Re: How To Make It Last
Elvin is correct. The manuals won't steer you wrong.
The factory parts catalog, available at
http://www.internetoutboards.com/PartsCatalogMenu.htm as well as the service manual, available at any Tohatsu dealer are good to have, in addition to your owner's manual.
As a dealer, mechanic, and an owner of a 9.8, I can add these tidbits:
1- Run regular, organic, 4-stroke ob crankcase oil, especially during break-in. Do not run synthetic crankcase oil. These 4-strokes can "make oil" if operated at slow speeds, and the problem gets worse with synthetic oil. Never overfill the crankcase -- not even a drop extra. These motors hold 0.8 quarts of oil max -- do not put in a whole quart when changing oil -- run with the oil level mid-way on the dipstick. The 8/9.8 does not have a spin-on oil filter; Keep religiously to the crankcase oil and LU lube change intervals, to make sure you keep the oil clean, and flush any particles out by changing the oil.
2- Since most of us have that really short-life E10 gas, don't stockpile more fuel than you will consume in a few weeks, and do run a good stabilizer such as K100-MG in the fuel at all times. Many of our 4-stroke service issues are due to phase separation of the fuel, with the resultant water in the carb. If possible on your boat, install a 10-micron water-separating fuel filter, available from any Tohatsu dealer, and do change the spin-on cartridge at least every 100 hours or annually, whichever comes first, or if your motor seems to be suffering from water-in-the-fuel issues.
3- Follow the Tohatsu website's procedures for off season winterizing. You can find the procedure at
http://www.tohatsu.com/tech_info/index.html
4- Follow the rest of the Factory service intervals, such as lubrication and cleaning, cooling system flushing, anode replacement, water pump kit changes, and valve adjustments, or have your dealer do annual maintenance chores for you.
5- Enjoy your quiet, efficient new motor.
