Home › Forum › Ask A Member › Tillotson Carb Question › Re: Tillotson Carb Question
OK, for all practical purposes, the fuel for starting the engine would be flowing through the high speed circuit, not the idle circuit. Generally speaking, that would be from the float bowl to the area of the high speed needle tip, from there to the main nozzle in the venturi, and out to the reed valves. Given the size of those passages, it would be pretty difficult to obstruct them so much as to not even allow enough fuel to even start the motor.
Besides, you just said you swapped carburetors and it didn’t help. I think you can lay the carburetor idea aside and look for something else.
Perhaps you should be thinking about crankcase sealing. Or for some reason the upper crankcase chamber is not isolated from the lower chamber (for instance reed plate gasket).
I have no clue what the actual problem is, just speaking in generalities.
Will it start out of the water? Yeah, I know, mind the water pump.