If you’re in the market for an outboard motor, scouring the classifieds or browsing online marketplaces can turn up some great deals. However, it’s important to know what you’re looking for when inspecting a used outboard motor to ensure that you’re making a smart purchase. Here are some tips for inspecting a used outboard motor before you buy it.
Inspect the Cowl
The cowl is the outer covering of the outboard motor that houses the engine. Check for any cracks, dings, or scratches in the cowl, as these can indicate damage from collisions or other impacts. Cracks in the cowl can also allow water to seep in, potentially damaging the engine. If the cowl is damaged, it’s a red flag that the motor may not have been taken care of properly. If the motor has been painted, be sure to ask why.
Check the Oil
Pull out the dipstick and check for oil color and consistency. New oil should be amber in color and have a smooth texture. If the oil is dark and gritty or has a burnt smell, it may be a sign of wear or neglect. Also, check for water intrusion in the oil which would be identified by a milky white discoloration.
Inspect the Spark Plugs
The spark plugs are a vital component in the firing of the engine. Remove the spark plugs and check for rust, corrosion, or oil buildup. Replace the spark plugs if they are in poor condition.
Examine the Propeller
The propeller is what propels the boat through the water. Check the blades for any bent or damaged spots. Make sure that the propeller spins freely by turning it by hand. Worn bearings or a damaged propeller could cause a host of problems with the engine.
Inspect the Lower Unit
The lower unit is the section of the outboard motor that connects to the boat and houses the propeller shaft. Check for any cracks, chips or signs of damage to the lower unit. Look for signs of water intrusion, such as corroded hardware or a milky color in the gearcase oil that is visible on the dipstick.
Run the Motor
Most importantly, you’ll want to run the motor to ensure that it’s in good working order. Attach the motor to a water supply, such as a garden hose and ear muffs, to simulate running in the water. Listen for any unusual noises or vibrations, such as knocking or rattling. Make sure that the engine revs up smoothly and runs at a consistent speed. If any problems arise during the test run, that’s a sign that the motor may need some work before it’s ready for use.
In Conclusion
Inspecting a used outboard motor takes a little bit of time and know-how, but it’s well worth the effort to make sure that you’re getting a quality motor. If you’re not confident in your own abilities, have a professional mechanic check out the motor for you. With a little bit of effort, you’ll be able to find a motor that will serve you well for many adventures on the water.