Yamaha Authorized Service

Yamaha Outboard Maintenance Schedule

Yamaha is the most common outboard we touch — and it's the most predictable when it's maintained on schedule. Here's exactly what gets done at each interval, straight from twenty years of running them on the Treasure Coast.

20 HR

20-Hour Break-In Service

The first service on a new or repowered Yamaha outboard. Done right, it sets the engine up for a long, trouble-free life.

Initial engine oil & filter change (break-in oil out)
Lower unit gear oil change
Linkage, throttle, and shift cable inspection & lube
Torque check on engine and rigging hardware
Cooling system flush & telltale verification
Computer scan for fault codes accumulated during break-in

100 HR

100-Hour Annual Service

Yamaha's recommended yearly service for in-season outboards. Catches the small stuff before it grows.

Engine oil & filter change (Yamalube 4M / 10W-30)
Spark plug replacement (NGK or Yamaha OEM)
Primary & secondary fuel filter replacement (10-micron + onboard)
Lower unit gear oil change with magnetic plug inspection
Battery & charging system load test
Anode (zinc) inspection on midsection and lower unit
Visual rigging, hose, and clamp inspection

300 HR

300-Hour Major Service

The service that prevents overheats and salt-water damage. Skipping it is the #1 reason Yamahas get towed in.

Everything in the 100-hour service
Water pump impeller, housing, and key replacement
Thermostat(s) and poppet valve replacement
All sacrificial zinc anodes replaced
Powerhead corrosion inspection
Compression test (cylinder balance check)
Steering and tilt/trim fluid check

Ready to schedule yours?

Drop us a line with your engine model, year, and current hours. We'll quote the right service interval and book you in — usually within the week.

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