Yamaha 4-Stroke Oil Change – 100-Hour Service Guide Keeping your Yamaha 4-stroke outboard in peak condition starts with timely maintenance. At every 100-hour interval, an oil change should be your first task. Below is a step-by-step guide to h

Yamaha 2-Stroke Oil Maintenance for 100-Hour Service Timely maintenance is the key to outboard engine longevity. If you own a Yamaha 2-stroke with an oil-injection system, performing oil system service during your 100-hour interval is essential. Thi

Maintain Your Yamaha Fuel System Every 100 Hours Yamaha outboards demand reliable fuel delivery—especially after extended use. As part of your 100-hour maintenance, inspecting and servicing your fuel system is essential for preserving performa

Why Mercury Marine Precision Oils Matter Marine engines work under extreme stress: long hours at high RPMs, saltwater exposure, and seasonal inactivity. Mercury Marine Precision Oils & Lubricants are engineered to withstand these challe

Summary Regular maintenance protects your Yamaha outboard from the harsh marine environment. From corrosion inhibitors and marine‐grade greases to fuel additives, external cleaners, and heavy‐duty covers, the right products will restore

Essential Tools and Parts Before commencing the 100-hour maintenance on your Yamaha F115, gather the following tools and parts: Drain pan Oil extraction pump Filter wrench Socket wrench with 10, 12, and 14 mm sockets Spark plug socket (5/8" or 13/1