NHNXM.2222G0

Inspect the cooling-water intake and discharge condition, hoses, clamps, water-pump service components, thermostat or temperature-control components where fitted, and accessible cooling passages for restriction, leakage, corrosion, or salt accumulation. Check the fuel system for water, leaks, deteriorated hoses, restricted filters, damaged connectors, and evidence of stale or contaminated petrol, and inspect ignition components for corrosion, tracking, loose terminals, or heat damage. Examine engine mounts, transom or bracket attachment, steering and trim components, propeller and propeller shaft, sacrificial anodes, and the lower unit or gearcase where fitted for impact damage, leakage, abnormal play, corrosion, and fishing-line ingress. During a running check, observe starting behavior, idle stability, cooling response, charging condition, warning indications, abnormal smoke or odor, vibration, shifting quality, and the ability to accept load without misfire or hesitation. A surveyor should compare the engine identification with the installed documentation and look for unauthorized modifications, improvised wiring or fuel repairs, evidence of repeated overheating, corrosion around electrical and cooling components, and leakage into the water or bilge. For tightening torques, service intervals, diagnostic limits, fluid specifications, wear limits, and model-specific tests, refer to the manufacturer documentation for the exact figure.