Been re powering a few boats with ski team motors and just throwing this out there. If you have not replaced the fuel lines in your boat in the last 5 years or less, I would recommend doing so. The crap fuel/ethanol/mtbe which is out today is wreaking havoc on old fuel lines and they are literally disintegrating from within. This allows black "junk" to get into the fuel system of your outboard. It is cheap insurance vs a clogged carb leaning out a cylinder on a long barefoot run or needing to replace a fuel pump or VST on a fuel injected engine. If your engine is old enough you may want to replace the engine mounted hoses as well. Be sure to have an inline fuel/water separator. The price of fuel line and primer bulbs has gone up a bunch lately due to new EPA regulations. I completely removed the fuel tank from the 20 dyne I repowered last year and had it cleaned by a local shop. The amount of varnish and floating debris in it was pretty staggering.
I am still using ethanol free fuel in anything with a vented tank which includes the boats, bikes, and power tools. It eliminates a multitude of problems. There is apparently a lot of the old fuel line still on the shelves. Look for fuel line clearly marked that it is compatible with ethanol fuels. (marked on the line) jim
