The 2011 Yamaha 100HP 4-Stroke Outboard Motor is a used marine engine advertised with approximately 235 operating hours, a 20-inch shaft, and controls and gauges included.
According to the seller, this Yamaha outboard performs very well and has a strong, healthy engine. Its 100HP rating makes it a potential option for compatible fishing boats, recreational vessels, and other boats designed for this horsepower category.
The four-stroke engine design is intended to provide dependable marine propulsion for everyday boating applications. Yamaha’s outboard range is widely used across recreational fishing and boating, although the precise technical specifications of this particular engine depend on its model identification and configuration.
This motor is advertised with controls and gauges included, which may help simplify a repowering project when the components are compatible with the intended boat and installation. Buyers should confirm the exact control system, gauge types, wiring harness, and any additional rigging required.
The reported 235 operating hours provide useful background when evaluating this used outboard. However, operating hours alone do not establish mechanical condition. Buyers should review available maintenance records, verify the hour reading where possible, and arrange a qualified marine-engine inspection before completing the purchase.
With its advertised 20-inch shaft and included controls and gauges, this Yamaha 100HP outboard may be worth considering for a compatible boat replacement or repowering project.
Product Specifications
Brand: Yamaha Marine
Model: Yamaha 100HP Four-Stroke Outboard
Model Year: 2011
Horsepower: 100 HP
Engine Type: Four-Stroke
Engine Configuration: Confirm exact model
Displacement: Confirm exact model
Fuel System: Confirm exact model
Shaft Length: 20 inches, according to seller
Engine Hours: Approximately 235 hours
Rotation: Right-hand rotation, according to seller
Controls: Included, according to seller
Gauges: Included, according to seller
Propeller: Confirm whether included
Condition: Used; strong performance and healthy engine reported by seller
Maintenance History: Not provided
Warranty: Not specified
Confirm the engine identification plate and applicable Yamaha documentation before publishing additional technical specifications.
Key Features
2011 Yamaha 100HP outboard motor, four-stroke marine engine, approximately 235 reported engine hours, 20-inch shaft, right-hand rotation reported by seller, controls included, gauges included, strong performance reported by seller, suitable for compatible fishing and recreational boats, used Yamaha outboard for repowering applications.
Why Choose the Yamaha 100HP 4-Stroke Outboard Motor?
The Yamaha 100HP 4-Stroke Outboard Motor is an option for boat owners looking for a used outboard with useful accessories included.
Its 100HP rating may suit compatible fishing boats and recreational vessels. The advertised controls and gauges can be beneficial for buyers who need compatible operating equipment for an installation or engine replacement.
The seller describes the engine as strong and healthy, with approximately 235 operating hours. Buyers should still confirm the maintenance history, operating hours, cooling-system performance, charging system, lower-unit condition, and overall mechanical health before purchase.
Four-Stroke Marine Engine
Four-stroke outboards are designed to deliver marine propulsion through a four-stroke combustion cycle. Actual fuel economy, power delivery, noise, and operating performance depend on the specific engine model, condition, installation, and vessel setup.
Confirm the exact Yamaha model code to identify its displacement, fuel delivery system, recommended operating RPM range, and applicable maintenance requirements.
Approximately 235 Engine Hours
The seller reports approximately 235 operating hours on this Yamaha 100HP outboard.
Ask for any available service invoices, maintenance records, and diagnostic information. Where possible, verify the hour reading and have a qualified marine technician inspect the engine before purchase.
A compression or leak-down test, where appropriate for the exact engine model, and an assessment of the cooling system, fuel system, charging system, and lower unit can help provide a more complete picture of the engine’s condition.
20-Inch Shaft Configuration
This Yamaha outboard is advertised with a 20-inch shaft.
Correct shaft length is essential for appropriate mounting height, cooling-water intake, steering clearance, and overall installation. Confirm the actual shaft configuration and the boat manufacturer’s transom requirements before purchase.
Controls and Gauges Included
According to the seller, controls and gauges are included with this Yamaha 100HP outboard.
Before ordering, confirm the control type, gauge models, wiring harness, connections, and compatibility with the engine. Also establish whether a propeller, steering components, mounting hardware, or other rigging accessories are included.
Right-Hand Rotation
The seller describes the engine as having right-hand rotation. Confirm the precise rotation specification and propeller arrangement using the engine identification details and applicable Yamaha documentation.
Correct propeller compatibility is important for suitable engine operation, handling, and performance.
Reported Performance and Condition
The seller describes this motor as performing very well and having a strong, healthy engine.
These statements reflect the seller’s description and are not an independent mechanical assessment. Request a demonstration or inspection where practical, and review the available maintenance history before making a purchase decision.
Maintenance and Long-Term Ownership
Follow the applicable Yamaha owner’s manual for fuel requirements, engine oil, filter replacement, cooling-system checks, lower-unit lubrication, corrosion prevention, and scheduled servicing.
For a used outboard, maintenance documentation and inspection findings are particularly useful when assessing its suitability for continued operation.
Ideal Applications
The Yamaha 100HP Four-Stroke Outboard Motor may suit compatible fishing boats, recreational vessels, and other boats approved for 100HP outboard propulsion.
Before installation, verify the boat manufacturer’s maximum horsepower rating, engine weight limits, transom configuration, shaft length, steering compatibility, and control requirements.
Shipping & Availability
Contact Norman Outboards to confirm current availability, engine identification and serial number, reported engine hours, shaft length, included controls and gauges, propeller availability, and shipping costs.
Taxes, delivery, installation, and additional rigging have not been specified and should be confirmed separately. Request a written invoice identifying the engine and all included components.
The 2011 Yamaha 100HP 4-Stroke Outboard Motor is advertised with approximately 235 hours, a 20-inch shaft, controls, and gauges included
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