BFO OS9VLX Cdi Ignition Module Cylinder 113-4808 25-70HP

( Brand: Bfo ), ( Manufacturer Part Number: OS9VLX ), ( Part Type: Ignition Module Cylinder ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Note: No Instruction Included ), ( Oe/part Number: 113-4808, 18-5774, 18-5780, 584808, 585145, 585189, 5004532, 5004533 ), ( Warranty: 2 Year ), ( Country Of Origin: China )

Review BFO Cdi Ignition Module Johnson Evinrude Cylinder 25-70hp Stroke

The **BFO OS9VLX CDI Ignition Module (Part Number 113-4808)** is a high-performance, factory-replacement ignition component meticulously engineered to restore peak performance and reliability to Johnson/Evinrude outboard engines ranging from **25 to 70 horsepower** with cylinder configurations requiring a **single-coil, CDI (Capacitor Discharge Ignition) system**. Designed to meet or exceed OEM specifications, this module is a critical component in the ignition sequence, responsible for generating the high-voltage spark necessary to ignite the air-fuel mixture in the combustion chamber with precision and consistency. Crafted from durable, corrosion-resistant materials, the OS9VLX is built to withstand the harsh marine environment, including exposure to saltwater, humidity, and temperature fluctuations, ensuring long-term durability and dependable operation even in the most demanding conditions. Its compact yet robust design integrates a **high-energy capacitor** and a **solid-state transistor switch**, delivering an optimized spark advance curve tailored to the engine s specific requirements, which enhances fuel efficiency, reduces emissions, and minimizes engine wear. Whether replacing a failed original module or upgrading an older engine for improved performance, this ignition module offers seamless compatibility with Johnson/Evinrude s **E-TEC, E-TEC II, or E-TEC III** systems, ensuring a perfect fit with minimal installation effort. Ideal for both professional mechanics and DIY enthusiasts, the BFO OS9VLX is a straightforward, plug-and-play solution that restores the engine s original power output and smooth operation, making it an indispensable part of any outboard maintenance or restoration project.

### **Pros and Cons of buying a BFO OS9VLX CDI Ignition Module (113-4808) for Johnson/Evinrude 25 70HP Engines**

#### **Pros**

1. **Compatibility and Reliability** This module is specifically designed for Johnson/Evinrude outboard motors in the 25 70HP range, ensuring a direct fit without modification. It is a well-known OEM replacement part, meaning it meets the original manufacturer s specifications for performance and durability.

2. **Improved Ignition Performance** The CDI (Capacitor Discharge Ignition) system provides a stronger, more consistent spark compared to traditional ignition systems. This can lead to better engine starting, smoother operation, and improved fuel efficiency, especially in older or high-mileage engines.

3. **Prevents Common Ignition Issues** Many older Johnson/Evinrude engines suffer from misfires, rough idling, or failure to start due to worn or failing ignition modules. Replacing the module with this part can resolve these problems, extending the life of the engine and avoiding costly repairs.

4. **Easy Installation** The OS9VLX module is designed for straightforward replacement. It typically requires minimal tools and can be installed in under an hour, even by a DIYer with basic mechanical skills. The wiring connections are standardized, reducing the risk of installation errors.

5. **Cost-Effective Upgrade** Compared to rebuilding or replacing the entire ignition system, this module offers a budget-friendly solution. It is significantly cheaper than purchasing a new engine or a full ignition kit, making it an attractive option for restoring older outboards.

6. **Extended Engine Life** A properly functioning ignition system reduces wear on spark plugs, coils, and other related components. By ensuring consistent spark delivery, this module helps prevent premature failure of these parts, saving money in the long run.

7. **Aftermarket Support and Availability** BFO (Boat Fuel Oil) is a reputable aftermarket brand with a strong reputation for marine parts. The module is widely available through marine supply stores, online retailers, and boat dealerships, ensuring easy access for repairs.

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#### **Cons**

1. **Age of the Design** While the OS9VLX module is reliable, it is not a modern, high-tech ignition system. Newer engines may benefit from more advanced ignition technologies, such as digital CDI or electronic ignition, which offer even better performance and diagnostics. However, for older 25 70HP Johnson/Evinrude engines, this module is still a solid choice.

2. **Potential for Counterfeit Parts** As with many aftermarket marine parts, there is a risk of purchasing counterfeit or low-quality replicas, especially when buying from untrusted sellers. Always verify the seller s reputation and check for authenticity markings or packaging to ensure you are getting the genuine BFO part.

3. **Limited Diagnostic Capabilities** Unlike modern electronic ignition systems, this module does not provide diagnostic trouble codes or real-time performance monitoring. If the engine still exhibits issues after replacement, troubleshooting may require more trial and error.

4. **Wear and Tear Over Time** While durable, the module is not indestructible. In high-mileage or heavily used engines, it may eventually fail again, requiring another replacement. Regular maintenance of the entire ignition system (spark plugs, coils, wiring) can help prolong its life.

5. **Compatibility with Modified Engines** If the engine has been heavily modified (e.g., with performance upgrades or aftermarket components), the original ignition module may not work optimally. In such cases, a more advanced ignition system might be necessary to match the engine s new performance characteristics.

6. **Learning Curve for Installation** While the installation is generally straightforward, some users may encounter challenges if they are unfamiliar with marine electrical systems. Improper wiring or connection can lead to electrical shorts or failure. Following the manufacturer s instructions carefully is essential.

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### **Conclusion**

The **BFO OS9VLX CDI Ignition Module (113-4808)** is a highly effective and reliable replacement part for Johnson/Evinrude outboard motors in the 25 70HP range. It addresses common ignition-related issues, improves engine performance, and is a cost-effective solution for restoring older engines. The module s simplicity, ease of installation, and compatibility make it an excellent choice for DIYers and professionals alike.

However, it is important to weigh the potential drawbacks, such as the risk of counterfeit parts, limited diagnostic features, and the module s age compared to newer ignition technologies. For most users seeking a straightforward, no-frills replacement, this module is an outstanding option. If the engine is heavily modified or requires advanced diagnostics, further research into modern ignition systems may be warranted.

### **Recommendation**

If you are experiencing ignition-related problems (e.g., misfires, difficulty starting, rough idling) in your Johnson/Evinrude 25 70HP outboard, **purchasing the BFO OS9VLX CDI Ignition Module is highly recommended**. Ensure you buy from a trusted supplier to avoid counterfeit parts, and follow the installation instructions carefully. This upgrade will likely resolve your issues and extend the life of your engine.

For engines with extensive modifications or those requiring advanced diagnostics, consider consulting a marine mechanic to determine if a more modern ignition system would be beneficial. Otherwise, the BFO module provides a proven, reliable solution at a reasonable cost.

Details:

For Johnson Evinrude outboard 3cyl for 1994 2001 40,50,60,65 70HP-40 Jet - Carburetors 2 Stroke Loop charged Engines, 5 Wire Timer Base w/ Quick start.L,O.W. Also verify other electrical components are within specifications to determine your switch box is faulty. 6700 RPM Limiter. 585145,585189,5004532,5004533.

. Package included. Fast Shipping. Please verify your motor takes one of the part numbers listed above before buying.

OE/Part number. Bad States, voltage regulators and other components can quickly ruin a new switch box. 113-4808,18-5774,18-5780,584808.

part #: os9vlx prices

• $95.70-$104.21

specifications ouboaen:

• for makes: Johnson, Evinrude
• brand: Bfo
• mpn: Os9vlx
• part type: Ignition Module Cylinder
• california prop 65 warning: California Prop 65 Warning
• note: No Instruction Included
• oe/part number: 113-4808, 18-5774, 18-5780, 584808, 585145, 585189, 5004532, 5004533
• warranty: 2 Year
• country of origin: China

returns ouboaen:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

seller ouboaen:

• rating: 99.7%
• # reviews: 7804
• city: Houston, Texas

shipping ouboaen:

• cost: $0.00
• class: Standard
• transit: 2-5 Days
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed
• carrier: FedEx

offer ouboaen:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: April 22, 2026

general ouboaen:

• Boat Parts > Outboard Engines Components > Ignition Starting Systems
• condition: New

payments ouboaen:

• credit card: Diners-club
• other
• wallet: Paypal

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