Johnson Performance Propellers | Precision-Engineered for Johnson/Evinrude 2-300HP Outboard Motors

Product Introduction:

Engineered to unlock your outboard's full potential, Johnson Performance Propellers deliver optimized thrust and efficiency through advanced hydrodynamic designs. Our propellers feature innovative blade geometries that maximize water displacement while minimizing energy loss, ensuring superior acceleration and top-end performance across all RPM ranges.

Installation Procedures:

1. Pre-Installation Checklist:

   • Verify propeller spline count matches your driveshaft
   • Inspect thrust hub for wear or damage
   • Check shear pin condition (if applicable)

2. Mounting Process:

   • Align splines carefully before sliding propeller onto shaft
   • Install thrust washer with concave side facing propeller
   • Torque retaining nut to manufacturer specifications (typically 55-75 ft-lbs)
   • Secure with cotter pin or locking tab

3. Post-Installation Verification:

   • Confirm free rotation without binding
   • Check for proper clearance between propeller and gearcase
   • Perform water test to verify performance

Safety Precautions:

• Always disconnect spark plugs before propeller installation
• Never test propeller operation out of water
• Wear cut-resistant gloves when handling propellers
• Maintain minimum 1" clearance between propeller blades and transom
• Replace damaged propellers immediately - hairline cracks can lead to catastrophic failure

Frequently Asked Questions:

Q: What's the difference between standard and cleaver-style blades?
A: Standard blades offer better acceleration while cleaver designs provide superior high-speed performance with less bow lift.

Q: How does blade rake affect performance?
A: Increased rake improves bow lift for better rough water handling, while reduced rake enhances stern lift for faster planing.

Q: Can I repair a damaged aluminum propeller?
A: While minor damage can be repaired, we recommend replacement as repairs may affect balance and performance.

Q: Why does my propeller have ventilation holes?
A: These ports help reduce cavitation during acceleration by allowing exhaust gases to escape more efficiently.