Yeah it really should . I'm afraid it's time for carb cleaning . It's not that hard especially if you go by MOB's method in the Fall 06 Concourier . I've been doing mine for several years now with great success .
crack the drains on the carbs and catch the mixture in a glass bottle. let sit, look for water. will be obvious. better than guessing.
remember: the main jet is the 'lowest' jet in the carb with the pilot being quite a bit higher. water settles to the bottom of the bowl/tank.
" I would check the foam, or whatever you used to block part of your air box intake to make sure it's still in place." That got me once. Also if there is water in the tank it will stay there for a long time way down deep. Ethanol added to gas has changed how water in gasoline can be treated. Might try running the tank low, then removing the tank and pouring what is left out. Take an old t shirt and try to dry the tank's inner recesses where water likes to hide. Refill with a known quality of gas purchased from a busy gas station... and make sure the foam is still partially blocking the air box inlets as it was previously.
the issue started a few weeks before I did anything to the filter. I then cleaned the filter and oiled it and put it back. No change. The vent tubes are in place and I have not touched them since reinstalling the carbs a few years back. Do they come off by themselves? The routing was what you guys told me years back. Frankly, I don't remember and haven't taken the tank off since.
How the hell does this happen suddenly one day when I switch to reserve?!You dislodged a bit of crud when you switched to Reserve and it got stuck in one of the float needles, so your fuel level is too high in one carb leading to over fuelling. It needs to be sorted before you get a hydrolock situation.