Well i'm going to start putting together some outboard engine maintenance schedules. Not everyone will feel the same about somethings. On a 2 stroke engine to make one last with todays fuels i believe you need to watch them closely.
Primer bulb and fuel line - I replace twice a year. Lately it seems to be once a year if they are out in the weather non stop. If you see any cracking you probably need to replace it. ------
Water pump They recommend every 200 hours in clean water. If you are fishing how many times have to ran into mud/sand/crap. That kills the rubber impellers. Its 100 hours for trashy or salt water.
Who has a hour gauge? Not me.... Every new outboard engine i get i change the WHOLE kit the first go around. And then next year i just change the impeller. Its not that big of a deal to change. If you are going to own a boat you should know how to change it. Its a cake job.
Once a year for hardcore boaters. Twice a year if you are a goon boater. If you havn't got a water psi gauge i'd get one. They are the berries. If you notice a weak stream or low psi and its fully warmed up. You had better park it and look into the issue. Over heating problems are one of the main causes for outboard engine failures and you can stay away from that for a few dollars. And a little know how. ----
Out of water running
Another big issue on outboard Engines is running them on the hose. Be sure to have adequate water pressure. Use the shortest water hose you have, and turn it on full blast. Its best to get it in a tub of water or in a body of water.
If using ears be sure its sealed up correctly.
The newer mercs have a hose rigging kit built in. (My 2000 merc 150 does) And it seems to work really well.
DO NOT RUN WITH NO WATER... Not only does water cool the engine but it also acts as lubrication for the impeller. ----
Lower Unit Grease, Prop and Propshaft Maintenance
Before freezing weather each year you should change your lower unit grease. It is also a good time to pull your prop and check for fishing line that can tear into your shaft seals. Grease the shaft before replacing your prop (especially in saltwater applications). Do not loose the fill and full plug gaskets.I change these ever 2 years.Or immediatly if i see water. If your lower unit grease has ANY water in it or comes out looking like coffee double cream,you have a problem somewhere that needs to be corrected. Water in your lower unit will lead to freeze damage and will lead to excessive wear and gear failure. ---- Props
If you have one slightly bent or nicked....get it fixed. Just imagine putting a 1/2 ounce weight on one blade of a ceiling fan and then turning the fan on High. It won't take long for the out-of-balance condition to tear the fan apart. It also won't take long for that out-of-balance prop to cause serious if not catastrophic consequences to your motor.
This post has been edited by bobkyle2: Jul 26 2012, 04:57 AM