// Maintenance
Technical How-To
Step-by-step instructions and professional advice designed to help you maintain and identify your marine engines.
// Identification How to Read an Outboard Motor Serial Number (All Major Brands)
Find your engine's exact year and model in under 2 minutes with our comprehensive decoding guide for the Big Six manufacturers.
// Seasonal Care Outboard Motor Winterization: Complete Guide by Engine Type
Step-by-step instructions for winterizing 2-stroke and 4-stroke outboards, including a printable storage checklist.
// Performance What Size Outboard Motor Do I Need? Complete Sizing Guide
Not sure what size outboard to buy? Use the HP-per-100-pounds rule and check your boat's max HP plate.
// Vintage Service Chrysler 105 Outboard: Full Specs, Common Problems & Parts Guide
A complete technical deep-dive into the Chrysler 105hp 2-stroke, covering ignition troubleshooting, fuel ratios, and parts compatibility.
// Diagnostics How to Decode Evinrude E-TEC Fault Codes: Diagnostic & LED Guide
Troubleshoot your E-TEC engine using the built-in EMM LED lights and diagnostic software. Full code list and S.A.F.E. mode explained.