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Honda BF2 Parts & Diagrams

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🔎 Honda BF2 Resource Center — Browse exploded parts diagrams (21 diagrams), specifications, and maintenance tips below. Scroll down to shop replacement parts for your Honda BF2.

The Honda BF2 is a 2-horsepower, single-cylinder, air-cooled 4-stroke outboard — the smallest engine in Honda Marine's lineup. Weighing just over 12 kg (26 lbs), the BF2 is designed for dinghies, inflatable tenders, canoes, and other small craft where portability and simplicity are paramount. Its centrifugal-clutch design and integrated fuel tank make it one of the easiest outboards to operate, and the 4-stroke architecture eliminates the need to mix oil with gasoline.

Despite its small size, the BF2 still benefits from proper maintenance and access to quality parts. WoMarine.com carries OEM replacement parts and aftermarket marine parts for this micro outboard, presented with exploded parts diagrams so you can identify the exact shear pin, impeller, or gasket you need. Whether you are a weekend kayak angler or a yacht tender operator performing a quick DIY boat engine repair, our catalog makes it simple to keep this little Honda purring reliably.

Quick Reference Specifications

Engine Type 4-Stroke OHV, Single Cylinder, Air-Cooled, Carbureted
Displacement 57 cc (3.5 cu in)
Bore x Stroke 42 mm x 41 mm
Spark Plug (Type & Gap) NGK CR4HSB / Gap: 0.6–0.7 mm
Engine Oil Capacity Approx. 0.12 L
Recommended Engine Oil SAE 10W-30 (API SG or higher)
Gear Case Oil Capacity Approx. 50 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 BF2 is as simple as outboard engines get, but even small motors need attention. Here are the most frequently encountered issues:

  • Hard Starting / No Start: After storage, stale fuel and a varnished carburetor are the usual suspects. A carburetor cleaning kit or rebuild kit, fresh fuel, and a new spark plug typically restore immediate starts.
  • Overheating (Air-Cooled Models): The BF2's air-cooling fins must be free of debris. On water-cooled variants (BF2.3), the tiny impeller must be inspected annually and replaced if any vanes are cracked or missing.
  • Shear Pin Breakage: The BF2 uses a shear pin to protect the drivetrain. Carry spares and a cotter pin on every trip — they are inexpensive and easy to replace on the water.
  • Fuel Leaks: The integrated fuel tank cap gasket and fuel valve O-ring can dry out over time. Replace these small seals to prevent drips and fuel 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 BF2.

AIR GUIDE (11 parts) AIR GUIDE
Ref OEM Part # Part Name
1 15721-ZVA-000 TUBE, BREATHER
2 16202-ZVA-000 GASKET, AIR GUIDE
3 17201-ZVA-000 GUIDE, AIR INLET
4 17202-ZVA-300 COLLAR, DISTANCE
5 17204-ZVA-300 COLLAR, DISTANCE (14MM)
6 17371-ZVA-000 CASE, MUFFLER
7 17374-ZVA-000 GROMMET, MUFFLER
8 17375-ZVA-000 SEAL, MUFFLER
9 90002-ZVA-000 BOLT, FLANGE (5X62)
10 90005-ZVA-000 BOLT, FLANGE (5X70)
11 90049-ZVA-000 BOLT, FLANGE (5X12)
CAMSHAFT (18 parts) CAMSHAFT
Ref OEM Part # Part Name
1 12209-ZM7-003 SEAL, VALVE STEM
2 14111-ZVA-000 CAMSHAFT
3 14126-Z0G-003 ROLLER (5X29.8)
4 14410-ZVA-000 ROD, PUSH
5 14431-ZVA-000 ARM, VALVE ROCKER
6 14435-ZM7-003 ROLLER (4X37.8)
7 14451-ZM7-000 PIVOT, ROCKER ARM
8 14711-ZW6-000 VALVE, IN.
9 14721-ZW6-000 VALVE, EX.
10 14731-ZM7-013 LIFTER, VALVE
11 14751-ZM7-000 SPRING, VALVE
12 14754-ZVA-000 COLLAR, LIFTER
13 14771-ZDF-000 RETAINER, VALVE SPRING
14 15361-ZN4-000 SLINGER, OIL
15 90206-ZVA-000 NUT, TAPPET ADJUSTING
16 90401-ZVA-000 WASHER (6MM)
17 91151-VB5-800 ROLLER (6X25)
18 93404-05016-08 BOLT-WASHER (5X16)
CARBURETOR (26 parts) CARBURETOR
Ref OEM Part # Part Name
1 16010-ZW6-611 GASKET SET
2 16011-ZE0-005 VALVE SET, FLOAT (SEAT NOT INCLUDED)
3 16013-ZDJ-801 FLOAT SET (CARBURETOR NO.)
4 16015-ZW6-G02 CHAMBER SET, FLOAT (CARBURETOR NO.)
5 16016-ZW6-E11 SCREW SET (CARBURETOR NO.)
6 16024-ZW6-013 SCREW SET, DRAIN (CARBURETOR NO.)
7 16028-ZW6-003 SCREW SET
8 16028-ZW6-611 SCREW SET
9 16044-ZV0-A01 LEVER SET, CHOKE
10 16081-ZV1-A00 SCREW, PAN
12 16100-ZVA-E03 CARBURETOR ASSY. (BF33V C)
13 16166-ZW6-G01 NOZZLE, MAIN
14 16196-ZVA-000 TUBE A, AIR VENT
15 16197-ZVA-000 TUBE B, AIR VENT
16 16211-ZVA-000 INSULATOR, CARBURETOR
17 16212-ZVA-000 GASKET, INSULATOR
18 16221-ZVA-000 GASKET, CARBURETOR
19 16225-ZVA-000 PLATE, CARBURETOR JOINT
20 16674-ZVA-000 ROD, CHOKE
21 16953-ZW6-003 LEVER, PETCOCK
23 16956-ZE1-811 SPRING, PETCOCK LEVER
24 16957-ZE1-812 GASKET, PETCOCK
25 16958-ZVA-000 JOINT, AIR VENT TUBE
26 90012-ZVA-000 SCREW, FLAT (5X20)
27 99101-ZG0-0650 JET, MAIN (#65) (CARBURETOR NO.)
28 99204-ZE2-0350 JET SET, PILOT (#35) (CARBURETOR NO.)
CLUTCH (9 parts) CLUTCH
Ref OEM Part # Part Name
1 22000-ZVA-003 CLUTCH ASSY.
2 22100-ZVA-000 CLUTCH OUTER ASSY.
3 22214-ZVA-000 STAY, CLUTCH
4 22252-ZVA-003 SPRING, CLUTCH SHOE
5 22253-ZVA-000 BOLT, CLUTCH (8MM)
6 22254-ZVA-000 WASHER, PLAIN (8MM)
7 22255-ZVA-000 BOLT, CLUTCH STAY (8MM)
8 22260-ZVA-000 HOUSING ASSY., CLUTCH
9 91251-ZW6-013 SEAL, WATER (11X21X8)
CRANKCASE SIDE COVER (7 parts) CRANKCASE SIDE COVER
Ref OEM Part # Part Name
1 11340-ZVA-000 COVER, CRANKCASE SIDE
2 16512-ZVA-000 HOLDER, GOVERNOR WEIGHT
3 90174-ZW4-000 BOLT, FLANGE (5X23) (CT200)
4 90441-ZVA-000 WASHER (4.2X13)
5 90603-ZVA-000 CLIP, GOVERNOR HOLDER
6 91202-HC5-005 OIL SEAL (17X27X5) (KOYO)
7 94301-06100 PIN, DOWEL (6X10)
CRANKSHAFT (2 parts) CRANKSHAFT
Ref OEM Part # Part Name
1 13310-ZVA-010 CRANKSHAFT
2 13331-ZVA-000 KEY, SPECIAL
CYLINDER (21 parts) CYLINDER
Ref OEM Part # Part Name
1 12100-ZW6-T00 CYLINDER
2 12311-ZVA-010 COVER, HEAD
3 12367-ZE6-020 FILTER, BREATHER
4 15171-ZN4-000 PIPE, BREATHER
5 15571-ZM7-003 VALVE, OIL OUTLET
6 15572-ZM7-000 PLATE, STOPPER
7 15600-ZG4-003 CAP ASSY., OIL FILLER
8 15622-ZVA-000 EXTENSION, OIL LEVEL FINDER
9 15625-Z1T-000 GASKET, OIL FILLER CAP
10 15661-ZV0-003 FINDER, OIL LEVEL
11 19631-ZVA-000 SHROUD
12 31914-Z8Y-003 SPARK PLUG (LR4C-E) (NGK)
13 90003-ZVA-000 BOLT, FLANGE (5X16)
14 90008-ZM7-000 BOLT (4X10)
15 90009-ZVA-000 BOLT, FLANGE (5X12) (SUS)
16 90006-ZVA-000 BOLT, OIL DRAIN
17 90019-ZV1-010 BOLT, FLANGE (5X10)
18 91301-ZE9-003 O-RING (22.1X2.2)
19 91325-P4V-003 O-RING (6.9X1.5)
20 93500-03005-0A SCREW, PAN (3X5)
21 96220-60150 ROLLER (6X15)
ENGINE COVER (16 parts) ENGINE COVER
Ref OEM Part # Part Name
1 17514-ZVA-000 RUBBER, TANK MOUNTING (C)
2 17936-ZVA-000 WASHER, PLAIN (6MM)
3 17951-ZVA-000 KNOB, CHOKE
4 35180-ZW6-023 SWITCH ASSY., EMERGENCY STOP
5 36182-ZV4-651 WIRE, EMERGENCY
6 40100-ZVA-000 CASE, ENGINE (LOWER)
7 58131-ZV0-000 PIN, SHEAR
8 63100-ZVA-010ZA COVER, ENGINE *NHB14M* (AQUA MARINE SILVER METALLIC)
9 63103-ZVA-010 BELT, ENGINE COVER
10 88111-ZVA-000 HOLDER, PARTS
11 90019-ZW4-000 BOLT, FLANGE (5X10) (CT200)
12 90103-ZVA-000 BOLT, FLANGE (6X60)
13 90303-ZVA-000 NUT, HEX. (16MM)
14 91551-ZVA-000 COLLAR (6X4)
15 91552-ZVA-000 COLLAR, ENGINE CASE (LOWER)
16 94201-30402 PIN, SPLIT (3.0)
EXHAUST PIPE (3 parts) EXHAUST PIPE
Ref OEM Part # Part Name
1 18330-ZVA-000 PIPE, EX.
2 18515-ZVA-000 GUIDE, AIR EX.
3 90007-ZVA-000 BOLT, FLANGE (5X16) (SUS)
EXTENSION CASE (24 parts) EXTENSION CASE
Ref OEM Part # Part Name
1 19250-ZVA-610 TUBE, WATER
2 40201-ZW6-C00ZA CASE, EXTENSION *NH246* (LOOSY GRAY)
3 40202-ZW6-C00ZA SEPARATOR, EXTENSION *NH246* (LOOSY GRAY)
4 40210-ZVA-610 BUSH, VERTICAL SHAFT (L)
5 40218-ZVA-000 PROTECTOR, EXTENSION
7 50201-ZW6-C00ZA CASE, SWIVEL *NH246* (LOOSY GRAY)
8 50203-ZVA-000ZA CAP, SWIVEL CASE *NH246* (LOOSY GRAY)
9 50204-ZVA-000 COLLAR, SWIVEL CASE
10 50211-ZVA-000 LINER, SWIVEL CASE
11 50212-ZVA-000 BLOCK, FRICTION
12 50233-ZVA-000 SPRING, FRICTION ADJUSTING
13 50337-ZVA-000 COLLAR, DISTANCE
14 50511-ZVA-000 ARM, TILT LOCK
15 50516-ZVA-000 SPRING, TILT LOCK
16 90104-ZVA-000 BOLT-WASHER, SOCKET (6X30)
17 90106-ZVA-000 BOLT, SWIVEL CASE
18 90109-ZVA-000 BOLT-WASHER (6X35)
20 90114-ZVA-000 BOLT, FLANGE (8X35)
21 90518-ZVA-000 WASHER, PLAIN (8MM)
22 90752-ZVA-000 PIN, SPRING (2.5X20)
23 90951-ZV7-010 NIPPLE, GREASE
24 92101-05016-4J BOLT, HEX. (5X16)
25 94301-08100 PIN, DOWEL (8X10)
26 94301-08140 PIN, DOWEL (8X14)
FAN COVER (7 parts) FAN COVER
Ref OEM Part # Part Name
1 16576-ZVA-000 HOLDER, CABLE
2 19610-ZVA-010 COVER, FAN
3 19618-ZVA-000 GROMMET, FAN COVER
4 19619-ZVA-300 COLLAR, FAN COVER
5 90042-ZM7-000 BOLT A, STUD
6 90043-ZM7-000 BOLT B, STUD
7 90058-ZVA-000 BOLT, FLANGE (5X10)
FLYWHEEL (6 parts) FLYWHEEL
Ref OEM Part # Part Name
1 28451-ZVA-003 PULLEY, STARTER
2 30500-ZVA-013 COIL ASSY., IGNITION
3 31110-ZVA-003 FLYWHEEL
4 32195-ZVA-003 WIRE, STOP SWITCH
5 90004-ZW4-000 BOLT, FLANGE (5X20) (CT200)
6 90203-ZVA-000 NUT, FLANGE (10MM)
FUEL TANK (10 parts) FUEL TANK
Ref OEM Part # Part Name
1 16952-ZE6-000 FILTER, FUEL
2 17511-ZW6-E10 TANK, FUEL
3 17515-ZVA-E10 RUBBER, TANK CAP
4 17531-ZVA-000 GROMMET, FUEL TANK
5 17620-ZW6-E12 CAP ASSY., FUEL TANK
6 17701-ZVA-E01 TUBE, FUEL
7 90403-ZVA-000 WASHER, PLAIN (6MM)
8 90601-ZY3-030 CLAMP, TUBE (D10.5)
9 90607-ZY6-000 CLAMP, TUBE (8.0)
10 94021-06020 NUT, CAP (6MM)
GEAR CASE/PROPELLER (23 parts) GEAR CASE/PROPELLER
Ref OEM Part # Part Name
1 40205-ZVA-000ZA PLATE, CAVITATION *NH246* (LOOSY GRAY)
3 41005-ZVA-610ZA CASE ASSY., GEAR *NH246* (L) (LOOSY GRAY)
4 41100-ZVA-000ZA CASE, GEAR *NH246* (LOOSY GRAY)
5 41106-ZVA-000 METAL, ANODE
6 41112-ZW6-C10 SHAFT, VERTICAL (L)
7 41131-ZVA-000 GEAR, PINION
8 41135-ZVA-000 WASHER, PINION THRUST
9 41160-ZVA-000 SHAFT, PROPELLER
10 41200-ZW6-C10ZA HOLDER ASSY., PROPELLER SHAFT *NH246* (LOOSY GRAY)
11 41281-ZVA-000 GASKET, PROPELLER SHAFT HOLDER
12 58130-ZV0-841ZB PROPELLER, THREE-BLADE *NH283* (STIN GRAY)
13 58131-ZV0-000 PIN, SHEAR
14 90105-ZVA-000 BOLT, OIL CHECK
15 90109-ZVA-000 BOLT-WASHER (6X35)
16 90201-HW1-671 BOLT, FLANGE (6X12)
17 90113-ZVA-000 BOLT, FLANGE (6X16)
18 90507-ZVA-000 WASHER, NYLON (8MM)
19 90531-ZVA-000 WASHER, GEAR
20 91251-ZV0-003 SEAL, WATER (11X21X8)
21 91253-ZV0-003 SEAL, WATER (11X21X8)
22 94201-30402 PIN, SPLIT (3.0)
23 94301-08140 PIN, DOWEL (8X14)
24 94540-06018 E-RING (6MM)
HANDLEBAR (25 parts) HANDLEBAR
Ref OEM Part # Part Name
1 16576-ZVA-000 HOLDER, CABLE
2 17910-ZVA-003 CABLE A, THROTTLE
3 17920-ZVA-000 CABLE B, THROTTLE
4 17921-ZVA-000 HOLDER, CABLE
5 17930-ZVA-000 ARM, THROTTLE
6 17932-ZVA-000 SPRING, THROTTLE ARM
7 53101-ZW6-C00ZA HANDLEBAR *NH246* (LOOSY GRAY)
8 53104-ZVA-000 BOLT, FRICTION
9 53106-ZVA-000 BLOCK, THROTTLE FRICTION
10 53107-ZVA-000 COLLAR, HANDLE MOUNTING
11 53108-ZVA-010 RUBBER, HANDLE MOUNTING
12 53140-ZVA-000 GRIP, THROTTLE
13 53167-ZVA-000 HOUSING, THROTTLE (LOWER)
14 53168-ZVA-000 HOUSING, THROTTLE (UPPER)
15 90101-ZVA-000 BOLT, HEX. (6X24)
16 90102-ZVA-000 BOLT, SPECIAL (8X42)
17 90117-ZVA-000 BOLT, FLANGE (6X12)
18 90302-ZVA-000 NUT, HEX. (6MM)
19 90501-ZVA-000 WASHER, PLAIN (8MM)
20 90509-ZVA-000 WASHER (32MM)
21 90511-ZVA-000 WASHER, PLAIN (6MM)
22 91553-ZVA-010 COLLAR (6.2X8.5X5)
23 90108-ZVA-010 SCREW-WASHER (5X22)
24 94001-05490-0S NUT, HEX. (5MM)
25 94001-06490-0S NUT, HEX. (6MM)
LABEL (8 parts) LABEL
Ref OEM Part # Part Name
1 87121-ZW6-G81 MARK, RR. (2.3)
2 87124-ZVA-000 MARK, EMERGENCY SWITCH INDICATION
3 87132-ZVA-000 MARK, SIDE STRIPE (HONDA)
5 87521-ZVA-000 MARK, FUEL PETCOCK
6 87533-ZVA-A00 MARK, THROTTLE (ENGLISH)
8 87537-ZVA-000 LABEL, RECOIL CAUTION
9 87538-ZW6-E40 LABEL, OPERATOR CAUTION
10 87539-ZW6-740 MARK, EX. CAUTION (E)
OIL CASE (6 parts) OIL CASE
Ref OEM Part # Part Name
1 11300-ZVA-405 CASE ASSY., OIL
2 11316-ZVA-000 PLATE, TUBE SETTING
3 15723-ZVA-000 TUBE, CLUTCH HOUSING BREATHER
4 90019-ZV1-010 BOLT, FLANGE (5X10)
5 90174-ZW4-000 BOLT, FLANGE (5X23) (CT200)
6 91202-HC5-005 OIL SEAL (17X27X5) (KOYO)
PISTON/CONNECTING ROD (6 parts) PISTON/CONNECTING ROD
Ref OEM Part # Part Name
1 13010-ZW6-000 RING SET, PISTON (STD)
2 13101-ZDH-000 PISTON (STD)
3 13111-ZVA-000 PIN, PISTON
4 13115-ZVA-000 CLIP, PISTON PIN (10MM)
5 13200-ZN4-010 ROD ASSY., CONNECTING
6 90001-ZM7-000 BOLT, CONNECTING ROD
RECOIL STARTER (5 parts) RECOIL STARTER
Ref OEM Part # Part Name
1 28400-ZVA-013 STARTER ASSY., RECOIL
2 28461-ZVA-003 KNOB, STARTER
3 28462-ZW6-003 ROPE, RECOIL STARTER
4 90202-ZVA-000 NUT, FLANGE CAP (5MM)
5 28475-ZVA-003 GUIDE, ROPE
STERN BRACKET (11 parts) STERN BRACKET
Ref OEM Part # Part Name
1 50300-ZVA-000ZA BRACKET, STERN *NH246* (LOOSY GRAY)
2 50302-ZVA-000 RECEIVER, THRUST
3 50303-ZVA-000 RUBBER, THRUST
4 90107-ZVA-010 BOLT, HEX. (8X114)
5 90108-ZV0-000 BOLT, DIAMOND (6X110)
6 90301-ZVA-000 WINGNUT
7 90501-ZVA-000 WASHER, PLAIN (8MM)
8 90512-ZVA-000 WASHER, PLAIN (6MM)
9 90751-ZW6-000 PIN, SPRING (2.5X8)
10 94001-08490-0S NUT, HEX. (8MM)
11 91452-ZVD-000 RING, STOPPER
TOOL (7 parts) TOOL
Ref OEM Part # Part Name
1 28462-ZVA-A00 ROPE, STARTER
2 36187-ZV4-652 CLIP, EMERGENCY LOCK
4 89203-ZVA-000 SPANNER (8X10)
5 89213-KWK-900 PLIERS
6 89216-ZVA-000 WRENCH, BOX (P16)
7 99008-01600 BAG, TOOL (160MM)
8 89217-ZVA-000 WRENCH, BOX (10MM)

100-Hour / Annual Service Checklist

Maintaining the BF2 takes only a few minutes, but those minutes make the difference between a reliable starting engine and one that leaves you paddling. Follow this checklist every 100 hours or once per season.

  1. Drain and replace engine oil (the BF2 has no oil filter; simply drain and refill).
  2. Replace the spark plug and set the correct gap.
  3. Clean the fuel strainer and inspect the fuel valve for leaks.
  4. Clean or rebuild the carburetor if the engine has been stored with untreated fuel.
  5. Inspect the cooling-air intake screen (air-cooled) or replace the water pump impeller (water-cooled BF2.3).
  6. Drain and refill gear case oil; check for water intrusion.
  7. Inspect the shear pin and propeller for damage; carry spares.
  8. Lubricate the throttle grip, centrifugal clutch linkage, and prop shaft.

Pro Tips:

  • Always use fuel stabilizer if the engine will sit unused for more than two weeks. The BF2's tiny carburetor passages clog quickly when fuel evaporates and leaves varnish behind.
  • Store the engine upright in a well-ventilated area to allow residual water to drain from the lower unit and prevent corrosion in the cylinder.
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