2000 Yamaha 100 HP Four-Stroke Outboard Motor

Experience smooth performance and reliability with the 2000 Yamaha 100 HP Four-Stroke Outboard Motor—an efficient and versatile powerplant that's as user-friendly as it is durable.

Power & Performance

This inline-four, four-stroke engine delivers a solid 100 horsepower at 5,500 rpm, offering a dependable thrust across a versatile throttle range of 5,000–6,000 rpm 

Engine Design

• Type: 16-valve, SOHC In-line 4-cylinder

• Displacement: 1,832 cc

• Bore x Stroke: 81.0 mm × 88.9 mm 

• Compression Ratio: Approximately 10.0 :1 

Fuel & Ignition Systems

• Fuel System: Electronic Fuel Injection (EFI) ensures responsive throttle control and efficient fuel use 

• Ignition: TCI microcomputer-based ignition delivers precise spark timing for reliable starts 

Starting & Control

• Starting System: Primarily electric start, with some variants offering manual start options 

• Controls: Compatible with remote throttle/shift controls or tiller handle, depending on setup 

Structure & Features

• Lubrication: Wet sump system simplifies maintenance 

• Cooling: Water-cooled, thermostatically regulated to maintain consistent engine temperature

• Trim & Tilt: Power trim and tilt give you control over ride height and handling with ease 

• Alternator Output: 24V system delivering ~35A, effective for charging boat batteries and powering accessories

• Gear Ratio: Around 2.15:1, optimizing propeller torque 

Dimensions & Weight

• Shaft Length Options: Standard (20.3" / 516 mm) or Extended (25.3" / 643 mm) 

• Dry Weight: Approx. 162–171 kg (357–377 lbs), depending on shaft configuration 

• Oil Capacity: Around 3.0–3.7 liters, depending on whether the oil filter is replaced 

Why the 2000 Yamaha 100‑HP Four Stroke Stands Out

• Fuel Efficiency & Clean Running: Four-stroke design and EFI deliver smoother operation and improved fuel economy.

• Quiet & Smooth Operation: Yamaha’s engineering ensures quieter performance compared to two-stroke alternatives

• Ease of Control: Electric start, optional tiller control, and power trim/tilt enhance usability for all skill levels.

• Built to Last: Sturdy build quality and available parts manuals make maintenance straightforward.

• Lightweight Advantage: Compared to larger four-strokes, this engine’s relatively modest weight makes installation and handling easier.