Honda BF2 series User Manual

NEVER START BF2A MOTORS OUT OF WATER!
This results in immediate water pump failure which causes the
motor to overheat. The motor will continue to operate but
damage to the motor occurs.
A malfunctioning water pump will also cause overheating and
present a
potential burn hazard to operators and passengers of the boat.
1. Open boxes and examine merchandise to make sure all equipment matches
what is listed on the packing slip and was not damaged during shipment.
2. Immediately fill Honda BF2 Bumper Boat motors with oil—Honda
recommends using 10w-30 Detergent Motor Oil.
3. Read the Honda BF2 Owner’s Manual and Shop Manual form thoroughly.
WARNING
1. Add oil.(10w-30 is recommended.)
2. DO NOT start BF2A motors out of water. (Damage and burn hazard can
result.)
3. Read owner’s manual and shop manual thoroughly.
4. Open fuel cap vent knob 2 to 3 turns counter clockwise.
5. Turn the fuel valve lever on.
6. Pull starter rope straight out. (Damage will occur to starter or gas tank if
pulled in any other direction.)
7. Use clean unleaded gasoline. (Never use oil/gas mixture.)
8. Check lower gear case oil. (Marine SAE 90 Hypoid oil.)
9. Motor is now ready for installation in boat.
BREAK IN PROCEDURES
1. Read owner’s manual, regarding break in procedure.
2. Start all motors (see starting procedures on page 4).
3. After first 20 hours of operation:
Section 2, page 1
X:\Customer info request\Manuals & Parts Book Bumper Boat\Bumper Boat Manual\Break-In.pub

Honda BF2 series Specifications

General

Fuel	Unleaded Gasoline (86 octane or higher)
Tiller Handle	Yes
Displacement	57 cc
Full Throttle RPM Range	5000 - 6000 rpm
Fuel Tank Capacity	1.0 L
Starting System	Manual
Recommended Oil	10W-30
Gear Shift	Forward, Neutral

Summary

Initial Setup and Critical Safety Warnings

Never Start Motors Out of Water

Warns against starting out of water to prevent immediate water pump failure and overheating.

Initial Inspection and Preparation Steps

Covers unpacking, checking contents, filling oil, and reading manuals before operation.

General Operating Warnings and Checks

Details essential checks like adding oil, fuel, and ensuring proper operation.

Break-In Procedures and Performance Tuning

Break-In Procedure Steps

Outlines the initial break-in process, including reading manuals and starting the motor.

Post Break-In Maintenance

Covers checks and maintenance after the initial break-in period, like oil changes and linkage lubrication.

Idle Speed Adjustment

Crucial procedure to ensure satisfactory engine performance by adjusting idle speed.

Troubleshooting and Starting Procedures

Troubleshooting Common Issues

Addresses problems like difficulty starting, poor running, non-spinning props, and overheating.

Cold Starting Procedures

Step-by-step guide for starting the motor when cold, including choke and throttle usage.

Mechanic Starting Diagnosis

Specific advice for mechanics on diagnosing starting problems, such as water contamination in fuel.

Maintenance and Safety Reminders

Gas Cap Vent Warning

Reminder to open gas cap vents daily to prevent pressure buildup, overflow, fire hazards, and toxic fumes.

Shear Pin Replacement

Instructions for replacing the shear pin, which protects the propeller and drive mechanism.