🔎 Honda BF4 Resource Center — Browse exploded parts diagrams (25 diagrams), specifications, and maintenance tips below. Scroll down to shop replacement parts for your Honda BF4.
The Honda BF4 is a 4-horsepower, single-cylinder, 4-stroke portable outboard — one of the lightest and most practical micro engines in Honda Marine's lineup. Weighing approximately 13 kg (29 lbs) with its built-in fuel tank, the BF4 is the engine of choice for inflatable dinghies, canoes, kayaks, and small sailboat auxiliaries where portability, simplicity, and quiet operation are paramount. Its air-cooled (or water-cooled in select variants) 4-stroke design eliminates the need for oil mixing and produces minimal emissions, making it a favorite for eco-conscious boaters and tender operators.
Even the smallest outboards need proper maintenance and quality parts to stay reliable. WoMarine.com stocks OEM replacement parts and aftermarket marine parts for the Honda BF4, organized with exploded parts diagrams so you can quickly find impellers, spark plugs, gaskets, and fuel system components. Whether you are a yacht crew member performing routine tender maintenance or a recreational paddler adding a DIY boat engine repair to your skill set, our catalog makes sourcing the right part fast and affordable.
Quick Reference Specifications
| Engine Type |
4-Stroke OHV, Single Cylinder, Air-Cooled / Water-Cooled (model dependent) |
| Displacement |
127 cc (7.7 cu in) |
| Bore x Stroke |
57 mm x 50 mm |
| Spark Plug (Type & Gap) |
NGK CR5HSB / Gap: 0.6–0.7 mm (Refer to Owner's Manual) |
| Engine Oil Capacity |
Approx. 0.25 L |
| Recommended Engine Oil |
SAE 10W-30 (API SG or higher) |
| Gear Case Oil Capacity |
Approx. 80 mL |
| Idle Speed |
Refer to Owner's Manual |
| Full Throttle RPM Range |
4,500–5,500 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 BF4 is a simple, robust engine, but its small passages and components can be sensitive to neglect. Here are the most commonly encountered issues:
-
Hard Starting / No Start After Storage: Stale fuel and a varnished carburetor are the number-one cause of starting problems. Drain old fuel, install a fresh spark plug, and clean or rebuild the carburetor with a rebuild kit to restore reliable ignition.
-
Overheating (Water-Cooled Models): On water-cooled BF4 variants, the tiny impeller must be replaced annually. Even a single missing vane can dramatically reduce cooling flow in a single-cylinder engine.
-
Air Intake Blockage (Air-Cooled Models): The cooling fins and air intake screen must be kept clean. Debris buildup causes the engine to run hot and can lead to premature wear.
-
Shear Pin Breakage: The BF4 uses a shear pin to protect the drivetrain from prop strikes. Always carry spare shear pins and cotter pins on every outing.
-
Fuel Valve & Cap Seal Leaks: The built-in fuel tank cap gasket and fuel valve O-ring dry out over time. Replace these inexpensive seals to prevent fuel drips and odor.
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 BF4.
▶CAMSHAFT (13 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
12209-ZVD-G01 |
SEAL, VALVE STEM |
| 2 |
14100-ZVB-000 |
CAMSHAFT ASSY. |
| 3 |
14410-ZE1-010 |
ROD, PUSH |
| 4 |
14431-ZE1-000 |
ARM, VALVE ROCKER |
| 5 |
14441-ZE1-010 |
LIFTER, VALVE |
| 6 |
14451-Z7E-000 |
PIVOT, ROCKER ARM |
| 7 |
14711-ZVD-000 |
VALVE, IN. |
| 8 |
14721-ZVD-000 |
VALVE, EX. |
| 9 |
14751-ZVD-000 |
SPRING, VALVE |
| 10 |
14771-ZVD-000 |
RETAINER, VALVE SPRING |
| 11 |
14775-ZVD-000 |
SEAT, VALVE SPRING |
| 13 |
14791-ZE1-010 |
PLATE, PUSH ROD GUIDE |
| 14 |
90012-ZE0-010 |
BOLT, PIVOT (8MM) |
▶CARBURETOR (32 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
16010-881-A00 |
GASKET SET |
| 2 |
16011-ZV1-F01 |
VALVE SET, FLOAT |
| 3 |
16013-ZV1-F01 |
FLOAT SET |
| 4 |
16015-ZVD-701 |
CHAMBER SET, FLOAT |
| 5 |
16016-ZVB-A01 |
SCREW SET |
| 6 |
16024-ZY3-000 |
SCREW SET, DRAIN |
| 7 |
16028-ZV1-F01 |
SCREW SET |
| 8 |
16081-ZV1-A00 |
SCREW, PAN |
| 9 |
16100-ZVB-A01 |
CARBURETOR ASSY. (BC05K A) |
| 10 |
16166-ZV1-F01 |
NOZZLE, MAIN |
| 11 |
16211-ZVD-000 |
INSULATOR, CARBURETOR |
| 12 |
16221-ZVD-000 |
GASKET, CARBURETOR |
| 13 |
16576-ZVA-000 |
HOLDER, CABLE |
| 14 |
16593-ZVD-000 |
ROD, THROTTLE |
| 15 |
16620-ZVD-000 |
CABLE, CHOKE |
| 16 |
17101-ZVD-000 |
MANIFOLD, IN. |
| 17 |
17151-ZVD-000 |
GASKET, IN. MANIFOLD |
| 18 |
17201-ZVD-000 |
GUIDE, AIR |
| 19 |
17202-ZVD-000 |
COLLAR, DISTANCE |
| 20 |
17203-ZVD-000 |
TRAP, FLAME |
| 21 |
17931-ZVD-000 |
ARM A, THROTTLE |
| 22 |
17932-ZVD-000 |
ARM B, THROTTLE |
| 23 |
90012-ZV1-010 |
BOLT, FLANGE (6X102) |
| 24 |
90013-ZW9-000 |
BOLT, FLANGE (6X12) |
| 25 |
90016-ZVD-000 |
BOLT, FLANGE (6X28) |
| 26 |
90019-ZVD-000 |
BOLT, FLANGE (6X40) |
| 27 |
90117-ZVA-000 |
BOLT, FLANGE (6X12) |
| 28 |
90507-ZVD-000 |
WASHER, PLAIN (6MM) |
| 29 |
94001-06490-0S |
NUT, HEX. (6MM) |
| 30 |
95003-07008-60M |
BULK HOSE, VINYL (4X7X8000) (4X7X180) |
| 31 |
99101-ZH7-0720 |
JET, MAIN (#72) |
| 32 |
99103-881-0350 |
JET (#35) |
▶CHARGE RECEPTACLE KIT (11 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06310-ZVD-020ZA |
RECEPTACLE KIT, CHARGE *BLACK* (BLACK) |
| 2 |
31110-ZVD-601ZA |
FLYWHEEL *BLACK* (CHARGE) (BLACK) |
| 3 |
31575-ZVD-601 |
HARNESS ASSY., BATTERY |
| 4 |
31580-ZVD-601 |
BRACKET, BATTERY CABLE |
| 5 |
31630-ZVD-601 |
COIL ASSY., CHARGE (6A) |
| 6 |
31750-ZVD-601 |
RECTIFIRE ASSY., REGULATOR |
| 7 |
31751-ZVD-600 |
BRACKET, REGULATOR |
| 8 |
90011-ZZ5-M01 |
BOLT, FLANGE (6X14) (CT200) |
| 9 |
90018-ZZ5-M01 |
BOLT, FLANGE (6X20) |
| 10 |
90032-ZZ5-M01 |
BOLT, FLANGE (6X32) |
| 11 |
31650-ZVD-600 |
RECEPTACLE ASSY., CHARGE |
▶CRANKSHAFT/PISTON (8 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
13010-Z4F-004 |
RING SET, PISTON (STD) (TEIKOKU) |
| 2 |
13101-ZVD-000 |
PISTON |
| 3 |
13111-ZVD-000 |
PIN, PISTON |
| 4 |
13200-ZVD-000 |
ROD ASSY., CONNECTING |
| 5 |
13310-ZVD-000 |
CRANKSHAFT |
| 6 |
90001-Z1T-000 |
BOLT, CONNECTING ROD |
| 7 |
90459-ZVD-000 |
WASHER, THRUST (25MM) |
| 8 |
90551-ZE1-000 |
CLIP, PISTON PIN (18MM) |
▶CYLINDER (10 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
12000-ZVD-000ZA |
CYLINDER ASSY. *NH8* (DARK GRAY) |
| 2 |
12367-ZVD-000 |
FILTER, BREATHER |
| 3 |
12371-ZVD-000 |
CAP, BREATHER CHAMBER |
| 4 |
12372-ZVD-000 |
VALVE, BREATHER |
| 5 |
12373-ZVD-000 |
GASKET, BREATHER CAP |
| 6 |
15620-ZVD-000 |
CAP, OIL FILLER |
| 7 |
15625-ZVD-000 |
GASKET, OIL FILLER CAP |
| 8 |
15721-ZVD-000 |
TUBE, BREATHER |
| 9 |
90117-ZVA-000 |
BOLT, FLANGE (6X12) |
| 10 |
91251-Z1V-003 |
OIL SEAL (25X38X7) (ARAI) |
▶CYLINDER HEAD (18 parts)
| Ref |
OEM Part # |
Part Name |
| 3 |
12210-ZVD-000ZA |
CYLINDER HEAD *NH8* (DARK GRAY) |
| 4 |
12216-ZE5-300 |
CLIP, VALVE GUIDE |
| 5 |
12251-ZVD-000 |
GASKET, CYLINDER HEAD |
| 6 |
12311-ZV1-010 |
COVER, HEAD |
| 7 |
12391-ZVD-000 |
GASKET, HEAD COVER |
| 8 |
18110-ZVD-000ZA |
MANIFOLD, EX. *NH8* (DARK GRAY) |
| 9 |
18115-ZVD-010 |
GASKET, EX. MANIFOLD |
| 10 |
19300-881-761 |
THERMOSTAT ASSY. |
| 11 |
19302-921-003 |
RUBBER, THERMOSTAT |
| 12 |
19310-ZVD-000ZA |
COVER, THERMOSTAT *NH8* (DARK GRAY) |
| 13 |
19351-ZVD-000 |
GASKET, THERMOSTAT COVER |
| 14 |
31916-ZVD-003 |
SPARK PLUG (BKR6E-E) |
| 15 |
90013-ZVD-000 |
BOLT, FLANGE (6X12) |
| 16 |
90018-ZVD-000 |
BOLT, FLANGE (8X60) |
| 17 |
90030-ZY3-000 |
BOLT, FLANGE (6X22) |
| 18 |
90031-ZY3-000 |
BOLT, FLANGE (6X32) |
| 19 |
94301-10160 |
PIN, DOWEL (10X16) |
| 20 |
95801-08090-09 |
BOLT, FLANGE (8X90) |
▶ENGINE COVER (6 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
40100-ZVD-000ZA |
CASE, ENGINE (LOWER) *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 2 |
40111-ZVD-300 |
SEAL A, CASE (LOWER) |
| 3 |
40113-ZVD-300 |
SEAL C, CASE (LOWER) |
| 4 |
63100-ZVD-010ZA |
COVER, ENGINE *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 5 |
63102-ZVD-300 |
SEAL, ENGINE COVER |
| 6 |
90104-ZVD-000 |
BOLT-WASHER (6X16) |
▶EXTENSION CASE/GEAR CASE (34 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
24310-ZVD-000 |
ROD B, SHIFT |
| 2 |
24312-ZV1-003 |
JOINT, R. SHIFT ROD |
| 3 |
24313-ZV1-003 |
JOINT, L. SHIFT ROD |
| 4 |
24320-ZVD-700 |
ROD A, SHIFT (L) |
| 5 |
24343-ZVD-000 |
HOLDER, SEAL |
| 6 |
40201-ZVD-701ZA |
CASE, EXTENSION *NHB14M* (L) (AQUA MARINE SILVER METALLIC) |
| 7 |
40202-ZVD-000 |
GROMMET, EXTENSION |
| 8 |
40204-ZVD-000 |
SHAFT, REVERSE LOCK |
| 9 |
40205-ZVD-000 |
GROMMET, LOCK SHAFT |
| 10 |
41100-ZV1-C00ZB |
CASE, GEAR *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 11 |
41106-ZVA-000 |
METAL, ANODE |
| 12 |
50111-ZVD-000ZA |
HOUSING, R. MOUNTING (LOWER) *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 13 |
50121-ZVD-000ZA |
HOUSING, L. MOUNTING (LOWER) *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 14 |
50152-ZVD-000 |
RUBBER A, MOUNTING (LOWER) |
| 15 |
50155-ZVD-000 |
RUBBER B, MOUNTING (LOWER) |
| 16 |
90102-ZVD-000 |
BOLT-WASHER (6X50) |
| 17 |
90105-ZVA-000 |
BOLT, OIL CHECK |
| 18 |
90111-881-000 |
BOLT, HEX. (6X32) |
| 19 |
90114-881-000 |
BOLT, HEX. (6X40) |
| 20 |
90113-ZVA-000 |
BOLT, FLANGE (6X16) |
| 21 |
90301-ZVD-000 |
NUT, REVERSE LOCK |
| 22 |
90304-ZV4-000 |
NUT, HEX. (6MM) |
| 23 |
90506-ZVD-000 |
WASHER, PLAIN (6MM) |
| 24 |
90507-ZVA-000 |
WASHER, NYLON (8MM) |
| 25 |
90751-ZVD-000 |
PIN, DOWEL (8X16) |
| 26 |
91151-VD6-851 |
ROLLER (2.5X11.8) |
| 27 |
91253-ZW9-003 |
SEAL, WATER (6MM) |
| 28 |
15142-PH3-003 |
O-RING (10.8X2.4) (ARAI) |
| 29 |
94001-05490-0S |
NUT, HEX. (5MM) |
| 30 |
94301-08140 |
PIN, DOWEL (8X14) |
| 31 |
94305-25102 |
PIN, SPRING (2.5X10) |
| 32 |
90111-ZVD-000 |
BOLT-WASHER (6X32) |
| 33 |
90114-ZVD-000 |
BOLT-WASHER (6X40) |
| 34 |
90951-ZV7-010 |
NIPPLE, GREASE |
▶FLYWHEEL/IGNITION COIL (9 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
13331-Z8B-900 |
KEY, SPECIAL WOODRUFF (25X18) |
| 2 |
30500-ZVB-003 |
COIL ASSY., IGNITION |
| 3 |
30701-ZVD-003 |
CLIP, IGNITION WIRE |
| 4 |
31110-ZVD-003ZA |
FLYWHEEL *BLACK* (BLACK) |
| 5 |
31510-ZVD-000 |
CLAMP, WIRE |
| 7 |
90001-ZVD-000 |
BOLT, SPECIAL (6MM) |
| 9 |
90058-ZVA-000 |
BOLT, FLANGE (5X10) |
| 10 |
90117-ZVA-000 |
BOLT, FLANGE (6X12) |
| 11 |
90201-881-000 |
NUT, SPECIAL (14MM) |
▶FUEL CONNECTOR KIT (7 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06177-ZVB-A00 |
CONNECTOR KIT, FUEL (US) |
| 2 |
16792-ZVD-A01 |
TUBE B, FUEL |
| 3 |
16950-ZVD-003 |
PETCOCK ASSY. (THREE-WAY) |
| 4 |
17710-ZW9-033 |
CONNECTOR ASSY., FUEL (B) |
| 5 |
87511-ZVD-A00 |
MARK, CHANGE FUEL PETCOCK (E) |
| 6 |
90602-ZVD-000 |
CLIP, TUBE (B1 11) |
| 7 |
95002-02109 |
CLIP, TUBE (B1 10) |
▶FUEL PUMP (5 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
16700-ZVD-003 |
PUMP ASSY., FUEL (MSDS) |
| 2 |
16795-ZVD-A01 |
TUBE E, FUEL |
| 3 |
90002-ZVD-000 |
BOLT, SOCKET (6X22) |
| 4 |
90402-ZVD-000 |
WASHER, PLAIN (6MM) |
| 5 |
90601-ZVD-000 |
CLIP, TUBE (B1 9) |
▶FUEL STRAINER (5 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
16793-ZVD-A01 |
TUBE C, FUEL |
| 2 |
16794-ZVD-A01 |
TUBE D, FUEL |
| 3 |
16910-GAH-690 |
FILTER, FUEL |
| 4 |
90658-SA0-003 |
CLIP, WIRE HARNESS |
| 5 |
95002-02109 |
CLIP, TUBE (B1 10) |
▶FUEL TANK (21 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
16791-ZVD-A01 |
TUBE A, FUEL |
| 3 |
16950-ZVB-003 |
PETCOCK ASSY. (2WAY) |
| 5 |
16952-ZE6-000 |
FILTER, FUEL |
| 6 |
17510-ZVD-305 |
TANK, FUEL (COO) |
| 7 |
17514-ZVD-000 |
RUBBER, TANK MOUNTING |
| 8 |
17515-ZVD-000 |
RUBBER, TANK CAP |
| 9 |
17534-ZVD-000 |
SEAL, FUEL TANK |
| 10 |
17550-ZVD-000 |
INSULATOR, FUEL TANK |
| 11 |
17610-ZVD-A00 |
CAP-TETHER ASSY., FUEL TANK |
| 12 |
17633-ZVD-000 |
TETHER, FUEL CAP |
| 14 |
17713-ZVD-000 |
GROMMET, FUEL CONNECTOR |
| 15 |
17936-ZVA-000 |
WASHER, PLAIN (6MM) |
| 16 |
30419-ZY9-003 |
GROMMET, ELECTRONIC PARTS CASE |
| 17 |
90013-ZV4-010 |
BOLT, FLANGE (6X20) |
| 18 |
90020-ZVD-000 |
BOLT, SPECIAL (6MM) |
| 19 |
90112-ZY1-000 |
BOLT, SPECIAL (6X22) (CT200) |
| 21 |
90757-ZVD-000 |
PIN, LOCK (5MM) |
| 22 |
91501-ZVD-300 |
COLLAR, FUEL TANK INSULATOR |
| 23 |
91553-ZV5-010 |
COLLAR, MODULE IGNITION CONTROL CASE (CDI) |
| 24 |
95002-02109 |
CLIP, TUBE (B1 10) |
| 25 |
95002-02129 |
CLIP, TUBE (B1 12) |
▶GEAR CASE ASSY (1 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
41005-ZVD-000ZA |
CASE ASSY., GEAR *NHB14M* (AQUA MARINE SILVER METALLIC) |
▶HANDLEBAR (22 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
17910-ZVD-003 |
CABLE, THROTTLE |
| 2 |
24626-ZVD-000 |
PLATE, SHIFT SHAFT |
| 3 |
36180-ZVD-003 |
SWITCH ASSY., EMERGENCY STOP |
| 4 |
36182-ZVD-650 |
WIRE, EMERGENCY |
| 5 |
53101-ZVD-305ZA |
HANDLEBAR *NHB14M* (COO) (AQUA MARINE SILVER METALLIC) |
| 6 |
53102-ZVD-000 |
REEL, THROTTLE |
| 7 |
53104-ZVD-000 |
BOLT, FRICTION |
| 8 |
53106-ZVD-000 |
BLOCK, THROTTLE FRICTION |
| 9 |
53108-ZVD-000 |
RUBBER, HANDLE MOUNTING (B) |
| 10 |
53109-ZVD-000 |
RUBBER, HANDLE MOUNTING (A) |
| 11 |
53111-ZVD-000 |
PLATE, HANDLEBAR |
| 12 |
53112-ZVD-000 |
COLLAR, HANDLEBAR |
| 13 |
53141-ZVD-000 |
PIPE, GRIP |
| 14 |
53148-ZVD-000 |
SPRING, GRIP PIPE |
| 15 |
53165-ZVD-305 |
RUBBER, GRIP (COO) |
| 16 |
90119-ZVD-000 |
SCREW, PAN (6X8) |
| 17 |
90303-ZVA-000 |
NUT, HEX. (16MM) |
| 18 |
90543-ZVD-000 |
WASHER, PLAIN (10MM) |
| 19 |
90752-ZVD-000 |
PIN, SPRING (4X28) |
| 20 |
92101-06016-4J |
BOLT, HEX. (6X16) |
| 21 |
94002-06490-0S |
NUT, HEX. (6MM) |
| 22 |
94201-20102 |
PIN, SPLIT 2 |
▶LABEL (8 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
87121-ZVB-000 |
MARK, RR. (4) |
| 4 |
87123-ZVD-A00 |
LABEL, INDICATION (E) |
| 5 |
87132-ZVD-000 |
MARK, SIDE STRIPE (HONDA) |
| 6 |
87511-ZVB-A00 |
MARK, CHANGE FUEL PETCOCK (E) |
| 8 |
87532-ZVD-A00 |
MARK, THROTTLE (ENGLISH) |
| 9 |
87535-ZVD-A01 |
LABEL, STORING OILCAUTION (E) |
| 10 |
87538-ZVD-A00 |
LABEL, WARNING OPERATOR (ENGLISH) |
| 11 |
87546-ZVD-A00 |
MARK, EMERGENCY START (ENGLISH) |
▶OIL PAN (21 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
11300-ZVD-000ZA |
PAN ASSY., OIL *NH8* (DARK GRAY) |
| 2 |
15130-ZVD-000 |
COVER, OIL PUMP |
| 3 |
15131-ZVD-000 |
O-RING, PUMP COVER |
| 4 |
15136-ZVD-000 |
SHAFT, OIL PUMP |
| 5 |
15220-ZVD-000 |
STRAINER, OIL |
| 6 |
15331-KRF-S00 |
ROTOR, OIL PUMP (INNER) |
| 7 |
15332-KRF-S00 |
ROTOR, OIL PUMP (OUTER) |
| 8 |
15335-ZVD-000 |
RUBBER, OIL RETURN |
| 9 |
15473-ZVD-000 |
VALVE, CHECK |
| 10 |
15474-ZVD-000 |
SPRING, CHECK VALVE |
| 11 |
15475-ZVD-000 |
PLATE, CHECK VALVE |
| 12 |
35490-ZW9-003 |
SWITCH ASSY., OIL PRESSURE |
| 13 |
90004-ZVD-000 |
BOLT, DRAIN PLUG (12MM) |
| 14 |
90036-ZVD-000 |
BOLT, FLANGE (8X32) |
| 15 |
90117-ZVA-000 |
BOLT, FLANGE (6X12) |
| 16 |
91201-ZG9-U71 |
OIL SEAL (25X38X7) |
| 17 |
91255-ZV1-003 |
SEAL, COUPLING (25X40X14) |
| 18 |
91309-ML7-003 |
O-RING (9.6X2.6) (ARAI) |
| 19 |
92101-06012-0A |
BOLT, HEX. (6X12) |
| 20 |
94109-12000 |
WASHER, DRAIN PLUG (12MM) |
| 21 |
94301-08140 |
PIN, DOWEL (8X14) |
▶PROPELLER SHAFT/PROPELLER (19 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
24101-ZVD-300 |
SHIFTER, CLUTCH |
| 2 |
24102-ZV1-300 |
PIN, SHIFTER (3X26) |
| 3 |
24122-ZVD-300 |
SLIDER, SHIFT |
| 4 |
24123-ZVD-300 |
SPRING, SHIFT |
| 5 |
41145-ZVD-000 |
GEAR, BEVEL (F) |
| 6 |
41150-ZVD-000 |
GEAR, BEVEL (R) |
| 7 |
41158-ZV1-000 |
SHIM B, GEAR (0.10MM) |
| 8 |
41160-ZVD-000 |
SHAFT, PROPELLER |
| 9 |
41161-ZVD-300 |
SHAFT, PROPELLER |
| 10 |
41201-ZVD-000ZA |
HOLDER, PROPELLER SHAFT *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 11 |
58130-ZVD-U01ZA |
PROPELLER, THREE-BLADE (7-1/4X5-1/2) *NH283* (STIN GRAY) |
| 12 |
58131-ZV1-010 |
PIN, SHEAR |
| 13 |
58141-ZVD-000 |
CAP, PROPELLER |
| 14 |
90113-ZVA-000 |
BOLT, FLANGE (6X16) |
| 15 |
90503-ZV1-000 |
WASHER (13MM) |
| 16 |
91252-ZV1-003 |
SEAL, WATER (13MM) (ARAI) |
| 17 |
91351-ZV1-003 |
O-RING (52MM) |
| 18 |
94201-30252 |
PIN, SPLIT (3.0) |
| 19 |
96100-60040-00 |
BEARING, RADIAL BALL (6004) |
▶RECOIL STARTER (20 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
28400-ZVD-033 |
STARTER ASSY., RECOIL |
| 2 |
28417-ZVD-003 |
SCREW, TAPPING (5X20) |
| 3 |
28421-ZVD-013 |
REEL, RECOIL STARTER |
| 4 |
28422-ZVD-003 |
RATCHET, STARTER |
| 5 |
28432-ZV4-003 |
WASHER |
| 6 |
28433-ZE1-711 |
GUIDE, RATCHET |
| 7 |
28435-ZV4-003 |
STOPPER, REEL |
| 8 |
28436-ZV4-003 |
ARM, STOPPER |
| 9 |
28437-ZVD-003 |
SPRING, STOPPER |
| 10 |
28438-ZV4-003 |
PIN, SPLIT |
| 11 |
28441-ZH8-003 |
SPRING, FRICTION |
| 12 |
28442-ZVD-003 |
SPRING, RECOIL STARTER |
| 13 |
28443-ZH8-003 |
SPRING, RETURN |
| 14 |
28450-ZVD-010 |
SEAL, RECOIL |
| 15 |
28461-ZV4-013 |
GRIP, STARTER |
| 16 |
28462-ZVD-003 |
ROPE, RECOIL STARTER |
| 17 |
28466-ZW9-003 |
CAP, STARTER KNOB |
| 18 |
90019-ZVD-000 |
BOLT, FLANGE (6X40) |
| 19 |
90202-ZVD-000 |
NUT, FLANGE CAP (6MM) |
| 20 |
90403-ZW1-000 |
WASHER, PLAIN (6MM) |
▶SHIFT SHAFT/COVER LOCK LEVER (36 parts)
| Ref |
OEM Part # |
Part Name |
| 2 |
17913-ZVD-000 |
GROMMET, THROTTLE CABLE |
| 3 |
17921-ZVD-000 |
HOLDER, CABLE |
| 4 |
17940-ZVD-013 |
CABLE, NEUTRAL STARTING |
| 5 |
17945-ZVD-000 |
BRACKET, CABLE |
| 6 |
17951-ZVD-000 |
KNOB, CHOKE |
| 7 |
17953-ZVD-000 |
GUIDE, CHOKE KNOB |
| 8 |
24210-ZV1-010 |
SPRING, CLICK |
| 9 |
24610-ZVD-010 |
SHAFT, SHIFT |
| 10 |
24611-ZVD-000 |
COLLAR, SHIFT SHAFT |
| 11 |
24612-ZVD-000 |
ARM, SHIFT |
| 12 |
24621-ZVD-010 |
BUSH, SHAFT |
| 13 |
32101-ZVD-000 |
BRACKET, CONNECTOR A |
| 14 |
32972-ZVD-000 |
GROMMET, WIRE |
| 15 |
37210-ZVD-003 |
LAMP ASSY., INDICATOR |
| 16 |
40102-ZVD-000 |
GROMMET A, CASE (LOWER) |
| 17 |
58131-ZV1-010 |
PIN, SHEAR |
| 18 |
63232-ZVD-000 |
LEVER, FASTENER |
| 19 |
63236-ZVD-000 |
WIRE, FASTENER (3.2) |
| 20 |
88111-ZVA-000 |
HOLDER, PARTS |
| 21 |
90011-ZW9-000 |
BOLT, FLANGE (6X14) (CT200) |
| 22 |
90013-ZV0-010 |
BOLT, FLANGE (6X12) (CT200) |
| 23 |
90112-ZVA-000 |
BOLT, FLANGE (6X12) |
| 24 |
90303-ZVA-000 |
NUT, HEX. (16MM) |
| 25 |
90452-GK4-600 |
WASHER, PLAIN (5MM) |
| 26 |
90501-ZVD-000 |
WASHER, TONGUED |
| 27 |
90508-ZVD-000 |
WASHER, PLAIN (10MM) |
| 28 |
90754-ZVD-000 |
PIN, HEX. (5X15) |
| 29 |
90755-ZVD-000 |
PIN (5X47) |
| 30 |
91305-422-000 |
O-RING (9.8X2.4) |
| 31 |
91452-ZVD-000 |
RING, STOPPER |
| 32 |
92101-05016-4J |
BOLT, HEX. (5X16) |
| 33 |
94201-16102 |
PIN, SPLIT (1.6) |
| 34 |
94201-30252 |
PIN, SPLIT (3.0) |
| 35 |
90402-ZVD-000 |
WASHER, PLAIN (6MM) |
| 36 |
17941-ZVD-003 |
WASHER |
| 37 |
91362-VD6-000 |
O-RING (P7) |
▶STERN BRACKET (17 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
50122-ZVD-300 |
PLATE, PUSH |
| 2 |
50300-ZVD-000ZA |
BRACKET, R. STERN *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 3 |
50310-ZVD-000ZA |
BRACKET, L. STERN *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 4 |
50323-ZVD-300 |
GRIP, CLAMP |
| 5 |
50325-ZVD-300 |
SCREW, CLAMP |
| 6 |
50335-ZVD-000 |
COLLAR, DISTANCE (6MM) |
| 7 |
50340-ZVD-000 |
ROD, ADJUSTING |
| 8 |
50342-ZV1-310 |
STOPPER, ROD |
| 9 |
90103-ZVD-000 |
BOLT, HEX. (6X140) |
| 10 |
90107-ZVD-000 |
BOLT, HEX. (8X130) |
| 11 |
90305-ZV4-000 |
NUT, SELF-LOCK (8MM) |
| 12 |
90503-ZVD-000 |
WASHER, SPRING (6MM) |
| 13 |
90506-ZVD-000 |
WASHER, PLAIN (6MM) |
| 14 |
90514-ZVD-000 |
WASHER, PLAIN (8MM) |
| 15 |
90855-ZW9-300 |
RIVET (4X22.6) |
| 16 |
94001-06490-0S |
NUT, HEX. (6MM) |
| 17 |
94305-20063 |
PIN, SPRING (2X6) |
▶SWIVEL CASE/MOUNT FRAME (30 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
50100-ZV1-842ZC |
FRAME, MOUNTING *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 2 |
50105-ZVD-000ZA |
STOPPER, HANDLEBAR *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 3 |
50106-ZVD-000 |
SPRING, HANDLE |
| 4 |
50107-ZVD-000 |
COLLAR, STOPPER |
| 5 |
50112-ZVD-000 |
WASHER, MOUNT |
| 6 |
50113-ZVD-000 |
CAP, MOUNTING |
| 7 |
50151-ZVD-000 |
RUBBER, MOUNTING (UPPER) |
| 8 |
50201-ZV1-C01ZB |
CASE, SWIVEL *NHB14M* (AQUA MARINE SILVER METALLIC) |
| 9 |
50211-ZVD-000 |
LINER, SWIVEL CASE |
| 10 |
50212-ZVD-000 |
BLOCK, FRICTION |
| 11 |
50214-ZV1-000 |
BUSH, SWIVEL CASE |
| 12 |
50233-ZVD-000 |
SPRING, FRICTION ADJUSTING |
| 13 |
50403-ZVD-000 |
SPRING, HOOK RETURN |
| 14 |
50511-ZVD-000 |
PLATE, REVERSE LOCK |
| 15 |
50512-ZVD-000 |
HOOK, REVERSE LOCK |
| 16 |
50513-ZVD-000 |
SPRING, R. REVERSE LOCK |
| 17 |
50514-ZVD-000 |
SPRING, L. REVERSE LOCK |
| 18 |
50515-ZVD-000 |
ARM, TILT |
| 19 |
50517-ZVD-000 |
SHAFT, TILT |
| 20 |
50519-ZVD-000 |
SPRING, REVERSE LOCK |
| 21 |
50521-ZV1-000 |
BUSH, TILT LEVER |
| 22 |
90105-ZVD-000 |
BOLT, REVERSE LOCK |
| 23 |
90109-ZVD-000 |
BOLT, SPECIAL (8X20) |
| 24 |
90124-ZV4-000 |
BOLT, HEX. (6X20) |
| 25 |
90505-ZVD-000 |
WASHER, THRUST |
| 26 |
90506-ZVD-000 |
WASHER, PLAIN (6MM) |
| 28 |
90651-ZV1-000 |
CIRCLIP (INNER) (40) |
| 29 |
90951-ZV7-010 |
NIPPLE, GREASE |
| 30 |
91256-ZV1-003 |
OIL SEAL (27.8X33X5) (ARAI) |
| 31 |
94001-06490-0S |
NUT, HEX. (6MM) |
▶TOOL/WATER HOSE JOINT (12 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 |
| 6 |
28462-ZW9-003 |
ROPE, RECOIL STARTER (1300MM) |
| 7 |
36187-ZV4-652 |
CLIP, EMERGENCY LOCK |
| 8 |
89213-KWK-900 |
PLIERS |
| 9 |
89216-ZVA-000 |
WRENCH, BOX (P16) |
| 10 |
99001-10120 |
SPANNER (10X12) |
| 11 |
99003-30000 |
DRIVER 3, MINUS SCREW (NO.2) |
| 12 |
99003-50000 |
GRIP, SCREW DRIVER |
| 13 |
99008-01600 |
BAG, TOOL (160MM) |
▶VERTICAL SHAFT (18 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
12515-ZVD-000 |
PLATE, EX. CHAMBER |
| 2 |
12516-ZVD-000 |
GASKET, EX. CHAMBER (UPPER) |
| 3 |
12517-ZVD-000 |
GASKET, EX. CHAMBER (LOWER) |
| 4 |
19210-ZVD-003 |
IMPELLER, PUMP |
| 5 |
19220-ZVD-000 |
HOUSING, IMPELLER |
| 6 |
19231-ZVD-000 |
COVER, IMPELLER |
| 7 |
19232-ZV1-A10 |
GASKET, IMPELLER |
| 8 |
19251-ZVD-700 |
TUBE, WATER (L) |
| 9 |
19252-ZVD-000 |
GROMMET, WATER TUBE |
| 10 |
19253-ZVD-000 |
RING, WATER TUBE SEAL |
| 11 |
41110-ZV1-701 |
SHAFT, VERTICAL (L) |
| 12 |
41121-ZVD-000 |
SHAFT, PINION |
| 13 |
41131-ZVD-000 |
GEAR, PINION |
| 14 |
41136-ZVD-000 |
WASHER B |
| 15 |
90059-ZY3-000 |
BOLT-WASHER (6X29) |
| 16 |
90112-ZVD-000 |
COLLAR B, DISTANCE |
| 17 |
91101-ZV5-003 |
ROLLER (4X10) |
| 18 |
91252-ZV1-003 |
SEAL, WATER (13MM) (ARAI) |
▶WATER PUMP IMPELLER KIT (9 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
06193-ZVD-010 |
PUMP KIT, IMPELLER |
| 2 |
19210-ZVD-003 |
IMPELLER, PUMP |
| 3 |
19220-ZVD-000 |
HOUSING, IMPELLER |
| 4 |
19231-ZVD-000 |
COVER, IMPELLER |
| 5 |
19232-ZV1-A10 |
GASKET, IMPELLER |
| 6 |
19253-ZVD-000 |
RING, WATER TUBE SEAL |
| 7 |
90059-ZY3-000 |
BOLT-WASHER (6X29) |
| 8 |
90112-ZVD-000 |
COLLAR B, DISTANCE |
| 9 |
94301-08140 |
PIN, DOWEL (8X14) |
100-Hour / Annual Service Checklist
Maintaining the BF4 is quick and straightforward — most tasks take only a few minutes. Follow this checklist every 100 hours or once per season to ensure reliable performance.
- Drain and replace engine oil (no external oil filter; simply drain and refill).
- Replace the spark plug and set the correct gap.
- Clean the fuel strainer screen and inspect the fuel valve for leaks.
- Clean or rebuild the carburetor if the engine has been stored with untreated fuel.
- Replace the water pump impeller (water-cooled models) or clean the cooling fins and air intake screen (air-cooled models).
- Drain and refill gear case oil; check for water intrusion.
- Inspect the shear pin, propeller, and cotter pin; carry spares.
- Lubricate the throttle grip, prop shaft, and all pivot points with marine grease.
Pro Tips:
- Always add fuel stabilizer if the BF4 will sit unused for more than two weeks. The tiny carburetor passages clog very quickly when fuel evaporates and leaves varnish behind.
- Store the engine upright and in a dry, ventilated space. Allow residual water to drain from the lower unit after each use to prevent internal corrosion.