
45 90507-ZV4-000 WASHER, PLAIN (8MM)
46 90552-ZV5-000 WASHER, PLAIN (12MM)
48 90559-ZV5-000 WASHER, PLAIN (12MM)
49 90563-ZV5-000 WASHER, PLAIN (10MM)
51 90756-ZV5-000 PIN, DOWEL (6X10)
52 91563-ZV5-000 COLLAR, DISTANCE (6X10.5X25)
53 91566-ZV5-000 COLLAR, WATER SCREEN (LOWER)
54 91568-ZV5-000 COLLAR, DISTANCE (5X7X38)
55 91569-ZV5-000 COLLAR, DISTANCE (5X7X23)
56 93500-05030-4J SCREW, PAN (5X30)
57 93500-05045-4J SCREW, PAN (5X45)
58 93700-05032-4J SCREW, OVAL (5X32)
59 95005-50003-30M BULK HOSE, VACUUM (5X3000) (5X100) (5X200) (5X300)
FLYWHEEL (5 parts) FLYWHEEL
Ref OEM Part # Part Name
1 30590-ZV5-003 COIL ASSY., EXCITER
4 31630-ZV5-912 COIL ASSY., CHARGE (12V/10A)
5 32117-ZV5-000 HOLDER, WIRE (B)
7 90121-ZV0-010 BOLT, FLANGE (6X25)
8 90122-ZV1-010 BOLT, FLANGE (6X12)
FUEL TANK (15 parts) FUEL TANK
Ref OEM Part # Part Name
2 16977-ZV5-A00 FITTING, QUICK DISCONNECT
3 16979-ZV5-901 O-RING
4 17500-ZZ5-711 TANK ASSY., FUEL
5 17583-ZV5-901 FILTER, FUEL
7 04104-ZW9-010 CONNECTOR ASSY., FUEL (A)
8 17660-ZW9-003 CONNECTOR, FUEL
9 17661-921-010 BULB, PRIMER
10 17665-ZV5-000 VALVE, IN.
11 17680-ZV4-000 VALVE, OUTLET
12 04101-ZW9-010 TUBE ASSY., FUEL
13 17701-ZV5-000 TUBE, FUEL LONG (7.3X2000)
15 17703-921-010 BAND, TUBE CLIP (20MM)
16 17704-ZV4-010 BAND, TUBE CLIP (12.5MM)
18 17936-921-000 WASHER, PIVOT
19 90013-ZV4-010 BOLT, FLANGE (6X20) (CT200)
GASKET KIT (14 parts) GASKET KIT
Ref OEM Part # Part Name
1 11381-ZV5-004 GASKET, OIL PAN
2 12251-ZW4-H01 GASKET, CYLINDER HEAD
3 12391-ZV5-010 GASKET, HEAD COVER
4 15142-PE0-000 O-RING (4.8X1.9)
6 17151-ZV5-000 GASKET, IN. MANIFOLD
7 17384-ZV5-000 GASKET, MUFFLER PLATE
8 17394-ZV5-000 GASKET, MUFFLER COVER
9 18291-ZV5-010 GASKET, EX. PIPE
11 19371-ZV5-000 GASKET, WATER JACKET COVER
12 23162-ZV5-024 GASKET, PRIMARY GEAR CASE
13 91301-ZV5-000 O-RING, PUMP COVER
14 91301-805-000 O-RING (26X2.7)
15 91303-377-000 O-RING (13.8X2.5)
16 91302-KF0-003 O-RING (54X2.4) (ARAI)
GASKET KIT (SHORT BLOCK & HEAD ASSY.) (0 parts)
GEAR CASE (1 parts) GEAR CASE
Ref OEM Part # Part Name
1 41100-ZW4-H16ZA CASE ASSY., GEAR *NH282MU* (OYSTER SILVER METALLIC-U)
HANDLEBAR (34 parts) HANDLEBAR
Ref OEM Part # Part Name
2 17929-ZV3-010 BRACKET, THROTTLE CABLE
7 24617-ZV3-010 PLATE, SHIFT LINK (A)
9 24626-ZV5-010 PLATE, SHIFT SHAFT
10 35100-ZV5-003 SWITCH ASSY., COMBINATION
11 35110-ZV5-003 KEY ASSY., COMBINATION SWITCH (35100-ZV5-003 ONLY)
14 36182-ZV4-651 WIRE, EMERGENCY
15 36187-ZV4-652 CLIP, EMERGENCY LOCK
16 40105-ZV3-000 GROMMET, CASE (LOWER) (A)
17 50281-ZV3-000ZA HANDLE, CARRYING *NH282MU* (OYSTER SILVER METALLIC-U)
20 53104-ZV3-000 BOLT, FRICTION
22 53109-ZV3-000 RUBBER, HANDLE MOUNTING
23 53111-ZV3-010 PLATE, HANDLEBAR
25 53148-ZV3-000 SPRING, GRIP PIPE
26 53165-ZV4-000 RUBBER, GRIP
27 90013-ZV0-010 BOLT, FLANGE (6X12) (CT200)
28 90119-ZV5-000 SCREW, PAN (6X8)
29 90123-ZV3-000 SCREW, PAN (5X12)
30 90127-ZV4-000 BOLT, HEX. (6X16)
31 90205-PP9-020 NUT, SELF-LOCK (6MM)
32 90302-921-000 NUT, HEX. (16MM)
33 90306-ZV5-003 NUT, SELF-LOCK (10MM)
34 90452-GK4-600 WASHER, PLAIN (5MM)
35 90514-ZV4-000 WASHER (10MM)
36 90515-ZV3-000 WASHER, HANDLEBAR (36MM)
37 90543-ZV3-000 WASHER (10MM)
38 90759-ZV1-000 PIN, SPLIT (2.0)
39 91451-ZV3-003 TUBE, SPIRAL
40 91475-SB6-000 CLIP, WIRE HARNESS (6.3MM)
41 91503-ZV5-000 COLLAR, DISTANCE (6.5X10.5X16)
42 91559-ZV3-000 COLLAR, HANDLEBAR
43 94002-06490-0S NUT, HEX. (6MM)
44 94305-40203 PIN, SPRING (4X20)
45 94305-40283 PIN, SPRING (4X28)
46 95801-06028-02 BOLT, FLANGE (6X28)
IGNITION COIL (1) (12 parts) IGNITION COIL (1)
Ref OEM Part # Part Name
4 30513-ZV5-003 COIL, IGNITION (3)
5 30516-ZV5-003 SUSPENSION, IGNITION COIL
8 30588-ZV5-013 COVER, IGNITION CONTROL MODULE (CDI)
9 30598-ZV5-000 GROMMET, MODULE IGNITION CONTROL CASE (CDI)(B)
11 32106-ZV5-010 BRACKET, CONNECTOR (A)
13 32805-413-000 CLIP, TURN SIGNAL WIRE
15 40102-ZV5-000 GROMMET, CASE (LOWER)
16 90121-ZV0-010 BOLT, FLANGE (6X25)
17 90122-ZV1-010 BOLT, FLANGE (6X12)
19 91553-ZV5-010 COLLAR, MODULE IGNITION CONTROL CASE (CDI)
20 94103-06200 WASHER, PLAIN (6MM)
21 95701-06020-02 BOLT, FLANGE (6X20)
IMPELLER HOUSING (39 parts) IMPELLER HOUSING
Ref OEM Part # Part Name
1 19210-ZV5-003 IMPELLER, PUMP
2 19221-ZV5-000 HOUSING, IMPELLER
3 19223-ZV5-000 LINER, PUMP
4 19231-ZV5-000 COVER, IMPELLER
5 19233-ZV5-000 GASKET B, IMPELLER
6 19241-ZV5-000 HOUSING, WATER PUMP
7 19242-ZV5-000 GASKET, WATER PUMP
8 19251-ZV5-701 TUBE, WATER (L)
9 19253-ZV5-000 RING, WATER TUBE SEAL
10 04402-ZW4-700 ROD, SHIFT (L)
11 24312-ZV5-000 JOINT, SHIFT ROD
12 24313-ZV5-000 GROMMET, SHIFT ROD
13 24316-ZV5-000 BAND A, GROMMET
14 24317-ZV5-000 BAND B, GROMMET
15 24320-ZV5-000 ROD A, SHIFT
16 24341-ZV5-701 ROD, PUSH
17 24343-ZV5-700 HOLDER, SEAL
19 40204-ZV5-000 GROMMET, EXTENSION CASE
20 41112-ZV5-701 SHAFT, VERTICAL (L)
21 41116-ZV5-000 SLINGER, OIL
22 41131-ZV5-000 GEAR, PINION
23 90105-881-000 BOLT, HEX. (6X12)
24 90114-881-000 BOLT, HEX. (6X40)
25 90303-ZV5-000 NUT, SPECIAL (12MM)
26 90452-GK4-600 WASHER, PLAIN (5MM)
27 90512-921-010 WASHER (6MM)
28 90521-ZV5-000 SHIM, GEAR (40X46X0.50) (D)
29 90752-ZV5-003 KEY, WOODRUFF
30 90754-921-010 PIN (5X17)
31 90756-921-000 PIN, SPLIT (1.6MM)
32 91052-ZV5-003 BEARING, NEEDLE (7/8X11/8X1)
33 91054-ZV5-003 BEARING (25X47X15)
34 91251-ZV5-003 SEAL, WATER (17X30X7)
36 91353-ZV5-003 O-RING (47X3.1)
37 91356-ZV5-000 O-RING, WATER PUMP
38 91555-ZV5-000 COLLAR, IMPELLER HOUSING
39 94002-08490-0S NUT, HEX. (8MM)
40 94305-20122 PIN, SPRING (2X12)
41 96220-30148 ROLLER (3X14.8)
INLET MANIFOLD (14 parts) INLET MANIFOLD
Ref OEM Part # Part Name
2 16400-ZV5-015 DIAPHRAGM ASSY.
3 17838-ZV5-000 LINKAGE, PIVOT
5 17927-ZV5-000 PLATE, ASSIST
6 17928-ZV5-000 SPRING, ASSIST
7 17937-ZV5-010 CAM, THROTTLE OPENER
8 17938-ZV5-000 SPRING, OPENER CAM RETURN
9 17946-ZV5-000 CAM, THROTTLE
10 90011-ZV5-003 BOLT, TORX (6X14)
11 90202-ZV0-000 NUT, CAP (6MM)
12 90511-ZV4-000 WASHER, PLAIN (6MM)
13 91504-ZV5-000 COLLAR (6.7X12.5X24)
14 94001-05490-0S NUT, HEX. (5MM)
15 95701-06032-02 BOLT, FLANGE (6X32)
16 95701-06040-02 BOLT, FLANGE (6X40)
MARKS (6 parts) MARKS
Ref OEM Part # Part Name
5 87121-ZW4-000 MARK, RR. (50)
11 87511-ZV5-620 MARK, CHANGE (ENGLISH)
12 87531-ZW4-720 LABEL, OIL CAUTION (ENGLISH)
14 87535-ZV5-620 LABEL, STORING CAUTION (ENGLISH)
15 87538-ZW1-740 LABEL, WARNING OPERATOR (ENGLISH)
18 87546-ZV5-621 MARK, EMERGENCY START (ENGLISH)
MUFFLER COVER (10 parts) MUFFLER COVER
Ref OEM Part # Part Name
1 16675-ZV5-010 STAY, SOLENOID
4 17394-ZV5-000 GASKET, MUFFLER COVER
6 36190-ZV5-003 SOLENOID ASSY., REMOTE CHOKE (NOT AVAILABLE)
8 90136-SE0-A01 HOLDER, ROD (6MM)
9 90545-323-700 WASHER (6.5X18)
11 91405-PM5-004 CLAMP, TUBE (D17)
12 95701-06014-02 BOLT, FLANGE (6X14)
13 95701-06025-02 BOLT, FLANGE (6X25)
14 95701-06040-02 BOLT, FLANGE (6X40)
15 96001-06012-02 BOLT, FLANGE (6X12)
OIL PAN (18 parts) OIL PAN
Ref OEM Part # Part Name
3 11381-ZV5-004 GASKET, OIL PAN
4 15650-ZV5-000 DIPSTICK, OIL
6 23134-ZV5-000 SPRING, THRUST
9 23162-ZV5-024 GASKET, PRIMARY GEAR CASE
10 23437-ZV5-000 GEAR, PRIMARY DRIVEN (33T)
11 90009-ZV5-000 BOLT, HEX. (8X35)
12 90010-ZV5-000 BOLT, HEX. (8X55)
13 90113-ZV5-000 BOLT, HEX. (6X25)
14 90131-ZV5-000 BOLT, DRAIN PLUG
15 90506-ZV4-000 WASHER, PLAIN (6MM)
16 90507-ZV4-000 WASHER, PLAIN (8MM)
17 90601-ZE2-000 WASHER, DRAIN PLUG (12MM)
18 91024-ZV5-003 BEARING, RADIAL BALL (6205)
19 91204-ZV5-005 OIL SEAL (25X40X7)
20 91221-ZV5-005 SEAL, WATER (17X26X7)
21 94303-06100 PIN, DOWEL (6X10)
22 95701-08075-08 BOLT, FLANGE (8X75)
23 18291-ZV5-010 GASKET, EX. PIPE
OIL PUMP (21 parts) OIL PUMP
Ref OEM Part # Part Name
1 15100-ZV5-000 PUMP ASSY., OIL
2 15116-ZV5-000 COVER, OIL PUMP
3 15122-ME5-000 ROTOR (INNER)
4 15132-ZV5-000 SHAFT, OIL PUMP
5 15162-393-000 ROTOR A (OUTER)
6 15220-ZV5-000 STRAINER, OIL
7 15231-413-020 VALVE, RELIEF
8 15232-KT8-000 SPRING, RELIEF VALVE
9 15236-ZV5-010 BOLT, SEALING (14MM)
10 15302-PE0-300 WASHER, SEALING (14MM)
12 19252-ZV5-000 GROMMET, WATER TUBE
14 90115-ZV5-000 BOLT, HEX. (8X25)
15 90456-MC7-000 WASHER, THRUST (13MM)
17 90507-ZV4-000 WASHER, PLAIN (8MM)
18 91301-ZV5-000 O-RING, PUMP COVER
19 91303-377-000 O-RING (13.8X2.5)
20 91302-KF0-003 O-RING (54X2.4) (ARAI)
22 95701-06016-00 BOLT, FLANGE (6X16)
23 95701-06055-02 BOLT, FLANGE (6X55)
24 96220-50178 ROLLER (5X17.8)
25 18330-ZV5-020 PIPE, EX.
PISTON (14 parts) PISTON
Ref OEM Part # Part Name
1 13011-ZV5-010 RING SET, PISTON (STD)
2 13101-ZV5-010 PISTON (STD)
4 13204-PE1-003 BOLT, CONNECTING ROD
5 13205-634-010 NUT, CONNECTING ROD
7 13217-ZV5-003 BEARING G, CONNECTING ROD (RED) (DAIDO)
8 13311-ZV5-000 CRANKSHAFT
9 13327-P36-003 BEARING G, MAIN (RED) (DAIDO)
10 13331-679-003 WASHER, THRUST
11 23413-ZV5-000 GEAR C, PRIMARY DRIVE (26T) (YELLOW)
12 90202-PB6-010 NUT, FLANGE (22MM)
13 90473-ZV5-000 WASHER (22MM)
14 94303-06100 PIN, DOWEL (6X10)
15 94401-25140 KEY, WOODRUFF (25X14)
16 94601-18000 CLIP, PISTON PIN (18MM)
POWER TILT COMPONENTS (32 parts) POWER TILT COMPONENTS
Ref OEM Part # Part Name
2 32115-ZV5-820 CLAMP, WIRE
7 36136-ZV5-821 SPRING, MOTOR
9 56114-ZV5-821 PUMP
12 56117-ZV5-821 RING, BACK-UP
15 56150-ZV5-821 SPOOL, VALVE
16 56151-ZV5-822 RING, BACK-UP
17 56161-ZV5-821 SLEEVE
21 56165-ZV5-821 GUIDE B, SPRING
27 56191-ZV5-822 SEAT B, VALVE
28 56192-ZV5-822 SPRING B, VALVE
29 90001-ZV5-821 SCREW-WASHER
30 90114-ZV5-821 BOLT, SOCKET
31 90134-ZV5-820 SCREW, PAN
32 90401-ZV5-822 WASHER, PLAIN
33 90402-V15-003 WASHER, SEAL
37 91203-ZV5-821 OIL SEAL
38 91302-ZV5-821 O-RING (1.8X69.6)
39 91303-ZV5-821 O-RING (1.9X8.8)
40 91304-ZV5-821 O-RING (1.5X6.5)
41 91306-ZV5-821 O-RING (1.5X13.5)
42 91307-ZV5-821 O-RING (1.5X15.5)
43 91308-ZV5-821 O-RING
44 91309-ZV5-821 O-RING
45 91310-ZV5-821 O-RING
46 91311-ZV5-822 O-RING (1.5X3.5)
47 91316-ZV5-821 O-RING (3.5X38.7)
48 91317-ZV5-821 O-RING (2.0X44.5)
49 91318-ZV5-822 O-RING (2.0X55.5)
52 90115-ZV5-821 BOLT, SOCKET
53 91351-766-801 O-RING (1.9X27.7)
54 56140-ZV5-822 VALVE (B)
55 91305-ZV5-822 O-RING (1.5X10.7)
POWER TRIM-TILT (5 parts) POWER TRIM-TILT
Ref OEM Part # Part Name
1 36104-ZV5-821 TUBE, SPIRAL
6 56512-ZV5-000 BUSH, CYLINDER (UPPER)
7 56532-ZZ5-C00 PIN, CYLINDER (UPPER)
8 90502-ZV5-000 WASHER, WAVE (26MM)
12 94540-10029 E-RING (10MM)
PROPELLER (26 parts) PROPELLER
Ref OEM Part # Part Name
2 24102-ZV5-000 PIN, SHIFTER (6.3X33)
3 24103-ZV5-000 RING, CROSS PIN
4 24106-ZV5-000 HOLDER, SHIFTER PIN
5 24122-ZV5-000 SLIDER, SHIFT
6 24123-ZV5-003 SPRING, SHIFT
7 41109-ZV5-000 NUT, GEAR CASE END
9 41151-ZV5-010 GEAR, RR. BEVEL
11 41200-ZV5-030 HOLDER ASSY., PROPELLER SHAFT
12 58130-ZV5-870ZA PROPELLER, THREE-BLADE (11-1/2X14-1/4) *NH283* (STIN GRAY)
13 58151-ZV5-000 SPACER (10MM)
14 90301-ZV5-000 NUT, CASTLE (16MM)
15 90503-ZV5-000 WASHER (22MM)
16 90506-ZZ5-C00 WASHER, PROPELLER THRUST
17 90508-ZV5-000 WASHER (17MM)
18 90509-ZV5-000 WASHER, CLAW
19 90531-ZV5-000 SHIM, FR. BEVEL (51X57X0.50) (D)
20 90541-ZV5-000 SHIM, RR. BEVEL (73X77X0.50) (D) (NOT AVAILABLE)
21 90548-ZV5-010 WASHER, PLAIN (54MM)
22 90758-ZV5-000 PIN, SPLIT (4.0)
23 91051-ZV5-003 BEARING (32X58X17)
24 91053-ZV5-003 BEARING, NEEDLE (22X28X20)
25 91252-ZV5-003 SEAL, WATER (22X35X7)
26 91351-ZV5-003 O-RING (66X5.7)
27 96100-60070-00 BEARING, RADIAL BALL (6007)
28 96211-11000 BALL, STEEL (#11) (11/32)
30 41201-ZV5-000 HOLDER, PROPELLER SHAFT
PUMP IMPELLER KIT (8 parts) PUMP IMPELLER KIT
Ref OEM Part # Part Name
1 06190-ZV1-860 JOINT KIT, WATER HOSE
3 19210-ZV5-003 IMPELLER, PUMP
4 19223-ZV5-000 LINER, PUMP
5 19231-ZV5-000 COVER, IMPELLER
6 19233-ZV5-000 GASKET B, IMPELLER
7 19270-881-812 NUT, WATER MOUTH
8 19271-ZV1-810 JOINT, WATER HOSE
9 19272-881-810 SEAT, WATER MOUTH
REMOTE CONTROL CABLE (34 parts) REMOTE CONTROL CABLE
Ref OEM Part # Part Name
1 30401-VM0-000 CUSHION, IGNITION CONTROL MODULE (CDI)
2 31600-ZV5-003 RECTIFIER ASSY., REGULATOR (12A)
5 32121-HA0-003 BAND, WIRE
6 32161-404-000 BAND B1, WIRE
8 32411-ZV5-003 COVER, TERMINAL
11 32660-MJ6-710 CLAMP, WIRE
12 32903-701-000 CLAMP, IGNITION WIRE
15 34908-MB9-871 BULB, WEDGE BASE (T10) (12V 1.7W) (STANLEY)
16 34908-MG9-951 BULB, WEDGE BASE (12V 1.7W)
17 37215-KM1-670 CLAMP
18 37250-ZV5-822 TACHOMETER ASSY.
19 37253-ZV5-821 GASKET
20 37256-ZV5-821 BRACKET
21 37258-ZV5-821 SOCKET
22 37260-ZV5-821 METER ASSY., TRIM
23 37263-ZV5-821 GASKET
24 37266-ZV5-821 BRACKET
25 37268-ZV5-821 SOCKET
26 38550-ZV5-822 RELAY ASSY., POWER TILT (NOT AVAILABLE)
27 50163-063-000 GROMMET, FEED TUBE
28 90013-ZV0-010 BOLT, FLANGE (6X12) (CT200)
29 90017-ZV0-000 BOLT, FLANGE (6X18)
31 90203-ZV5-000 NUT, HEX. (6MM)
32 90309-ZV5-821 NUT, HEX. (5MM)
33 90310-ZV5-821 NUT, HEX. (4MM)
34 90403-ZW1-000 WASHER, PLAIN (6MM)
35 90550-ZV5-821 WASHER, SPRING (5MM)
36 90560-ZV5-821 WASHER, SPRING (4MM)
37 90630-751-000 CLIP, PURSE LOCK
38 90682-ZV5-003 CLIP, WIRE HARNESS
39 95701-06020-02 BOLT, FLANGE (6X20)
40 95701-08012-02 BOLT, FLANGE (8X12)
41 98200-11000 FUSE A (10A)
42 98200-31500 FUSE, BLADE (15A)
SHORT BLOCK (0 parts)
SPEEDOMETER KIT (2 parts) SPEEDOMETER KIT
Ref OEM Part # Part Name
2 32550-ZV5-910 HARNESS ASSY., METER (B)
4 39700-ZV5-800AH METER ASSY., HOUR L.C.D.
STARTER MOTOR (21 parts) STARTER MOTOR
Ref OEM Part # Part Name
3 31216-ZV5-003 YOKE
4 31217-ZV5-003 ARMATURE
6 31231-ZV5-003 HOLDER, BRUSH (NOT AVAILABLE)
7 31233-ZV5-003 BUSH (M)
9 31236-ZV5-003 BRACKET, RR.
10 31239-ZV5-003 CAP, STOPPER
11 31261-ZV5-003 BOLT, THROUGH
12 31295-ZV5-003 BRUSH
15 32411-402-000 COVER, STARTER MOTOR TERMINAL
16 32412-ZV5-003 COVER, MAGNETIC SWITCH
17 35850-ZV5-003 SWITCH ASSY., STARTER MAGNETIC
18 90015-ZV5-003 SCREW (4MM)
19 90122-ZV1-010 BOLT, FLANGE (6X12)
20 90203-ZV5-000 NUT, HEX. (6MM)
21 90204-ZV5-003 NUT (1)
22 90205-ZV5-003 NUT (2)
23 90407-ZV5-003 WASHER (1)
24 90408-ZV5-003 WASHER (2)
26 94301-10160 PIN, DOWEL (10X16)
27 95701-06028-02 BOLT, FLANGE (6X28)
28 95701-08045-02 BOLT, FLANGE (8X45)
STERN BRACKET (25 parts) STERN BRACKET
Ref OEM Part # Part Name
1 06411-ZV5-020 METAL KIT, ANODE
3 50311-ZV5-010ZA BRACKET, L. STERN *NH282MU* (OYSTER SILVER METALLIC-U)
5 50331-ZV5-000 CAP, TILTING BOLT
6 50335-ZV5-000 CAP ASSY.
8 50342-ZV5-300 STOPPER, ROD
9 50343-921-300 SPRING, ADJUSTING ROD
10 50381-ZZ5-000 SHAFT, TILTING
11 56118-ZV5-820 BUSH, MOTOR CODE
12 56513-ZV5-000 BUSH, CYLINDER (LOWER)
13 90108-ZV5-000 BOLT, HEX. (10X158)
14 90113-ZV5-000 BOLT, HEX. (6X25)
16 90304-ZV5-013 NUT, SELF-LOCK (7/8-14UNF)
17 90306-ZV5-003 NUT, SELF-LOCK (10MM)
18 90308-ZV5-003 NUT, SELF-LOCK (12MM)
19 90504-921-010 WASHER, PLAIN (6MM)
20 90506-ZV4-000 WASHER, PLAIN (6MM)
21 90517-ZV5-000 WASHER, WAVE (22MM)
22 90545-ZV5-000 WASHER, PLAIN (10MM)
23 90552-ZV5-000 WASHER, PLAIN (12MM)
24 90559-ZV5-000 WASHER, PLAIN (12MM)
25 90681-763-A01 CLIP, WIRE HARNESS
26 91352-ZV5-000 O-RING (15.54X2.62)
27 91556-ZZ5-C00 COLLAR, DISTANCE (10X90)
28 92101-06020-4J BOLT, HEX. (6X20)
29 94305-25083 PIN, SPRING (2.5X8)
SWIVEL CASE (20 parts) SWIVEL CASE
Ref OEM Part # Part Name
4 50151-ZV5-000 RUBBER, MOUNTING (UPPER)
5 50153-ZV5-000 RUBBER, MOUNTING (UPPER) (B)
8 50211-ZV5-003 LINER, SWIVEL CASE
10 50214-ZV5-003 BUSH, SWIVEL CASE
11 50233-881-000 SPRING, FRICTION ADJUSTING
12 50515-ZV5-000 SPRING, TILT LEVER
13 50522-ZV5-000 BUSH, TILT ARM
14 50527-ZV5-000 BRACKET, TILTING
16 90101-ZV1-000 BOLT, HEX. (6X18)
17 90101-ZV5-003 BOLT, SPECIAL (10X130)
19 90109-ZV4-000 BOLT, SPECIAL (8X20)
20 90109-ZV5-000 BOLT, STUD (10X28)
22 90306-ZW4-003 NUT, FLANGE (10MM)
25 90501-ZV5-000 WASHER, WAVE (40MM)
26 90504-ZV5-000 WASHER, THRUST (34MM)
27 90506-ZV4-000 WASHER, PLAIN (6MM)
30 90651-ZV5-000 CIRCLIP (OUTER) (39MM)
31 90951-ZV7-010 NIPPLE, GREASE
32 91256-ZV5-003 OIL SEAL (39.5X52X6) (ARAI)
34 94305-25203 PIN, SPRING (2.5X20)
TIMING BELT TENSIONER (14 parts) TIMING BELT TENSIONER
Ref OEM Part # Part Name
3 14323-ZV5-000 PLATE, TIMING BELT GUIDE
4 14400-ZV5-014 BELT, TIMING
6 14515-ZV5-000 CAP, TIMING BELT TENSIONER
7 14520-ZV5-020 SPRING, TIMING BELT ADJUSTING
8 14522-ZV5-000 BOOT, SPRING
10 30410-ZV5-000 ROTOR, PULSER (44T)
12 40102-ZV5-000 GROMMET, CASE (LOWER)
13 90031-ZV5-000 BOLT, FLANGE (10X32)
14 90202-ZV5-000 NUT, LOCK (48MM)
16 91553-ZV5-010 COLLAR, MODULE IGNITION CONTROL CASE (CDI)
17 94103-06200 WASHER, PLAIN (6MM)
18 95701-06025-02 BOLT, FLANGE (6X25)
19 95701-10038-08 BOLT, FLANGE (10X38)
20 96001-06012-02 BOLT, FLANGE (6X12)
TOOLS (7 parts) TOOLS
Ref OEM Part # Part Name
1 28470-816-000 ROPE, STARTER
5 89301-921-010 SCREWDRIVER, CHECK BOLT
6 99001-10120 SPANNER (10X12)
7 89210-GBJ-J10 PLIERS (135) (KOWA)
8 99003-10000 DRIVER 1, PLUS SCREW (NO.2)
9 99003-30000 DRIVER 3, MINUS SCREW (NO.2)
10 99003-40000 LEVER

100-Hour / Annual Service Checklist

Routine maintenance on the BF50 is straightforward and pays dividends in reliability and longevity. This checklist aligns with Honda's 100-hour / annual service recommendations and can be completed by any boat owner with basic tools.

  1. Change engine oil and replace the oil filter (if equipped).
  2. Replace all three spark plugs; verify the gap.
  3. Drain and refill lower-unit gear case oil; inspect for water or metal contamination.
  4. Replace the water pump impeller; inspect the housing and wear plate for grooves.
  5. Clean or replace the fuel filter; inspect fuel hoses, clamps, and the primer bulb.
  6. Clean the carburetor (carbureted models) or inspect EFI injectors and screens.
  7. Inspect and replace sacrificial anodes as needed.
  8. Inspect the propeller for dings, bends, or hub damage; grease the prop shaft splines.
  9. Lubricate all grease fittings, cables, and the steering system.
  10. Check the battery, terminal connections, and charging voltage output.

Pro Tips:

  • Flush the engine's cooling system with fresh water after every saltwater or muddy-water use. Five minutes of flushing through Honda's built-in port or with earmuff adapters keeps internal water passages clear of salt and sediment.
  • Apply marine anti-seize compound to the propeller shaft splines, spark plug threads, and anode mounting bolts during every service. This simple step prevents corrosion bonding and saves time at the next service interval.
View as

No products found

Compare /5

Loading...