Do you have any general tips? Again, my first boat so more of a novice in regards to everything.
Unless you got receipts that prove the service history for the outboards and the trailer, I always assumed the previous owner did what most boat owners in the midwest do which is little to no maintenance. Therefore, I did a full service when I got a used boat.
All of these items are easy DIY maintenance. If you haven’t done them before, watch a few videos. Even if you can’t find your specific model, the process is very similar across all model numbers.
– Oil change with filter. No, you don’t need to waste money paying ridiculous prices for Yamaha branded oil that’s really made by Citgo. A good full synthetic oil is better oil anyway.
– Change the fuel filter or the filter/separator unit depending on what came on your outobard.
– Change the spark plugs. Make sure new plugs are gapped correctly.
– Change the lower unit gear lube.
– I personally would always change the water pump impellers because I want to know exactly when it was done. After that I did it every 5 years. There is no need to change the entire pump assembly unless you find excessive wear caused by silt or a foreign object stuck in the pump. Freshwater does not corrode the pumps so changing out the complete pump is a waste of money, just buy the impeller. I’ve done dozens of impeller changes and I’ve only seen one outboard that had a damaged impeller housing liner such that it needed to be completely changed.
As far as the trailer:
– If you don’t have proof of when the bearings were last done, change them and get it over with. This is an easy (if a little messy) job that every boat owner should know how to do.
– Check all trailer lights to make sure they work, which of course on a used boat there is a 0.00125% chance that they actually will all work.
– Make sure the spare tire is in good condition and has air.