The Yamaha 30HP 2-Stroke Outboard Motor is a lightweight, high-torque marine engine built for skiffs, utility jon boats, inflatables, and commercial transport craft. Featuring a simple, time-tested 496 cc twin-cylinder platform, this engine delivers rapid acceleration and low-end torque that instantly lifts light hulls onto plane.
As part of our dedicated Yamaha Outboard Motors pillar hub, this 2-stroke engine offers an unbeatable power-to-weight ratio for boaters who prioritize raw acceleration, ease of service, and portable reliability. You can also compare this platform against our wider selection of 4-Stroke Outboard Motors to evaluate weight differences and fuel requirements across our full lineup.
Designed with fewer moving parts than traditional four-stroke engines, the 30HP 2-stroke minimizes mechanical complexity while maintaining consistent performance under demanding work conditions.
Loop-Charged Fuel Induction & Lightweight Design
Every Yamaha 30HP 2-Stroke Outboard Motor utilizes loop-charged fuel induction, which optimizes fuel-air mixing inside the combustion chambers. This process boosts power output, improves combustion efficiency, and ensures smooth power delivery across the full throttle range.
Engineered for quick startup, the manual recoil and electric start models utilize a CDI (Capacitor Discharge Ignition) system to send a precise spark for easy starts in diverse weather conditions. A high-output charging system on electric-start models provides battery power to run basic navigation lights, depth sounders, and bilge pumps.
Marine Corrosion Defense & Casing Construction
Built to handle tough commercial and recreational water environments, Yamaha constructs this 30HP outboard casing using proprietary YDC-30 aluminum alloy. Advanced multi-stage electro-deposition paint layers, topped with a protective acrylic clear coat, shield external metal surfaces from harsh salt spray and UV fading.
Internal cooling passages feature strategically placed sacrificial anodes to combat galvanic corrosion. Post-use maintenance is fast and straightforward using the integrated freshwater flushing port, allowing you to flush salt and sand out of the cooling jacket using a standard garden hose.
Simple Maintenance & Hydrodynamic Gearcase Design
With no oil filters or valve train adjustments required, the Yamaha 30HP 2-Stroke Outboard Motor significantly reduces routine maintenance overhead. Owners benefit from simple spark plug replacements and straightforward lower-unit gear lube changes.
The lower unit features a streamlined hydrodynamic gearcase designed to minimize drag through the water. Precision-cut spiral bevel gears deliver smooth engagement between forward, neutral, and reverse, ensuring long gear life and dependable response when working around docks or shallow riverbeds.
Technical Specifications
| Feature | Specification |
| Engine Type | 2-Stroke Inline 2-Cylinder |
| Displacement | 496 cc (0.496L) |
| Bore x Stroke | 72.0 mm x 61.0 mm |
| Full Throttle RPM Range | 4,500 – 5,500 RPM |
| Fuel Delivery | Single Carburetor |
| Pre-Mix Ratio | 50:1 (Gasoline to 2-Stroke TC-W3® Oil) |
| Gear Ratio | 1.85:1 |
| Dry Weight | ~117 lbs (53 kg) |
| Recommended Oil | Yamalube® 2M TC-W3® Outboard Oil |
| Trim & Tilt | Manual Trim & Tilt (Shallow Water Drive) |
Industry Standards & Certification Yamaha 30HP 2-stroke outboard motor
Yamaha marine engines are built to comply with international marine build standards. To learn more about hull capacity limits, vessel rating guidelines, and safety testing, explore resources at the National Marine Manufacturers Association (NMMA) and review environmental standards through the U.S. Environmental Protection Agency (EPA).
Choosing the Right Shaft Length & Rigging
Selecting the proper shaft length is critical to keep your propeller submerged and avoid ventilation. The Yamaha 30HP 2-Stroke Outboard Motor is available in 15-inch Short (S) and 20-inch Long (L) shaft options to fit standard transom heights on utility, fishing, and commercial hulls. It can be configured with either an ergonomic tiller handle or mechanical cable remote steering setups.
Frequently Asked Questions
Q: What fuel-to-oil mix ratio does the Yamaha 30HP 2-Stroke require?
A: Following the initial break-in period, this engine uses a standard 50:1 fuel-to-oil pre-mix ratio using quality 87 Octane gasoline and TC-W3 certified 2-stroke outboard oil.
Q: Is the Yamaha 30HP 2-Stroke easy to transport?
A: Yes, weighing approximately 117 lbs (53 kg), it is one of the lightest 30HP outboards available, making it easy to haul, mount, and transfer between vessels.
Q: Does this model include a shallow water drive feature Yamaha 30HP 2-stroke outboard motor?
A: Yes, it features a multi-position manual tilt system with a dedicated shallow water drive position to navigate skinny water and protect the lower unit from underwater obstructions.
Q: What warranty coverage comes with this outboard?
A: All new Yamaha outboards sold through Amita Outboards include full factory warranty protection. Please review our Warranty Policy for complete terms.
Q: How is this engine shipped?
A: Engines are safely bolted into protective wooden freight frames and shipped via heavy ground freight. Details regarding liftgate delivery can be found on our Shipping & Freight Policy page.
Disclaimer: Product specifications, engine dimensions, weight, and availability are subject to manufacturer updates. Always verify transom height and boat weight capacities prior to installation.
Reviews
There are no reviews yet.