Description

Yamaha F20SMHB 4 Stroke 20hp Outboard Motor Short Shaft
Specifications
ENGINE
Engine Type Two-cylinder, In-line
Displacement 432 cc
Bore x Stroke 65 x 65.1 mm
Full Throttle RPM Range 5000 – 6000
Variable Trolling RPM Range 750–1050 rpm
750–1050 rpm 900 rpm
Horsepower Rating at Propshaft 20 hp at 5500 rpm
Compression Ratio 9.3:1
Fuel Induction/Scavenging SOHC, 2 valves per cylinder
Alternator Output 16 amp
Starting Method Manual
Ignition CDI Microcomputer
Lubrication Wet Sump
Degree of Trim 4 positions (manual operation)
Degree of Tilt -4 through +62˚ (manual tilt)
Exhaust Through Propeller
Cooling Water, Thermostatic Control
DRIVE
Gear Shift F-N-R (Forward-Neutral-Reverse)
Gear Ratio 2.08:1
SHAFT LENGTH
See Model Code S=15″ L=20″

General Features:

POWER/PERFORMANCE

• Enhanced Acceleration and Performance Under Load
• Single Overhead Camshaft
• Battery-less Electronic Fuel Injection
• Wide-Span Mounting System

RELIABILITY/DURABILITY

• CDI Microcomputer
• Wet Sump Lubrication
• Engine Warning System
• Mechanical Single Throttle Valve Intake System
• SST Drive, Prop, Shift Shafts
• SST Steering Tube
• Magnetic Drain Plug
• Sacrificial Anodes
• YDC-30 Aluminum Alloy
• Phaze FiveTM Paint System
• Electro-deposited Powerhead Paint Process

CONVENIENCE/CONTROL

• High-Output (16-Amp) Alternator
• Electric and Pull-Start Available Together (some models)
• Retrofit Electric Start Available
• 45-Degree Steering in both Directions
• Built-In Resting Pads and Carry Handles
• Variable Trolling RPM Switch (VTS®)
• Freshwater Flush
• Spin-on Oil Filter
• Offset Steering Friction Lever
• Auto Decompression Device
• Vibration Reduction Mounting System
• C.A.R.B. Ultra Low Emissions 3 Star Rating
• External Oil Drain Plug

MODEL YEAR : 2023 NEW