03-22-2013, 04:09 AM
Some people change them yearly but it isn't needed in mose cases unless the water stops coming out of the weep hole. Also some people change their spark plugs yearly but that too is a personal call and likely depends more on how many hours you use your motor, I change mine every third year. The most important thing to change yearly is your gas and fuel filter if your motor has one. When I get a new boat or used boat I check the gear oil that first year but if it is ok, I don't check it every year unless I hit the prop which could damaged the seal and cause it to leak. This is only my opinion and I'm sure everyone has their own way of maintaining their motors.
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