The 2025 Yamaha T9.9XPB is a lightweight yet powerful out‑boat engine designed for bass fishing, flats navigation, and multi‑species vessels. With only 102 pounds of weight, this high thrust motor delivers impressive performance while remaining easy to handle on small boats.

Key specifications:

• Engine type: Two‑cylinder, 212 cc displacement
• Power output: 9.9 horsepower at 5,500 rpm
• Shaft options: 20” or 25”, suitable for both shallow and deeper waters
• Remote high thrust aluminum prop with power trim capability (–4° to +16°)
• Weight range: 102 lb – 114 lb, depending on shaft length
• Fuel system: Ethanol blend limit of 10%, recommended octane 87 fuel
• Spark plug: BR6HS‑10 with CDI microcomputer ignition
• Starter: Dual electric and manual options for reliable start-up in any situation
• Cooling: Thermostatic control ensures optimal engine temperature during extended runs
• Gear ratio (primary): 2.92 :1, with forward, neutral, reverse shifter
• Electric alternator: 6‑amp for onboard electrical needs

The T9.9XPB’s design supports up to a 25‑inch transom, making it ideal for boats that venture into rougher waters while still offering the agility needed in shallow flats or tight fishing spots. Its compact size and lightweight construction reduce overall boat weight without sacrificing power.

Performance Highlights

• Tiller-handle compatibility: Works seamlessly with both tiller‑handle controls and mechanical steering systems.
• Steering angle: Maximum 38° from center in either direction for precise maneuverability.
• Exhaust design: Through-propeller exhaust enhances thrust efficiency while minimizing back pressure.

Durable Build and Reliability

The engine’s wet sump lubrication system, combined with a robust 6‑amp alternator, ensures consistent performance even in demanding fishing conditions. The 3‑year limited pleasure boat warranty (1 year for commercial use) reflects Yamaha’s confidence in the motor’s longevity.

Installation and Maintenance

• Oil capacity: 0.8 L of recommended Yamalube® 4M oil.
• Fuel filtration: External Yamaha 10‑micron fuel/water separator for clean operation.
• Regular checks on the CDI system, spark plug, and intake ports keep the engine running smoothly.

This high thrust outboard is engineered to give you strong, reliable power while keeping your vessel light and agile—perfect for anglers who demand performance without compromise.