I would replace the carb, for whatever reason they don’t always clean up anymore, I don’t know why.
Short of a Suzuki 9.9 fuel
injection or other fuel
injection motor, they all have carburetors, and the Suzuki is big, heavy and real expensive, it’s that way because it’s the same as the 15 and 20 HP Suzuki.
Get yourself a ultrasonic cleaner if your going to be in the carburetor cleaning
Once you get a new carb, you can use either airplane gas or something sold
in home improvement stores and called tru-fuel. Expensive but supposedly doesn’t mess up carburetors and if you don’t burn much fuel may be your best bet.
generators and other small motors are converted to propane
, I don’t know why a small outboard
can’t be. Used to be a line of Propane outboards nut is was never impressed with the quality, and as I assume parts
are no longer available I wouldn’t buy a used one. Lehr I think.
I’m going to guess a new carb and tru-fuel is your best bet. I think it comes in pre-mix for two strokes and straight gas for four strokes, I have never tired it myself but think the cost is similar to propane. People will argue that, but you have to burn twice as much propane for the same energy as gas.
On edit there are better prices for carburetors than your local dealer