Normal Engine Operation

Observe engine coolant temperature and engine oil pressure. Temperatures and pressures will vary between engines and with changing operating conditions, temperatures, and loads. See GENERAL ENGINE SPECIFICATIONS in Specifications Section near end of manual for temperature and pressure specifications for your engine.

If coolant temperature rises above the maximum coolant temperature (see Specifications Section) reduce load on engine. Unless temperature drops quickly, stop engine and determine cause before resuming operation.

Operate the engine under a lighter load and at slower than normal speed for first 15 minutes after start-up. DO NOT run engine at slow idle unless necessary for maneuvering out of dock and harbor.

Stop engine immediately if there are any signs of part failure. Symptoms that may be early signs of engine problems are:

• Sudden drop in oil pressure
• Abnormal coolant temperatures
• High marine gear oil temperature
• Unusual noise or vibration
• Sudden loss of power
• Excessive black exhaust
• Excessive fuel consumption
• Excessive oil consumption
• Fluid leaks