2024 Yamaha Outboards Midrange 115 hp Base
- Year 2024
 - Make Yamaha Outboards
 - Model Midrange 115 hp
 
2024 Yamaha Outboards Midrange 115 hp
The sun glints off the water as you head down to the dock for a day with family and friends. Whether you’re trolling for sand bass or towing a skier, Yamaha’s Midrange outboards are ready to fuel the fun. Built to be fast, light and powerful, they’re perfect for mid-sized craft like deck or multispecies boats, and select models offer a 25” shaft option for added versatility. Go ahead and take off for the day with Yamaha’s Midrange 115, 90 and 75 hp outboards.
Our 1.8-liter Midrange F115 features a double overhead camshaft with four valves per cylinder. This increases volumetric efficiency and gives the F115 a competitive power to weight.
Features may include:- Only 377 pounds
 
- Available in 20” or 25” shafts
 
- Powerful 35-amp alternator
 
- Optional Variable Trolling RPM via the Command Link® tachometer
 
Power and Performance
POWER AND EFFICIENCY- Precision Multi-Point Electronic Fuel Injection delivers the exact amount of fuel needed for optimum performance and efficiency. Yamaha’s EFI optimizes fuel atomization further enhancing fuel economy.
 
- The Composite Intake Manifold on the F115, F90 and F75 feature long tube intake tracks, tuned to increase airflow, which boost low-end and midrange torque. This means a more powerful hole shot and increased acceleration. Even with all this responsive power, an air silencer box and surge tank reduce air intake noise and air turbulence for smooth, quiet operation.
 
- A TCI microcomputer ignition adjusts timing to maintain optimal engine performance, economy and power under all operating conditions.
 
- To keep weight down and efficiency up, the F115 has a double overhead camshaft, and the F90 and F75 feature a single overhead camshaft, but still deploy four valves per cylinder. That setup means less mass in the cylinder head and reduced weight for the overall outboard. At the same time, four valves per cylinder means great engine combustion, which contributes to horsepower, torque and fuel efficiency.
 
Convenience and Control
MULTI-FUNCTION TILLER HANDLE- The F115 and all-new F90 and F75 are compatible with Yamaha’s award winning Multi-Function Tiller Handle. It incorporates engine start/stop, emergency stop, gear shift, power trim and tilt operation, variable trolling switch, warning and controls all in one.
 
- The F115, F90 and F75 feature three-phase alternators that produce up to 35 amps of power. For the 90 and 75 hp, that’s 40 percent more output than previous designs, and for the 115, it’s more than 45 percent more charging power. That’s plenty of electrical power for battery charging and accessories, with more to spare.
 
- The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. It even allows for sub-idle trolling. This is a major plus for anglers.
 
- The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. It even allows for sub-idle trolling. This is a major plus for anglers.
 
Engine
							Engine Type
							Inline 4
						
						
							Engine Power
							Prop Shaft: 115hp at 5500 rpm
						
						
							Displacement
							1.8L
						
						
							Bore
							3.19 in (81 mm)
						
						
							Stroke
							3.5 in (88.9 mm)
						
						
							Compression Ratio
							10.0:1
						
						
							Throttle
							Full RPM Range: 5300 ~ 6300 rpm
						
						
							Steering
							Mechanical Remote/Tiller | Angle (maximum): 35° from center, either direction
						
						
							Exhaust
							Through Propeller
						
						
							Ignition
							TCI Microcomputer
						
						
							Oil Type
							Recommended: Yamalube® 4M / (See owner's manual)
						
						
							Lubrication
							Wet Sump
						
						
							Cooling
							Recommended: Thermostatic Control
						
						
							Gear Ratio (Primary)
							2.15:1
						
						
							Gear Shifter
							Forward, Neutral, Reverse
						
						
							Induction
							EFI
						
						Spark Plug
							Spark Plug
							LKR6E
						
						Electric
							Starter
							System: Electric
						
						
							Alternator Output, Maximum
							Output at W.O.T.: 35 Amp
						
						Fuel System
							Fuel System
							Ethanol Blend Limit: 10% Maximum
						
						
							Fuel Type
							Recommended: Octane 87 | Recommended Filtration: Yamaha 10-Micron Fuel / Water Separating Filter (external)
						
						Dimensions
							Length
							Shaft: 20" - 25"
						
						
							Dimensions
							Degree of Tilt: 70° | Degree of Trim: -4° through +16° | Mounting Centers: 26"
						
						Capacities
							Oil capacity
							3.2/3.0L
						
						Weights
							Weight
							377 lbs (171 kg) - 386 lbs (175 kg)
						
						Features
							Features
							Intake: 16 | C.A.R.B. Rating: 3-Star
						
						Warranty
							Warranty
							Limited 3 Year Limited Pleasure Boat - 1 Year Limited Commercial