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

Understanding Outboard Propeller Specifications Outboard propellers are meticulously engineered components that significantly impact your boat's performance. Key specifications such as diameter, pitch, and rake determine how effectively your boat mo

Understanding the Importance of Lower Unit Maintenance The lower unit of your Yamaha outboard is crucial as it converts engine power into the rotation of the propeller shaft, propelling your boat forward. Regular maintenance ensures optimal performa

Summary Routine protection keeps your Mercury outboard running smoothly despite grime, salt, and ethanol‐blend fuel challenges. Key products include Corrosion Guard for rust inhibition, marine‐grade grease with PTFE for lubrication, fuel‐sy

Introduction Regular 100-hour maintenance of your Yamaha F115 outboard engine is the key to reliable performance, fuel efficiency, and longer engine life. In this guide, we’ll walk through spark plug inspection, oil and oil filter repl