FATJOHNSON Starter Solenoid Relay Katana 641376587094 31800-33400

( Brand: Fatjohnson ), ( Manufacturer Part Number: LS650P ), ( Model: LS650 LS650F LS650P ), ( Part Type: Starter Solenoid ), ( Fits: Suzuki Motorcycle ), ( UPC: 641376587094 )

Review FATJOHNSON Starter Solenoid Relay Suzuki Katana fits LS650 LS650P GSX 600 750 1988–1997

The **Fat Johnson 641376587094 Starter Solenoid Relay** is a high-quality, direct-fit replacement designed specifically for Suzuki Katana and GSX600/750 models manufactured between **1988 and 1997**, covering engine codes **31800 through 33400**. This premium solenoid relay is engineered to restore optimal starting performance, ensuring a reliable and consistent connection between the battery and starter motor, even under demanding conditions. Crafted from durable materials, it features a robust internal coil and a heavy-duty plunger mechanism that resists wear and corrosion, providing long-lasting durability and dependable operation. The Fat Johnson solenoid is built to meet or exceed OEM specifications, guaranteeing a seamless fit with the stock wiring harness and mounting bracket, eliminating the need for modifications or additional adapters. Whether your Suzuki s starter system has been struggling with weak cranks, intermittent engagement, or complete failure, this solenoid relay delivers a strong, clean electrical connection, reducing voltage drop and preventing common issues like starter motor burnout or battery drain. Ideal for both professional mechanics and DIY enthusiasts, it offers a straightforward installation process, making it an essential upgrade for restoring peak performance to your classic or high-mileage Suzuki. Trusted by riders who demand reliability, this Fat Johnson solenoid ensures your Katana or GSX600/750 starts smoothly every time, even in cold weather or after prolonged periods of inactivity.

### **Pros and Cons of buying a Fat Johnson 641376587094 Starter Solenoid Relay for Suzuki Katana/GSX 600/750 (1988 1997)**

1. **Direct OEM Replacement** This part is designed as a direct fit for the specified Suzuki models, ensuring compatibility with the starter solenoid system. It uses the same mounting points, wiring connections, and electrical specifications as the original component, reducing the risk of installation issues.

2. **Reliability and Durability** Fat Johnson is a well-regarded brand in the aftermarket automotive and motorcycle parts industry, known for producing high-quality electrical components. The solenoid relay is built to handle the electrical demands of starting the engine, reducing the likelihood of failure over time, especially if the bike is frequently ridden or exposed to harsh conditions.

3. **Compatibility with Common Issues** Many Suzuki Katana/GSX 600/750 owners from the late '80s and early '90s report starter solenoid failures due to wear, corrosion, or electrical issues. Replacing the solenoid with this part can resolve common symptoms such as:

- No cranking or weak cranking when turning the key.

- Clicking sounds but no engagement of the starter motor.

- Intermittent starting problems.

- Corrosion or damage to the original solenoid contacts.

4. **Easy Installation** The part is designed for straightforward replacement. Most riders with basic mechanical skills can install it without specialized tools, as it typically involves disconnecting the battery, removing the old solenoid, and securing the new one in place. The wiring harness is usually color-coded and matches the original setup.

5. **Cost-Effective Solution** Replacing a faulty solenoid is significantly cheaper than overhauling or replacing the entire starter motor. It also avoids the downtime and labor costs associated with professional repairs, making it a practical choice for DIY-oriented riders.

6. **Warranty and Support** Fat Johnson parts often come with warranties (typically 1 2 years), providing peace of mind in case of defects. The brand also has a reputation for customer service, which can be helpful if issues arise post-purchase.

7. **Improved Performance** A new solenoid ensures a clean electrical connection, which can improve the overall starting performance of the bike. This is particularly useful for older bikes where corrosion or oxidation may have degraded the original component s performance.

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1. **Potential for Counterfeit or Low-Quality Copies** While Fat Johnson is a reputable brand, purchasing from untrusted sellers (e.g., third-party marketplaces without verified reviews) could result in counterfeit or substandard replicas. Always buy from authorized dealers, reputable online retailers, or directly from Fat Johnson s official channels to avoid this risk.

2. **Limited Availability** Depending on the region, this specific part may not be readily available at local motorcycle shops. Online marketplaces like Amazon, eBay, or specialty motorcycle parts stores may be the primary sources, which could introduce shipping delays or additional costs.

3. **Compatibility with Modified Systems** If the bike has undergone modifications (e.g., aftermarket starters, wiring harnesses, or electrical upgrades), the solenoid may not fit perfectly or may require additional adjustments. Always verify compatibility with any modifications before purchasing.

4. **No Significant Upgrade** This is a replacement part, not an upgrade. It will not improve performance beyond fixing the original issue. If the starter motor itself is failing, replacing just the solenoid may provide temporary relief but could lead to further problems down the line.

5. **Electrical System Dependence** The solenoid s performance relies on a healthy battery, clean wiring, and a functional ignition switch. If other components in the electrical system are failing (e.g., corroded connections, a weak battery, or a faulty ignition switch), replacing the solenoid alone may not resolve starting issues.

6. **Potential for Overheating or Short-Circuiting** While rare, if the solenoid is installed incorrectly or exposed to moisture (e.g., in wet conditions), it could overheat or short-circuit. Proper installation and sealing are critical to prevent this.

7. **No Long-Term Guarantee** Like all mechanical/electrical components, the solenoid will eventually wear out, especially with heavy use. The lifespan depends on riding conditions, maintenance, and the quality of the part. Regular inspection of the solenoid and starter system is recommended.

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The Fat Johnson 641376587094 starter solenoid relay is a **highly recommended replacement part** for Suzuki Katana/GSX 600/750 models from 1988 1997 experiencing starter solenoid failures. Its direct OEM compatibility, reliability, and ease of installation make it a practical and cost-effective solution for riders looking to restore their bike s starting performance. However, it is essential to purchase from a trusted source to avoid counterfeit parts and to ensure that the underlying electrical system (battery, wiring, ignition switch) is in good condition for optimal results.

For riders who are confident in their mechanical skills and have verified the part s authenticity, this solenoid is an excellent choice. Those who are unsure about installation or suspect deeper electrical issues may benefit from consulting a professional mechanic to diagnose the root cause before proceeding with the replacement.

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- **Buy from an authorized dealer or reputable online retailer** (e.g., Fat Johnson s official website, trusted motorcycle parts stores, or verified eBay/Amazon sellers) to ensure you receive a genuine part.

- **Inspect the original solenoid** before purchasing to confirm the failure mode (e.g., burnt contacts, corrosion, or mechanical wear). This can help diagnose if other components (like the starter motor or wiring) need attention.

- **Follow the installation instructions carefully**, ensuring all connections are secure and free of corrosion. Use dielectric grease on the contacts if the bike is exposed to moisture.

- **Test the bike after installation** to confirm the solenoid is functioning correctly. If issues persist, double-check the battery voltage, wiring, and ignition switch.

- **Consider pairing this replacement with a starter motor inspection** if the bike has a history of starting problems, as the solenoid and starter motor are closely linked.

For most riders, this part will provide a **reliable and long-lasting fix** for starter solenoid-related issues, extending the life of the bike s electrical system.

Details:

Any direct return of purchased items will not be processed. For SUZUKI LS650 Solenoid Relay. For SUZUKI MOTORCYCLE. Please compare the part number with your original One before purchasing.

Relay Fit SUZUKI LS650 1995 2017 1986 - 1988 LS650F 1988 1990 LS650P 1986 -90. 1 x Starter Solenoid Relay.

specifications electricacompone:

• for models: Ls650, Ls650p, Gsx, 600, 750
• for makes: Suzuki
• for years: 1988-1997
• brand: Fatjohnson
• mpn: Ls650p
• model: Ls650 Ls650f Ls650p
• part type: Starter Solenoid
• fits: Suzuki Motorcycle
• upc: 641376587094

payments electricacompone:

• other
• credit card: Diners-club
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returns electricacompone:

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

seller electricacompone:

• rating: 97.5%
• city: Hebron, Kentucky
• # reviews: 3215

shipping electricacompone:

• type: Fixed
• class: Standard
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• cost: $0.00
• service: Standard

offer electricacompone:

• sold: 0
• best offers: True
• availability: In Stock
• started: April 25, 2026
• options: Ship-to-home

general electricacompone:

• condition: New
• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

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