Yamaha F175A

Specifications

Key technical details and service capacities for the Yamaha F175A.

Engine

4-stroke DOHC inline 4-cylinder, 16-valve

Cylinders

4

Displacement

2785 cm³

Bore × stroke

96.0 × 96.2 mm

Rated output

128.7 kW

Full-throttle operating range

5000–6000 rpm

Idle speed

650–750 rpm

Ignition system

TCI

Fuel induction

Electronic Fuel Injection

Maximum alternator output

50 A

Gear ratio

1.86 (26/14)

Spark plug

NGK LFR6A-11

Spark-plug gap

1–1.1 mm

Starting system

Electric Starter

Recommended fuel

Regular Unleaded Gasoline

Recommended engine oil

Yamalube 4-stroke marine; SAE 10W-30/10W-40/5W-30; API SE/SF/SG/SH/SJ/SL

Engine oil — without oil-filter replacement

4.3 L

Engine oil — with oil-filter replacement

4.5 L

Gear oil capacity

0.980 L

Recommended gear oil

SAE 90 API GL-4 / SAE 80W API GL-5 / SAE 90 API GL-5

Common problems

Start with the symptom you can observe, then review safe next steps.

• Engine cranks but will not start

  The starter turns the engine, but the engine does not begin running. Several fuel-supply or starting-setup conditions are possible; this is not a single diagnosis.

• Unstable idle or stalling

  The engine starts but does not maintain a stable unloaded idle, or it stops. Fuel-path conditions are possible and unresolved cases require professional diagnosis.

• Engine lacks power

  The engine runs but produces less power than expected. Fuel supply, external load, trim and propeller condition are among the possible areas to inspect.

Engine warnings

Understand what each warning means and the immediate action to take.

• Low-oil-pressure warning

  The warning indicates that engine oil pressure has fallen.

  What to do: Stop the engine immediately and check the engine-oil level only after safe access is possible. Do not continue operating if the warning persists; obtain Yamaha dealer assistance.

• Overheat warning

  The warning indicates that engine temperature has risen abnormally high.

  What to do: Stop the engine safely and inspect the cooling-water inlet. If the cause cannot be found and corrected, obtain Yamaha dealer assistance.

Troubleshooting guides

Step-by-step troubleshooting guidance for common Yamaha F175A issues, warning conditions and related checks.

• Respond safely to a low-oil-pressure warning

  Stop operation and perform the documented engine-oil level check without attempting internal lubrication-system repair.

  View guide

• Respond safely to a Yamaha overheat warning

  Stop operation and perform the limited owner-visible checks documented by Yamaha.

  View guide

• Check fuel supply and starting basics

  Perform limited visible fuel-supply and starting-setup checks without opening the fuel system.

  View guide

• Check external load and propeller condition

  Inspect owner-visible external conditions that can contribute to inadequate power.

  View guide

Recommended maintenance schedule

Yamaha publishes the hour and calendar thresholds together. They are shown descriptively, not as a calculated due date.