Pre Purchase Engine Inspection


4 Stroke
2 Stroke


  • Inpect Exterior of Engine for Damage / Abuse / Condition.
  • Inpect Exterior of Engine for Damage / Abuse / Condition.
  • Inspect Cowling Gasket for Water Tightness and Latches for Proper Function.
  • Inspect Cowling Gasket for Water Tightness and Latches for Proper Function.
  • Perform a Compression Check and Check Spark Plug Condition.
  • Perform a Compression Check and Check Spark Plug Condition.
  • Visually Inspect Powerhead for Abnormalities.
  • Visually Inspect Powerhead for Abnormalities.
  • Inspect Primer Bulb and Fuel Hose to Engine.
  • Inspect Primer Bulb and Fuel Hose to Engine.
  • Inspect Rigging Hose Condition and Connection to Engine and Boat.
  • Inspect Rigging Hose Condition and Connection to Engine and Boat.
  • Test Run Engine.
  • Test Run Engine.
  • Check Smoothness of Engine at Idle and Higher RPMs. Check for Abnormal Noise.
  • Check Smoothness of Engine at Idle and Higher RPMs. Check for Abnormal Noise.
  • Check ECU for Active Trouble Codes.
  • Check ECU for Active Trouble Codes.
  • Inspect Timing Belt.


  • Check Shifting of Gears - Forward, Neutral, Reverse.
  • Check Shifting of Gears - Forward, Neutral, Reverse.
  • Check Propshaft Alignment.
  • Check Propshaft Alignment.
  • Inspect Lower Unit and Propeller for Impact Damage.
  • Inspect Lower Unit and Propeller for Impact Damage.
  • Check Propeller for cracks.  Check Hub Integrity.
  • Check Propeller for cracks.  Check Hub Integrity.
  • Check Gear Oil in Lower Unit for Water Intrusion or Excessive Metal.
  • Check Gear Oil in Lower Unit for Water Intrusion or Excessive Metal.
  • Check Power Trim and Tilt Operation.
  • Check Power Trim and Tilt Operation.
  • Check Overboard Indicator for Proper Peeing of Cooling Water.
  • Check Overboard Indicator for Proper Peeing of Cooling Water.
  • Check Engine Oil Level and Condition.



  • Check Oil Injection System for Oil Transfer.

  • Check Engine Oil Tank for Contamination.

  • Check Condition of Oil Tanks.
  • Check Yamaha Website for Warranty History and Service Bulletins.
  • Check Yamaha Website for Warranty History and Service Bulletins.
  • Record Engine Hours on Guage and On Engine ECU, if Applicable.
  • Record Engine Hours on Guage and On Engine ECU, if Applicable.
  • Check Steering for Stiffness, Looseness, Leaks, etc...
  • Check Steering for Stiffness, Looseness, Leaks, etc...
  • Check Condition / Operation of Keyswitch and Warning Horn System.
  • Check Condition / Operation of Keyswitch and Warning Horn System.
  • Note Condition of Guage Displays.
  • Note Condition of Guage Displays.