OMC 393546 Top Bottom Carburetor

( Brand: Omc ), ( Manufacturer Part Number: 393546 ), ( Part Type: Hp Carburetor ), ( Country Of Manufacture: United States ), ( Motor Engine Type: Johnson Evinrude ), ( Donor Motor: Loose )

Review OMC Johnson Evinrude Top Or Bottom Carburetor Hp Cyl fits 1970–1983

The **OMC 393546 Johnson/Evinrude 1983 Top & Bottom Carburetor for 70 HP Outboard Engines** is a meticulously crafted, high-performance replacement carburetor designed to restore optimal fuel delivery and throttle response in classic Johnson/Evinrude outboards from the early 1980s. This top-and-bottom carburetor assembly is engineered to match the precise specifications of the 70 horsepower models produced during the 1983 model year, ensuring seamless compatibility with engines like the Evinrude 70 HP 4-stroke or Johnson 70 HP 4-stroke variants. Built with durable brass and high-grade aluminum components, the carburetor features a robust top plate with precision-machined passages and a reliable throttle linkage system, allowing for smooth acceleration and consistent power output. The bottom carburetor houses the fuel metering jets, idle circuit, and main passages, all of which are calibrated to deliver the correct air-fuel mixture for efficient combustion. This carburetor set is ideal for restorers, mechanics, and enthusiasts seeking to revive the performance of their vintage outboards, as it eliminates common issues like lean running, rough idling, or poor throttle response. Whether used in a classic fishing boat, a restored speedboat, or a collector s piece, this OMC part ensures that the engine operates with the same reliability and power as it did when new, making it an essential component for maintaining the integrity of these legendary marine engines.

### **Pros and Cons of Buying a 1983 Johnson Evinrude OMC 393546 (70 HP) Top & Bottom Carburetor**

1. **Classic Reliability** Johnson/Evinrude engines from the early 1980s were known for durability, especially when properly maintained. Many still run reliably with regular upkeep.

2. **Vintage Appeal** If you re restoring or running a classic boat, this engine fits the aesthetic and may be sought after by collectors.

3. **Potential for Restoration** With the right parts and labor, a well-maintained 70 HP Evinrude can be restored to near-new condition, increasing its value over time.

4. **Lower Initial Cost** Compared to modern outboards, this engine is significantly cheaper, making it a budget-friendly option for small boats or as a spare.

5. **Compatibility with Older Boats** If you have a vintage boat that requires a 70 HP engine, this could be a direct replacement without needing major modifications.

6. **Parts Availability** While not as widely stocked as newer models, Johnson/Evinrude parts (especially for carbureted models) are still available through specialty marine suppliers and online marketplaces.

7. **Simpler Mechanics** Carbureted engines are generally easier to tune and repair than modern fuel-injected models, which may appeal to DIY mechanics.

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1. **Age-Related Wear** At nearly 40 years old, the engine likely has significant wear on critical components like the crankshaft, pistons, and bearings. A full teardown and inspection may be necessary before purchase.

2. **Fuel Efficiency & Emissions** Carbureted engines are less fuel-efficient than modern counterparts and may not meet current emissions standards if used on some bodies of water.

3. **Limited Warranty & Support** Original warranties are long expired, and finding authorized service centers for such an old model can be difficult.

4. **Potential for Hidden Damage** Rust, cracked casings, or internal corrosion are common in older engines. A thorough inspection (or test run) is essential to avoid costly repairs.

5. **Fuel & Performance Limitations** The carburetor setup may not perform well with modern fuel blends (e.g., ethanol-heavy gas), leading to tuning issues or reduced power.

6. **Resale Value** Unlike newer engines, this model will not hold value well over time, especially if it requires frequent repairs.

7. **Environmental Concerns** Some marinas or lakes have restrictions on older, less efficient engines due to pollution concerns.

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### **Conclusion & Recommendation**

Buying a **1983 Johnson Evinrude 70 HP carbureted engine (OMC 393546)** can be a good deal if you re looking for a **budget-friendly, vintage powerplant** for a small boat, a restoration project, or as a spare. However, it comes with **significant risks** primarily the unknown state of internal wear, fuel compatibility issues, and the potential for expensive repairs.

- **If you re an experienced mechanic** and can **thoroughly inspect or test-run the engine**, it may be worth purchasing for a **low-cost, high-reward project**.

- **If you re not mechanically inclined**, consider **buying from a seller who offers a warranty or return policy** and getting a **pre-purchase inspection** by a marine mechanic.

- **If your primary goal is reliability and efficiency**, a **modern used or new 70 HP outboard** (e.g., Yamaha, Mercury, or Evinrude s newer models) would be a safer long-term investment.

- **If you re restoring a classic boat**, this engine could be a **fun challenge**, but budget for **major overhauls** (crankshaft, bearings, seals, etc.).

**Final Verdict:** Only proceed if you re prepared for **potential extensive repairs** and don t mind the **limitations of an older design**. For most casual boaters, a newer or well-maintained used engine would be the smarter choice.

Details:

Altman, IL. Carburetor: 393546 / 0393546. Part Numbers. This item is guaranteed to be listed and described accurately.

South central Outboards. Please review photos and verify fitment before purchasing. Clean take-off sold as-is, rebuild required before use, Gaskets not included new gaskets for rebuild, Bowls opened and inspected during cleaning.

No other warranty applies sold as-is, rebuild required before use. Years: 1983, model's: Johnson and Evinrude 70 HP 3-cylinder, System: Carburetors 2-stroke. 393546 Johnson Evinrude 1983 Top or Bottom Carburetor 70 HP 3 Cyl Details /. Please verify by model or serial number before purchasing.

Rebuild able top or bottom position carburetor from a Johnson Evinrude 70 HP 3-cylinder outboard.

part #: 393546 prices

• $23.53-$524.99

specifications ouboaen:

• for makes: Johnson, Evinrude, Omc
• for years: 1970-1983
• brand: Omc
• mpn: 393546
• part type: Hp Carburetor
• country of manufacture: United States
• motor engine type: Johnson Evinrude
• donor motor: Loose

payments ouboaen:

• wallet: Google-pay
• other
• credit card: Discover

returns ouboaen:

• policy: No Returns

general ouboaen:

• Boat Parts > Outboard Engines Components > Other
• condition: For parts or not working

shipping ouboaen:

• cost: $0.00
• transit: 4-7 Days
• service: Standard
• class: Standard
• type: Fixed

seller ouboaen:

• city: Altamont, Illinois
• rating: 99.9%
• # reviews: 34911

offer ouboaen:

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

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