🔎 Honda BF25 Resource Center — Browse exploded parts diagrams (33 diagrams), specifications, and maintenance tips below. Scroll down to shop replacement parts for your Honda BF25.
The Honda BF25 is a 25-horsepower, 3-cylinder, 4-stroke outboard that has long been one of the most popular engines in Honda Marine's portable-to-mid-range segment. Available in both tiller and remote-control configurations, the BF25 fits a wide variety of applications — from aluminum bass boats and rigid inflatable tenders to small pontoons and sailboat auxiliaries. Its compact 3-cylinder design delivers smooth power delivery and excellent fuel economy, and later EFI models add the convenience of easy cold starts and cleaner emissions.
Whether you are performing a quick seasonal tune-up or a full lower-unit rebuild, having access to accurate OEM replacement parts is essential. WoMarine.com carries a comprehensive selection of aftermarket marine parts for the Honda BF25, organized with exploded parts diagrams so every component is easy to identify and order. Our goal is to make DIY boat engine repair accessible, affordable, and reliable — so you spend more time on the water and less time tracking down parts.
Quick Reference Specifications
| Engine Type |
4-Stroke SOHC, 3-Cylinder, Carbureted / EFI (model dependent) |
| Displacement |
552 cc (33.7 cu in) |
| Bore x Stroke |
61 mm x 63 mm |
| Spark Plug (Type & Gap) |
NGK DPR6EA-9 / Gap: 0.8–0.9 mm (Refer to Owner's Manual) |
| Engine Oil Capacity |
Approx. 1.1 L |
| Recommended Engine Oil |
SAE 10W-30 (API SG or higher) |
| Gear Case Oil Capacity |
Approx. 330 mL |
| Idle Speed |
Refer to Owner's Manual |
| Full Throttle RPM Range |
5,000–6,000 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 BF25 is one of Honda's most dependable small outboards, but certain maintenance needs arise predictably over time:
-
Overheating / Water Pump Impeller Wear: The impeller is the heart of the cooling system. Replace it every season or 200 hours to prevent overheating, which can cause warped cylinder heads on even a small engine.
-
Carburetor Varnish (Carbureted Models): Fuel left in the carburetor during storage leads to jet blockage and hard starting. A carburetor rebuild kit and fresh fuel resolve most starting issues on older BF25 models.
-
Gear Case Oil Contamination: The lower-unit seals on the BF25 are small and susceptible to wear from fishing-line wrap and prop shaft vibration. Replace the seal kit when gear oil shows any sign of water intrusion.
-
Fuel Line & Primer Bulb Deterioration: Ethanol in gasoline accelerates the breakdown of rubber fuel components. Inspect and replace the fuel line, primer bulb, and in-tank filter annually.
-
Anode Depletion: Sacrificial zinc anodes on the lower unit and trim tab protect against galvanic corrosion. Replace when 50% consumed — often within a single saltwater season.
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 BF25.
▶CAMSHAFT (8 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
14481-ZV7-000 |
SPRING, ROCKER ARM A |
| 3 |
14482-ZV7-000 |
SPRING, ROCKER ARM B |
| 4 |
14621-ZV7-000 |
ARM, VALVE ROCKER |
| 5 |
14631-ZV7-000 |
SHAFT, IN. ROCKER ARM |
| 6 |
14636-ZV7-000 |
COLLAR, ROCKER |
| 7 |
14641-ZV7-000 |
SHAFT, EX. ROCKER ARM |
| 10 |
95801-06028-09 |
BOLT, FLANGE (6X28) |
| 11 |
96220-30168 |
ROLLER (3X16.8) |
▶CARBURETOR (40 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
16011-ZV4-005 |
VALVE SET, FLOAT |
| 5 |
16013-ZV4-005 |
FLOAT SET |
| 6 |
16016-ZV3-000 |
SCREW SET |
| 7 |
16023-ZV3-000 |
CHAMBER SET, FLOAT |
| 8 |
16024-ZY3-000 |
SCREW SET, DRAIN |
| 9 |
16028-ZV3-000 |
SCREW SET |
| 10 |
16029-ZV3-000 |
SCREW SET |
| 11 |
16052-KG4-003 |
SPRING, COMPRESSION COIL |
| 12 |
16071-ZV4-005 |
SCREW, PLUG |
| 13 |
16081-ZV4-650 |
SCREW-WASHER |
| 19 |
16150-ZV7-010 |
JET SET (#38) |
| 21 |
16211-ZW2-000 |
INSULATOR, CARBURETOR |
| 22 |
16221-ZW2-000 |
GASKET, CARBURETOR |
| 25 |
16574-ZV5-000 |
ARM A, CHOKE |
| 32 |
16881-ZV5-000 |
TUBE D, FUEL |
| 33 |
16960-ME9-000 |
PIPE, THREE WAY JOINT |
| 34 |
17100-ZV7-000ZA |
MANIFOLD ASSY., IN. *NH8* (DARK GRAY) |
| 35 |
17151-ZV7-000 |
GASKET, IN. MANIFOLD |
| 36 |
17202-ZV5-310 |
COLLAR, DISTANCE |
| 38 |
17384-ZV5-000 |
GASKET, MUFFLER PLATE |
| 39 |
17881-ZV5-010 |
PIPE, INSTALL |
| 40 |
17957-ZV4-000 |
BUSH, LINKAGE |
| 41 |
36135-ZV5-004 |
VALVE, DASHPOT CHECK |
| 42 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 43 |
90019-ZV1-010 |
BOLT, FLANGE (5X10) (CT200) |
| 44 |
90021-ZV5-000 |
BOLT, FLANGE (6X97) |
| 46 |
90511-ZV4-000 |
WASHER, PLAIN (6MM) |
| 47 |
90603-ZV4-000 |
CLIP, TUBE (B10) |
| 48 |
91503-ZV5-000 |
COLLAR, DISTANCE (6.5X10.5X16) |
| 50 |
93500-05010-0B |
SCREW, PAN (5X10) |
| 51 |
93500-06018-4J |
SCREW, PAN (6X18) |
| 52 |
95001-35003-60M |
BULK HOSE, FUEL (3.5X3000) (3.5X65) |
| 53 |
95001-35003-60M |
BULK HOSE, FUEL (3.5X3000) (3.5X65) |
| 54 |
95001-55003-60M |
BULK HOSE, FUEL (5.5X3000) (5.3X175) |
| 55 |
95001-55003-60M |
BULK HOSE, FUEL (5.5X3000) (5.3X175) |
| 56 |
95001-55003-60M |
BULK HOSE, FUEL (5.5X3000) (5.3X175) |
| 57 |
95003-05008-60M |
BULK HOSE, VINYL (3.5X6.5X8000) (3.5X6.5X130) (3.5X6.5X8000) (9500(95003-05 |
| 58 |
95701-06028-02 |
BOLT, FLANGE (6X28) |
| 59 |
96220-60150 |
ROLLER (6X15) |
| 60 |
99101-ZV5-1000 |
JET, MAIN (#100) |
▶CHARGE RECEPTACLE KIT (1) (10 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06310-ZV7-020 |
RECEPTACLE KIT, CHARGE (6A) |
| 2 |
30564-ZA5-000 |
GROMMET, WIRE |
| 7 |
31652-881-024 |
PLUG, RECEPTACLE |
| 9 |
38207-ZV4-000 |
FUSE, SPARE (15A) |
| 10 |
40107-ZV7-000 |
GROMMET, CASE (LOWER) (C) |
| 11 |
87512-ZV4-A21 |
MARK, RECEPTACLE (6A) |
| 12 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 13 |
90014-ZV1-010 |
BOLT, FLANGE (5X22) |
| 15 |
90672-SA0-003 |
STRAP, CABLE (118MM) (BLACK) |
| 16 |
95701-06020-02 |
BOLT, FLANGE (6X20) |
▶CHARGE RECEPTACLE KIT (2) (9 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
30564-ZA5-000 |
GROMMET, WIRE |
| 7 |
31652-881-024 |
PLUG, RECEPTACLE |
| 9 |
38207-ZV4-000 |
FUSE, SPARE (15A) |
| 10 |
40107-ZV7-000 |
GROMMET, CASE (LOWER) (C) |
| 11 |
87512-ZV4-831 |
MARK, RECEPTACLE (10A) |
| 12 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 13 |
90014-ZV1-010 |
BOLT, FLANGE (5X22) |
| 15 |
90672-SA0-003 |
STRAP, CABLE (118MM) (BLACK) |
| 16 |
95701-06020-02 |
BOLT, FLANGE (6X20) |
▶CRANKSHAFT (8 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
13010-ZV4-004 |
RING SET, PISTON (STD) |
| 5 |
13213-KV0-000 |
BOLT, CONNECTING ROD |
| 6 |
13215-KM3-000 |
NUT, CONNECTING ROD |
| 7 |
13219-333-003 |
BEARING E, CONNECTING ROD (RED) |
| 9 |
13318-MJ0-000 |
BEARING D, MAIN (17MM) (RED) |
| 10 |
13331-ZW2-F01 |
WASHER, THRUST |
| 13 |
90741-ZV4-000 |
KEY, SPECIAL (16X15) |
| 14 |
94601-14000 |
CLIP, PISTON PIN (14MM) |
▶CYLINDER BLOCK (19 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
11911-ZV7-020 |
HANGER, ENGINE |
| 5 |
15142-PE0-000 |
O-RING (4.8X1.9) |
| 6 |
15150-ZV5-000 |
ORIFICE ASSY., OIL PASSAGE |
| 8 |
19300-ZV5-043 |
THERMOSTAT ASSY. |
| 9 |
19315-ZV5-010 |
COVER, THERMOSTAT |
| 11 |
19361-ZV7-000ZA |
COVER, WATER JACKET *NH8* (DARK GRAY) |
| 12 |
19371-ZV7-000 |
GASKET, WATER JACKET COVER |
| 13 |
24626-ZV5-010 |
PLATE, SHIFT SHAFT |
| 14 |
37240-P13-013 |
SWITCH ASSY., OIL PRESSURE (DENSO) |
| 16 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 18 |
90018-PN3-000 |
HOLDER, OIL FILTER |
| 19 |
90020-ZV5-000 |
BOLT, FLANGE (6X22) |
| 21 |
91201-ZE3-004 |
OIL SEAL (35X52X8) |
| 22 |
91262-SL4-005 |
OIL SEAL (44.5X60.5X8) (NOK) |
| 23 |
93500-06018-4J |
SCREW, PAN (6X18) |
| 24 |
94301-10120 |
PIN, DOWEL (10X12) |
| 25 |
94303-06100 |
PIN, DOWEL (6X10) |
| 26 |
95701-06040-02 |
BOLT, FLANGE (6X40) |
| 27 |
95701-08018-02 |
BOLT, FLANGE (8X18) |
▶CYLINDER HEAD (20 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
12209-KL4-005 |
SEAL, VALVE STEM (NOK) |
| 5 |
12212-ZV7-000 |
PLATE, OIL CHAMBER |
| 6 |
12228-ZV7-000 |
BOLT, FLANGE (8X83) |
| 7 |
12251-ZV7-004 |
GASKET, CYLINDER HEAD |
| 9 |
12312-ZV7-010 |
GASKET, HEAD COVER |
| 10 |
12314-ZV5-300 |
COLLAR, HEAD COVER |
| 14 |
14771-ZV1-000 |
RETAINER, VALVE SPRING |
| 15 |
14775-028-010 |
SEAT, VALVE SPRING |
| 18 |
15611-ZV4-000 |
CAP, OIL |
| 19 |
16700-ZW1-004 |
PUMP ASSY., FUEL (MSDS) |
| 20 |
16716-ZV5-000 |
LIFTER, FUEL PUMP |
| 22 |
90006-ZV5-000 |
BOLT, STUD (6X28) |
| 25 |
91301-805-000 |
O-RING (26X2.7) |
| 27 |
91307-PH7-660 |
O-RING (13.5X1.4) |
| 28 |
90601-ZV3-030 |
CLAMP, TUBE (D17) |
| 29 |
94301-10120 |
PIN, DOWEL (10X12) |
| 30 |
95701-06012-00 |
BOLT, FLANGE (6X12) |
| 31 |
95701-06035-02 |
BOLT, FLANGE (6X35) |
| 32 |
95701-08040-02 |
BOLT, FLANGE (8X40) |
| 33 |
96001-06020-02 |
BOLT, FLANGE (6X20) |
▶CYLINDER HEAD ASSEMBLY (0 parts)
▶ENGINE COVER (23 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
19271-ZV5-000 |
JOINT, WATER HOSE |
| 5 |
37210-ZV4-003 |
LAMP ASSY., INDICATOR |
| 7 |
40106-ZV5-000 |
GROMMET, CASE (LOWER) (B) |
| 8 |
40107-ZV7-750 |
GROMMET, CASE (LOWER) (C) |
| 9 |
40109-ZV4-010 |
GROMMET, OIL CASE (E) |
| 11 |
40151-ZV7-000ZA |
CASE, SEPARATE *NH282MU* (OYSTER SILVER METALLIC-U) |
| 14 |
63102-ZV7-300 |
SEAL, ENGINE COVER |
| 16 |
63240-ZV5-000 |
LEVER, FASTENER |
| 17 |
82873-ZV5-000 |
GROMMET, WATER CHECK |
| 18 |
90010-ZV5-000 |
BOLT, HEX. (8X55) |
| 19 |
90010-ZV7-000 |
BOLT, HEX. (8X80) |
| 20 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 21 |
90015-ZV0-000 |
BOLT, FLANGE (6X28) (CT200) |
| 22 |
90121-ZV4-000 |
BOLT, HEX. (6X45) |
| 23 |
90301-473-003 |
NUT, U (6MM) (FUSE RASHI) |
| 24 |
90304-881-010 |
NUT (6MM) |
| 25 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 26 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 27 |
90512-921-010 |
WASHER (6MM) |
| 28 |
90602-921-000 |
CLIP, TUBE (B8) |
| 30 |
91221-ZV5-005 |
SEAL, WATER (17X26X7) |
| 31 |
91309-PJ7-010 |
O-RING (11.5X3.5) |
| 33 |
95701-08070-00 |
BOLT, FLANGE (8X70) |
▶EXTENSION CASE (31 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06412-ZV5-000 |
TAB KIT, TRIM |
| 2 |
19280-ZV5-000 |
TUBE, WATER (LOWER) |
| 3 |
19286-ZV5-000 |
PLATE, RUBBER SETTING |
| 4 |
40201-ZV7-722ZA |
CASE, EXTENSION *NH282MU* (L) (OYSTER SILVER METALLIC-U) |
| 6 |
40209-ZV5-000 |
RUBBER, DRAIN PLUG |
| 8 |
40219-ZY3-023 |
WIRE, LEAD (1.5X116MM) |
| 10 |
41104-ZV5-000 |
SCREEN, R. WATER |
| 11 |
41105-ZV5-000 |
SCREEN, L. WATER |
| 12 |
41107-ZV5-000 |
TAB, TRIM |
| 13 |
41108-ZV4-000 |
SCREEN, WATER (LOWER) |
| 14 |
50111-ZV5-000ZA |
HOUSING, R. MOUNTING (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U) |
| 15 |
50155-ZV5-000 |
RUBBER, MOUNT (LOWER) |
| 16 |
50161-ZV5-010ZA |
HOUSING, CENTER MOUNTING (LOWER) *NH282MU* (OYSTER SILVER METALLIC-U) |
| 17 |
90009-ZV5-000 |
BOLT, HEX. (8X35) |
| 18 |
90105-ZVA-000 |
BOLT, OIL CHECK |
| 19 |
90106-ZV4-010 |
BOLT, STUD (5X12) |
| 20 |
90115-ZV5-000 |
BOLT, HEX. (8X25) |
| 21 |
90118-ZV5-000 |
BOLT, HEX. (12X162) |
| 22 |
90119-ZV5-000 |
SCREW, PAN (6X8) |
| 23 |
90120-ZV5-003 |
BOLT, DRAIN PLUG (8MM) |
| 24 |
90123-ZV5-010 |
BOLT, HEX. (10X40) |
| 25 |
90126-ZV5-000 |
BOLT, HEX. (8X20) |
| 26 |
90302-ZV4-000 |
NUT, SELF-LOCK (5MM) |
| 27 |
90308-ZV5-003 |
NUT, SELF-LOCK (12MM) |
| 28 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 30 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 32 |
90552-ZV5-000 |
WASHER, PLAIN (12MM) |
| 33 |
90559-ZV5-000 |
WASHER, PLAIN (12MM) |
| 34 |
90563-ZV5-000 |
WASHER, PLAIN (10MM) |
| 36 |
90756-ZV5-000 |
PIN, DOWEL (6X10) |
| 37 |
93700-05028-4J |
SCREW, OVAL (5X28) |
▶FLYWHEEL (3 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
28451-ZV7-003 |
PULLEY, STARTER |
| 7 |
90016-920-000 |
BOLT, FLANGE (6X12) |
| 8 |
90121-ZV0-010 |
BOLT, FLANGE (6X25) |
▶FUEL TANK (16 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
04802-ZV5-A00 |
FUEL JOIN, SET |
| 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 (13 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
11381-ZV7-020 |
GASKET, OIL PAN |
| 2 |
12251-ZV7-004 |
GASKET, CYLINDER HEAD |
| 3 |
12312-ZV7-010 |
GASKET, HEAD COVER |
| 4 |
15142-PE0-000 |
O-RING (4.8X1.9) |
| 5 |
16221-ZW2-000 |
GASKET, CARBURETOR |
| 6 |
17151-ZV7-000 |
GASKET, IN. MANIFOLD |
| 7 |
17384-ZV5-000 |
GASKET, MUFFLER PLATE |
| 8 |
17394-ZV5-000 |
GASKET, MUFFLER COVER |
| 9 |
18333-ZV7-000 |
GASKET, EX. PIPE |
| 11 |
19371-ZV7-000 |
GASKET, WATER JACKET COVER |
| 12 |
23162-ZV7-010 |
GASKET, ENGINE CASE (LOWER) |
| 14 |
91301-805-000 |
O-RING (26X2.7) |
| 15 |
91302-ZV7-000 |
O-RING, PUMP COVER |
▶GASKET KIT (SHORT BLOCK & HEAD ASSY.) (0 parts)
▶GEAR CASE (0 parts)
▶HANDLEBAR (33 parts)
| Ref |
OEM Part # |
Part Name |
| 7 |
24617-ZV3-010 |
PLATE, SHIFT LINK (A) |
| 9 |
24626-ZV5-010 |
PLATE, SHIFT SHAFT |
| 11 |
35180-ZV7-033 |
SWITCH ASSY., EMERGENCY STOP |
| 12 |
36182-ZV4-651 |
WIRE, EMERGENCY |
| 13 |
36187-ZV4-652 |
CLIP, EMERGENCY LOCK |
| 15 |
50281-ZV3-000ZA |
HANDLE, CARRYING *NH282MU* (OYSTER SILVER METALLIC-U) |
| 16 |
50285-ZV4-000 |
GROMMET, CARRYING HANDLE |
| 19 |
53104-ZV3-000 |
BOLT, FRICTION |
| 21 |
53109-ZV3-000 |
RUBBER, HANDLE MOUNTING |
| 22 |
53111-ZV3-010 |
PLATE, HANDLEBAR |
| 24 |
53148-ZV3-000 |
SPRING, GRIP PIPE |
| 25 |
53165-ZV4-000 |
RUBBER, GRIP |
| 26 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 27 |
90119-ZV5-000 |
SCREW, PAN (6X8) |
| 28 |
90123-ZV3-000 |
SCREW, PAN (5X12) |
| 29 |
90127-ZV4-000 |
BOLT, HEX. (6X16) |
| 30 |
90205-PP9-020 |
NUT, SELF-LOCK (6MM) |
| 31 |
90302-921-000 |
NUT, HEX. (16MM) |
| 32 |
90306-ZV5-003 |
NUT, SELF-LOCK (10MM) |
| 33 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 34 |
90506-ZV1-000 |
WASHER, WAVE (14MM) |
| 35 |
90515-ZV3-000 |
WASHER, HANDLEBAR (36MM) |
| 36 |
90543-ZV3-000 |
WASHER (10MM) |
| 37 |
90563-ZV5-000 |
WASHER, PLAIN (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) (16 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
30500-ZW2-F01 |
COIL ASSY., IGNITION |
| 3 |
30511-ZV7-003 |
COIL, IGNITION (1) |
| 4 |
30512-ZV7-003 |
COIL, IGNITION (2) |
| 5 |
30513-ZW2-F01 |
COIL, IGNITION (3) |
| 6 |
30516-ZV5-003 |
SUSPENSION, IGNITION COIL |
| 9 |
30588-ZV5-013 |
COVER, IGNITION CONTROL MODULE (CDI) |
| 10 |
30598-ZV5-000 |
GROMMET, MODULE IGNITION CONTROL CASE (CDI)(B) |
| 12 |
32106-ZV5-010 |
BRACKET, CONNECTOR (A) |
| 15 |
32805-413-000 |
CLIP, TURN SIGNAL WIRE |
| 16 |
37204-ZV7-010 |
WIRE, SWITCH (385MM) |
| 17 |
40102-ZV5-000 |
GROMMET, CASE (LOWER) |
| 18 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 19 |
90121-ZV0-010 |
BOLT, FLANGE (6X25) |
| 20 |
91553-ZV5-010 |
COLLAR, MODULE IGNITION CONTROL CASE (CDI) |
| 21 |
94103-06200 |
WASHER, PLAIN (6MM) |
| 22 |
95701-06020-02 |
BOLT, FLANGE (6X20) |
▶MARKS (8 parts)
| Ref |
OEM Part # |
Part Name |
| 5 |
87131-ZV7-010 |
MARK, SIDE |
| 6 |
87132-ZV4-A02 |
MARK, SIDE STRIPE (HONDA) |
| 7 |
87152-ZV7-000 |
LABEL, SPECIFICATION |
| 8 |
87227-ZV7-000 |
MARK, OIL PRESSURE |
| 9 |
87511-ZV5-620 |
MARK, CHANGE (ENGLISH) |
| 11 |
87531-ZV7-000 |
LABEL, OIL CAUTION (ENGLISH) |
| 13 |
87535-ZV5-620 |
LABEL, STORING CAUTION (ENGLISH) |
| 14 |
87538-ZW1-740 |
LABEL, WARNING OPERATOR (ENGLISH) |
▶MUFFLER COVER (5 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
17394-ZV5-000 |
GASKET, MUFFLER COVER |
| 12 |
90545-323-700 |
WASHER (6.5X18) |
| 14 |
90601-ZV3-030 |
CLAMP, TUBE (D17) |
| 15 |
95701-06025-02 |
BOLT, FLANGE (6X25) |
| 16 |
95701-06040-02 |
BOLT, FLANGE (6X40) |
▶OIL PAN (8 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
11311-ZV7-030ZA |
PAN, OIL *TGRAY* (GRAY) |
| 2 |
11381-ZV7-020 |
GASKET, OIL PAN |
| 3 |
15650-ZV7-000 |
DIPSTICK, OIL |
| 4 |
23162-ZV7-010 |
GASKET, ENGINE CASE (LOWER) |
| 5 |
90113-ZV5-000 |
BOLT, HEX. (6X25) |
| 6 |
90131-ZV5-000 |
BOLT, DRAIN PLUG |
| 7 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 8 |
90601-ZE2-000 |
WASHER, DRAIN PLUG (12MM) |
▶OIL PUMP (21 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
15111-ZV7-000 |
BODY, OIL PUMP |
| 3 |
15121-ZV7-000 |
COVER, OIL PUMP |
| 4 |
15136-ZV7-000 |
SHAFT, OIL PUMP |
| 5 |
15220-ZV7-000 |
STRAINER, OIL |
| 6 |
15231-413-020 |
VALVE, RELIEF |
| 7 |
15232-KT8-000 |
SPRING, RELIEF VALVE |
| 8 |
15236-ZV5-010 |
BOLT, SEALING (14MM) |
| 9 |
15302-PE0-300 |
WASHER, SEALING (14MM) |
| 12 |
18330-ZV7-010 |
PIPE, EX. |
| 14 |
19252-ZV5-000 |
GROMMET, WATER TUBE |
| 15 |
90017-ZV0-000 |
BOLT, FLANGE (6X18) |
| 16 |
90101-ZV1-000 |
BOLT, HEX. (6X18) |
| 17 |
90105-881-000 |
BOLT, HEX. (6X12) |
| 18 |
90115-ZV5-000 |
BOLT, HEX. (8X25) |
| 19 |
90456-333-000 |
WASHER, THRUST (11MM) |
| 20 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 21 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 23 |
91302-ZV7-000 |
O-RING, PUMP COVER |
| 24 |
95701-06016-00 |
BOLT, FLANGE (6X16) |
| 25 |
95701-06045-02 |
BOLT, FLANGE (6X45) |
| 26 |
96220-40158 |
ROLLER (4X15.8) |
▶OUTBOARD INSTALLATION KIT (5 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06413-ZV7-000 |
INSTALLATION KIT, OUTBOARD |
| 2 |
90129-ZV7-000 |
BOLT, HEX. (10X100) |
| 3 |
90306-ZV5-003 |
NUT, SELF-LOCK (10MM) |
| 4 |
90552-ZV7-000 |
WASHER, PLAIN (10MM) |
| 5 |
90563-ZV5-000 |
WASHER, PLAIN (10MM) |
▶PROPELLER (22 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
24102-ZV7-000 |
PIN, SHIFTER |
| 3 |
24103-ZV7-000 |
RING, CROSS PIN |
| 4 |
24106-ZV5-000 |
HOLDER, SHIFTER PIN |
| 5 |
24122-ZV7-000 |
SLIDER, SHIFT |
| 6 |
24123-ZV5-003 |
SPRING, SHIFT |
| 7 |
41145-ZV7-010 |
GEAR, FR. BEVEL |
| 9 |
41160-ZV7-000 |
SHAFT ASSY., PROPELLER (NOT AVAILABLE) |
| 11 |
58130-ZV7-850ZA |
PROPELLER, THREE-BLADE (9-3/4X9-7/8) *NH283* (STIN GRAY) |
| 12 |
90124-ZV4-000 |
BOLT, HEX. (6X20) |
| 13 |
90301-ZV7-000 |
NUT, CASTLE |
| 14 |
90503-ZV5-000 |
WASHER (22MM) |
| 15 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 16 |
90506-ZV7-020 |
WASHER, PROPELLER THRUST |
| 17 |
90508-ZV7-000 |
WASHER |
| 18 |
90531-ZV5-000 |
SHIM, FR. BEVEL (51X57X0.50) (D) |
| 19 |
90758-ZV1-000 |
PIN, SPLIT |
| 20 |
91051-ZV5-003 |
BEARING (32X58X17) |
| 21 |
91053-ZV5-003 |
BEARING, NEEDLE (22X28X20) |
| 22 |
91062-HA7-672 |
BEARING, RADIAL BALL (32X58X13) (KOYO) |
| 23 |
91252-ZV5-003 |
SEAL, WATER (22X35X7) |
| 24 |
91351-ZV7-003 |
O-RING (64X3) |
| 25 |
96211-11000 |
BALL, STEEL (#11) (11/32) |
▶RECOIL STARTER (19 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
28418-ZV7-003 |
GUIDE, RECOIL STARTER |
| 6 |
28424-ZV7-003 |
PLATE |
| 7 |
28427-ZV7-003 |
BUSH |
| 8 |
28428-ZV7-003 |
E-RING |
| 10 |
28432-ZV4-003 |
WASHER |
| 11 |
28433-ZV7-003 |
WASHER, THRUST |
| 12 |
28435-ZV4-003 |
STOPPER, REEL |
| 13 |
28436-ZV4-003 |
ARM, STOPPER |
| 14 |
28437-ZV4-003 |
SPRING, STOPPER |
| 15 |
28438-ZV4-003 |
PIN, SPLIT |
| 16 |
28439-ZV7-003 |
SPACER |
| 17 |
28441-ZV7-003 |
SPRING, FRICTION |
| 18 |
28442-ZV7-003 |
SPRING, RECOIL STARTER |
| 21 |
28461-ZV4-013 |
GRIP, STARTER |
| 23 |
28471-ZV7-003 |
ROLLER, STARTER |
| 24 |
28476-ZV7-003 |
GUIDE, ROLLER |
| 25 |
90021-ZV7-003 |
BOLT (6X20) |
| 26 |
90022-ZV4-003 |
BOLT, HEX. (6X14) |
| 27 |
95701-06022-02 |
BOLT, FLANGE (6X22) |
▶SHIFT SHAFT (14 parts)
| Ref |
OEM Part # |
Part Name |
| 4 |
16915-ZV4-000 |
SUSPENSION, STRAINER |
| 6 |
17940-ZV7-000 |
CABLE, NEUTRAL STARTING |
| 8 |
24210-ZV1-010 |
SPRING, CLICK |
| 9 |
24221-ZV4-010 |
SPRING, CLICK ASSIST |
| 10 |
24610-ZV7-010 |
SHAFT, SHIFT |
| 11 |
24611-ZV7-300 |
SHAFT, SHIFT |
| 12 |
24621-ZV4-010 |
BUSH, SHAFT |
| 13 |
24625-ZV5-010 |
PLATE, SHIFT |
| 14 |
24626-ZV5-010 |
PLATE, SHIFT SHAFT |
| 18 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 19 |
90019-ZV1-010 |
BOLT, FLANGE (5X10) (CT200) |
| 22 |
90603-ZV4-000 |
CLIP, TUBE (B10) |
| 23 |
90628-750-000 |
CLIP (14MM) |
| 25 |
94305-30203 |
PIN, SPRING (3X20) |
▶SHORT BLOCK (0 parts)
▶STERN BRACKET (18 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
50122-935-010 |
PLATE, PUSH |
| 2 |
50300-ZW9-832ZA |
BRACKET, R. STERN *NH282MU* (OYSTER SILVER METALLIC-U) |
| 3 |
50310-ZW9-833ZA |
BRACKET, L. STERN *NH282MU* (OYSTER SILVER METALLIC-U) |
| 4 |
50323-ZV4-310ZB |
GRIP, CLAMP *NH282MU* (OYSTER SILVER METALLIC-U) |
| 6 |
50331-ZV5-000 |
CAP, TILTING BOLT |
| 8 |
50340-ZV7-010 |
ROD, ADJUSTING |
| 9 |
50341-ZV7-310 |
ROD, ADJUSTING |
| 10 |
50342-ZV5-300 |
STOPPER, ROD |
| 11 |
50343-ZV7-300 |
SPRING, ADJUSTING ROD |
| 12 |
50381-ZZ5-000 |
SHAFT, TILTING |
| 13 |
90108-ZV7-000 |
BOLT, HEX. (8X163) |
| 14 |
90304-ZV5-013 |
NUT, SELF-LOCK (7/8-14UNF) |
| 15 |
90305-ZV4-000 |
NUT, SELF-LOCK (8MM) |
| 16 |
90507-ZV4-000 |
WASHER, PLAIN (8MM) |
| 17 |
90517-ZV5-000 |
WASHER, WAVE (22MM) |
| 19 |
91501-ZV7-000 |
COLLAR, DISTANCE (8MM) |
| 20 |
94305-25083 |
PIN, SPRING (2.5X8) |
| 21 |
94305-40143 |
PIN, SPRING (4X14) |
▶SWIVEL CASE (32 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
50151-ZV5-000 |
RUBBER, MOUNTING (UPPER) |
| 4 |
50153-ZV5-000 |
RUBBER, MOUNTING (UPPER) (B) |
| 5 |
50167-ZV7-000ZA |
HOLDER, MOUNTING (UPPER) *NH282MU* (OYSTER SILVER METALLIC-U) |
| 6 |
50201-ZW2-F30ZA |
CASE, SWIVEL *NH282MU* (OYSTER SILVER METALLIC-U) |
| 7 |
50211-ZV5-003 |
LINER, SWIVEL CASE |
| 9 |
50214-ZV5-003 |
BUSH, SWIVEL CASE |
| 10 |
50233-881-000 |
SPRING, FRICTION ADJUSTING |
| 14 |
50516-ZV4-300 |
SPRING, TILT LINK |
| 16 |
50518-ZV7-000 |
ARM, REVERSE LOCK |
| 19 |
50521-ZV1-000 |
BUSH, TILT LEVER |
| 20 |
50522-ZV4-000 |
BUSH, TILT LEVER |
| 22 |
50526-ZV4-000 |
BRACKET, TILT SHAFT |
| 25 |
50531-ZV7-000 |
SHAFT, REVERSE LOCK (A) |
| 26 |
50532-ZV4-000 |
SHAFT, REVERSE LOCK (B) |
| 29 |
90101-ZV1-000 |
BOLT, HEX. (6X18) |
| 30 |
90101-ZV5-003 |
BOLT, SPECIAL (10X130) |
| 32 |
90109-ZV4-000 |
BOLT, SPECIAL (8X20) |
| 33 |
90109-ZV5-000 |
BOLT, STUD (10X28) |
| 35 |
90306-ZW4-003 |
NUT, FLANGE (10MM) |
| 38 |
90501-ZV5-000 |
WASHER, WAVE (40MM) |
| 39 |
90504-ZV5-000 |
WASHER, THRUST (34MM) |
| 40 |
90504-921-010 |
WASHER, PLAIN (6MM) |
| 41 |
90505-ZV4-000 |
WASHER, LOCK |
| 42 |
90506-ZV4-000 |
WASHER, PLAIN (6MM) |
| 45 |
90651-ZV5-000 |
CIRCLIP (OUTER) (39MM) |
| 46 |
90759-ZV1-000 |
PIN, SPLIT (2.0) |
| 47 |
90951-ZV7-010 |
NIPPLE, GREASE |
| 48 |
91256-ZV5-003 |
OIL SEAL (39.5X52X6) (ARAI) |
| 50 |
94002-06490-0S |
NUT, HEX. (6MM) |
| 51 |
94305-25223 |
PIN, SPRING (2.5X22) |
| 52 |
94305-25253 |
PIN, SPRING (2.5X25) |
| 53 |
94305-30253 |
PIN, SPRING (3X25) |
▶THROTTLE ROD (15 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
16400-ZV5-015 |
DIAPHRAGM ASSY. |
| 2 |
17838-ZV5-000 |
LINKAGE, PIVOT |
| 3 |
17840-ZV7-000 |
ROD, THROTTLE |
| 4 |
17927-ZV5-000 |
PLATE, ASSIST |
| 5 |
17928-ZV5-000 |
SPRING, ASSIST |
| 6 |
17937-ZV5-010 |
CAM, THROTTLE OPENER |
| 7 |
17938-ZV5-000 |
SPRING, OPENER CAM RETURN |
| 8 |
17946-ZV5-000 |
CAM, THROTTLE |
| 9 |
90011-ZV5-003 |
BOLT, TORX (6X14) |
| 10 |
90202-ZV0-000 |
NUT, CAP (6MM) |
| 11 |
90511-ZV4-000 |
WASHER, PLAIN (6MM) |
| 12 |
91504-ZV5-000 |
COLLAR (6.7X12.5X24) |
| 13 |
94001-05490-0S |
NUT, HEX. (5MM) |
| 14 |
95701-06032-02 |
BOLT, FLANGE (6X32) |
| 15 |
95701-06040-02 |
BOLT, FLANGE (6X40) |
▶TIMING BELT (12 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
14315-ZV7-000 |
PULLEY, TIMING |
| 3 |
14323-ZV7-000 |
PLATE, TIMING BELT GUIDE |
| 4 |
14400-ZV7-014 |
BELT, TIMING |
| 6 |
14515-ZV5-000 |
CAP, TIMING BELT TENSIONER |
| 7 |
14520-ZV7-010 |
SPRING, TIMING BELT ADJUSTING |
| 8 |
14522-ZV5-000 |
BOOT, SPRING |
| 13 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 15 |
90202-ZV7-000 |
NUT, LOCK (34MM) |
| 18 |
94301-10160 |
PIN, DOWEL (10X16) |
| 19 |
95701-06022-02 |
BOLT, FLANGE (6X22) |
| 20 |
95701-08025-02 |
BOLT, FLANGE (8X25) |
| 21 |
95701-10038-08 |
BOLT, FLANGE (10X38) |
▶TOOLS (7 parts)
| 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 |
▶WATER HOSE JOINT (4 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06190-ZV1-860 |
JOINT KIT, WATER HOSE |
| 2 |
19270-881-812 |
NUT, WATER MOUTH |
| 3 |
19271-ZV1-810 |
JOINT, WATER HOSE |
| 4 |
19272-881-810 |
SEAT, WATER MOUTH |
▶WATER PUMP (35 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
19210-ZV7-003 |
IMPELLER, PUMP |
| 2 |
19221-ZV5-000 |
HOUSING, IMPELLER |
| 3 |
19223-ZV5-000 |
LINER, PUMP |
| 4 |
19231-ZV7-000 |
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-ZV7-721 |
TUBE, WATER (L) |
| 9 |
19253-ZV5-000 |
RING, WATER TUBE SEAL |
| 10 |
24310-ZV7-723 |
ROD, SHIFT (L) |
| 12 |
24312-ZV7-000 |
JOINT, SHIFT ROD |
| 13 |
24320-ZV7-000 |
ROD A, SHIFT |
| 16 |
40204-ZV5-000 |
GROMMET, EXTENSION CASE |
| 17 |
41112-ZV7-720 |
SHAFT, VERTICAL (L) |
| 18 |
41116-ZV5-000 |
SLINGER, OIL |
| 19 |
41131-ZV7-000 |
PINION |
| 20 |
90105-881-000 |
BOLT, HEX. (6X12) |
| 21 |
90114-881-000 |
BOLT, HEX. (6X40) |
| 22 |
90303-ZV7-000 |
NUT, SPECIAL (10MM) |
| 23 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 24 |
90512-ZV4-000 |
WASHER, PLAIN (6MM) |
| 25 |
90512-921-010 |
WASHER (6MM) |
| 26 |
90521-ZV5-000 |
SHIM, GEAR (40X46X0.50) (D) |
| 27 |
90752-ZV7-000 |
KEY, WOODRUFF (5MM) |
| 28 |
90754-921-010 |
PIN (5X17) |
| 29 |
90756-921-000 |
PIN, SPLIT (1.6MM) |
| 30 |
91052-ZV5-003 |
BEARING, NEEDLE (7/8X11/8X1) |
| 31 |
91054-ZV5-003 |
BEARING (25X47X15) |
| 32 |
91251-ZV5-003 |
SEAL, WATER (17X30X7) |
| 33 |
91253-921-003 |
SEAL, WATER (6MM) |
| 36 |
91356-ZV5-000 |
O-RING, WATER PUMP |
| 37 |
91555-ZV5-000 |
COLLAR, IMPELLER HOUSING |
| 38 |
94001-06490-0S |
NUT, HEX. (6MM) |
| 39 |
94305-20122 |
PIN, SPRING (2X12) |
| 40 |
96220-25138 |
ROLLER (2.5X13.8) |
100-Hour / Annual Service Checklist
A little routine care goes a long way with the Honda BF25. This checklist mirrors Honda's recommended 100-hour / annual service interval and can be completed in a couple of hours with basic hand tools.
- Change engine oil and replace the oil filter (if equipped).
- Replace all three spark plugs and verify the gap.
- Drain and refill lower-unit gear case oil; check for water or metal contamination.
- Replace the water pump impeller; inspect the housing and wear plate.
- Clean or replace the fuel filter; inspect fuel lines, connectors, and the primer bulb.
- Clean the carburetor (carbureted models) or inspect injector screens (EFI models).
- Inspect and replace sacrificial anodes as needed.
- Inspect the propeller for dings, bends, and fishing-line wrap on the shaft.
- Lubricate throttle and shift cables, prop shaft splines, and all grease fittings.
Pro Tips:
- Flush the cooling system with fresh water after every saltwater trip using earmuff-style flush adapters or a flush barrel. Even a quick five-minute flush dramatically extends the life of internal water passages.
- Before off-season storage, add fuel stabilizer to a full tank, run the engine for five minutes to circulate treated fuel, and then fog the cylinders with engine storage spray if storing for more than three months.