JOHNSON 439424 Carburetor Set 398076 35 40 48 50

( Brand: Johnson ), ( Manufacturer Part Number: 439424 ), ( Part Type: Hp Carburetor )

Review JOHNSON Evinrude 1987 Carburetor Set 35 40 48 50 Hp Cyl fits 1987-88

The **Johnson 439424 398076 Evinrude 1987 1988 Carburetor Set** is a meticulously engineered replacement kit designed specifically for Evinrude outboard motors producing **35, 40, 48, and 50 horsepower** during the **1987 and 1988 model years**. This high-performance carburetor set is crafted to restore optimal fuel delivery, throttle response, and engine efficiency, ensuring your outboard runs with the same precision and power as it did when new. The kit includes a **complete set of carburetor components**, including the **carburetor body, float bowl, jets, needles, gaskets, and seals**, all precision-machined to Johnson s exacting standards to guarantee a perfect fit and seamless operation. Whether you re preparing for a season of fishing, boating, or recreational watercraft use, this carburetor set is the ideal solution for restoring your engine s performance after wear, leaks, or performance degradation over time. Built to withstand the demands of marine environments, the components are constructed from durable materials resistant to corrosion, ensuring longevity and reliability. With this kit, you can trust that your Evinrude outboard will not only perform at its best but also maintain smooth, consistent power delivery, whether cruising at full throttle or operating at idle. Perfect for both DIY enthusiasts and professional mechanics, the **Johnson 439424 398076 Evinrude Carburetor Set** is a must-have for anyone looking to revive the performance of their classic or well-used 1987 1988 Evinrude outboard.

### **Pros and Cons of buying a Johnson 439424/398076 Evinrude (1987-88) Carburetor Set (35-40-48-50 HP)**

1. **Compatibility** This carburetor set is designed specifically for Evinrude outboards from 1987 to 1988, covering a range of horsepower (35-40-48-50 HP). This ensures a proper fit without modification, reducing the risk of installation issues.

2. **Performance Optimization** A well-maintained carburetor improves fuel efficiency, throttle response, and overall engine performance. If the original carburetor is worn or clogged, replacing it can restore the engine to near-new condition.

3. **Cost-Effective Replacement** Buying a complete set (rather than individual carburetors) can be more economical than purchasing parts separately, especially if multiple carburetors need replacement.

4. **Prevents Further Damage** A failing carburetor can lead to poor fuel delivery, which may damage the engine over time. Replacing it proactively can prevent costly repairs down the road.

5. **Ease of Installation** Since these are OEM (Original Equipment Manufacturer) or high-quality aftermarket replacements, they are designed to install similarly to the original, making the job easier for mechanics with experience in Evinrude engines.

6. **Availability of Parts** Evinrude engines from this era still have a decent aftermarket support system, meaning you can find gaskets, seals, and other small parts if needed during installation.

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1. **Age and Wear** These carburetors are from an older engine model (late 1980s), which means they may not be as durable or efficient as modern alternatives. Some components (like diaphragms or jets) may wear out faster than in newer designs.

2. **Limited Modern Support** Unlike newer engines, finding specialized tools, diagnostic guides, or technicians familiar with 1987-88 Evinrude carburetors can be challenging. You may need to rely on older manuals or experienced mechanics.

3. **Potential for Leaks** Older carburetors can develop leaks over time, especially if seals or gaskets are not replaced during installation. This could lead to fuel waste or performance issues if not addressed promptly.

4. **Fuel Quality Concerns** If the boat has been stored for a long time or used with poor-quality fuel, the carburetor may be clogged with sediment or varnish. A thorough cleaning (or replacement of internal components) may be necessary before installation.

5. **Mixed Quality in Aftermarket Parts** While some aftermarket carburetor sets are high-quality, others may be poorly manufactured. Buying from a reputable dealer (e.g., Sea-Doo, Evinrude-authorized parts stores, or trusted online sellers like eBay, Amazon, or specialty marine shops) reduces the risk of receiving a subpar unit.

6. **Learning Curve for DIYers** If you re not experienced with carburetor rebuilds or Evinrude engines, the installation process can be complex. Improper adjustments (e.g., incorrect jet sizes or float settings) can lead to poor performance or even engine damage.

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Buying this **Johnson 439424/398076 Evinrude carburetor set (1987-88, 35-40-48-50 HP)** is a practical choice if you need a direct replacement for an older outboard. The pros such as compatibility, performance benefits, and cost-effectiveness make it a solid option for restoring or maintaining an engine from this era. However, the cons including age-related wear, limited modern support, and potential installation challenges should be carefully considered.

If the carburetor is the primary issue and the rest of the engine is in good condition, replacing it is a worthwhile investment. However, if the engine has other problems (e.g., worn pistons, fuel pump failure, or electrical issues), addressing those first may save money in the long run.

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1. **Verify Condition of the Engine** Before purchasing the carburetor set, inspect the rest of the engine (spark plugs, fuel pump, ignition system, and mechanical components) to ensure no other major repairs are needed.

2. **Buy from a Trusted Source** Purchase the carburetor set from an authorized dealer, a well-reviewed online retailer, or a marine parts specialist to ensure authenticity and quality.

3. **Consider a Rebuild Kit** If the carburetor is severely worn, a **rebuild kit** (including new diaphragms, jets, and seals) may be more cost-effective than a full replacement, especially if you re comfortable rebuilding it yourself.

4. **Professional Installation (If Needed)** If you re not experienced with carburetor work, have a mechanic with Evinrude expertise install it to avoid misadjustments.

5. **Test and Adjust** After installation, perform a **break-in period** and fine-tune the carburetor for optimal performance, checking for leaks, proper idle, and smooth throttle response.

6. **Maintenance Plan** Since these are older carburetors, plan for regular maintenance (cleaning, adjusting, and replacing worn parts) to extend their lifespan.

**Final Verdict:** If the carburetor is the root cause of your engine s issues and you re prepared for potential challenges, this carburetor set is a **good investment**. However, weigh the cost against the age of the engine if the outboard is nearing the end of its useful life, you may consider whether a full engine replacement or upgrade would be more practical.

Details:

The brand is Johnson, and the manufacturer part numbers are 439424 398076. The product is a Johnson Evinrude carburetor set specifically designed for outboard engines from the years 1987 -1988, with horsepower ranging 35 to 50 HP and 2 cylinders.

part #: 439424 prices

• $149.00-$395.00

specifications ouboaen:

• for makes: Evinrude, Johnson
• for years: 1987-88
• brand: Johnson
• mpn: 439424
• part type: Hp Carburetor

offer ouboaen:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• started: March 23, 2026
• sold: 0

seller ouboaen:

• city: New Cumberland, Pennsylvania
• rating: 0.0%
• # reviews: 7

general ouboaen:

• Boat Parts > Outboard Engines Components > Other
• condition: Used

returns ouboaen:

• policy: No Returns

shipping ouboaen:

• service: USPS Ground Advantage
• carrier: USPS
• type: Calculated
• class: Standard
• transit: 4-11 Days
• cost: $57.16

payments ouboaen:

• wallet: Apple-pay
• money order
• credit card: Mastercard
• other

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