Carburetor Assembly – Fits Tohatsu/Nissan 2-Stroke 5 HP Outboard Motors
This aftermarket carburetor assembly is engineered to fit Tohatsu and Nissan 2-stroke 5 HP outboard engines, specifically designed for seamless compatibility with M5B and NS5B models manufactured in the early 2000s. It serves as a reliable, direct-fit replacement for several original part numbers, ensuring your engine runs smoothly.
This unit is a direct replacement for Tohatsu part numbers 369-03200-2, 369032002M, 393-03200-2, 393032002M, and Nissan part number 369-03200-2.
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Installation Type: Direct bolt-on replacement for a hassle-free setup.
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Fuel Compatibility: Designed for standard gasoline fuel systems.
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Included Jet: Comes equipped with a pre-installed main jet #78.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Tohatsu |
369-03200-2 / 369032002M |
| Tohatsu |
393-03200-2 / 393032002M |
| SeaSierra |
369-03200-2 |
| Nissan |
369-03200-2 |
Compatible Engine Models
Confirm your engine model/year in the table below.
Tohatsu
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
| Tohatsu |
M5B |
5 |
2-Stroke |
Early 2000s |
369-03200-2 |
Direct replacement |
Nissan
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
| Nissan |
NS5B |
5 |
2-Stroke |
Early 2000s |
369-03200-2 |
Direct replacement |
Technical Specifications
| Specification |
Value |
| Product Type |
Carburetor Assembly |
| Installation |
Direct bolt-on replacement |
| Fuel Type |
Gasoline |
| Connection |
OEM-style manifold mount |
| Housing Material |
Die-cast aluminum alloy |
| Housing Color |
Silver metallic |
| Fitting Type |
Integral manifold mount |
| Warranty |
Varies by seller (typically 30 days to 1 year) |
| Other Technical Attributes |
Includes main jet #78 |
Package Contents
- 1 x Carburetor Assembly (369-03200-2/393-03200-2)
Installation Guide
- Ensure the engine is off, cool, and disconnected from the battery. Turn off the fuel supply.
- Place a rag beneath the carburetor to catch any fuel spillage.
- Carefully disconnect the fuel inlet hose, throttle linkage, and choke linkage from the old carburetor.
- Remove the two nuts or bolts securing the carburetor to the intake manifold.
- Gently pull the carburetor and its old gasket away from the engine.
- Clean the mounting surface on the intake manifold, ensuring it is free of old gasket material and debris.
- Position the new gasket against the manifold, followed by the new carburetor assembly.
- Secure the carburetor with the mounting nuts or bolts, tightening them evenly to prevent air leaks.
- Reconnect the throttle linkage, choke linkage, and fuel hose.
- Turn the fuel supply back on and check thoroughly for any leaks.
- Reconnect the battery. Prime the fuel system if necessary.
- Start the engine and adjust the idle speed screw as needed for smooth operation.
Troubleshooting & FAQ
Q: How do I confirm this carburetor fits my Tohatsu/Nissan engine?
A: This assembly is a direct replacement for Tohatsu M5B and Nissan NS5B 5 HP 2-stroke models from the early 2000s. The best way to confirm fitment is to match the OEM part number on your old carburetor to one of the numbers listed in our cross-reference table (e.g., 369-03200-2, 393-03200-2).
Q: What are the signs that my outboard carburetor is failing?
A: Common signs of a failing carburetor include difficulty starting, rough idling, stalling at low speeds, poor acceleration, increased fuel consumption, or fuel leaking from the unit.
Q: Is any tuning required after installation?
A: This is a direct bolt-on replacement designed to work out of the box with the included #78 main jet. However, minor idle speed or air/fuel mixture adjustments may be necessary depending on your specific engine's condition and local climate.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.