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I think it will be flooding. Some carbs that drain screw drains the water from the bottom of the bowl and out that nipple, but the nipple is actually attached to a brass tube in the bowl that goes up high and drains fuel if it gets too high.. Or to explain it differently, the nipple goes to a tall overflow tube, and the drain screw just lets fuel bypass the top of the overflow and go straight into the tube from the bottom. Hope that makes sense. And yeah, the fluctuating speed and all could definitely be caused by changing float level.. Once you have it off then you can give it a good clean and know it's good. I'd do it. And.. I take heaps of carbs apart, clean them and put them together again without changing a single part, and they are all good. The only problem is if the rubber gasket between the bowl and body is old and shrunk or swollen and doesn't want to stay in it's groove when it's time to put it back together.. Then I fit it all carefully all the way around holding it down with a 25 thou feeler gauge to hold it flat and in the groove till I've pressed the bowl into place, then I slip the feeler out. Everything else goes back together easy. Take every brass bit out and clean them. Clean the tiny holes in the sides of the emulsion tube the main jet screws into and that the slide needle drops down into. Take the float needle seat out and check the O ring or gasket that seals between it and the body. People seem to assume it's only the seat and needle that play up and leave the seat in.. Bad plan.

You are trying to get the screws out, the ones that hold the float bowl on ? Get an impact driver bit, it's called a No2, and tap it with a small hammer before you try turning it, that seats the driver and loosens the threads, then use the impact driver if you have one, or use a spanner on the bit while you push the bit down hard. If all else fails use channel lock pliers and get them out or cut a slot and use a conventional screwdriver. The screws are just a common metric thread. I'm pretty sure they will be four mill. An engineering supply or auto supply shop should have a plastic box with a range of metric bolts that will do the job, they sell them individually, or a bike shop will have some laying around probably. Four mill is the outside diameter, and what they get described as..

Hello there I'm having a problem finding a quality carburetor for a 1993 Suzuki Quad Runner lt-f 250 2x4. I find a lot that have 3-4 star ratings. And all so far don't have the right throttle Cable inlet at the top. The last one I got 4 star on Amazon has a threaded cable sheath rest that could be partially drilled to work. I would prefer to get one I don't have to modify. Any recommendations are greatly appreciated!

Even if condensation did form it shouldnt be enough to get into your carb and cause problems, so it probably was water in your gas can.

If it has a diaphragm on the side and it's stuck in place you grind the end of a feeler to a sharp edge right around the end of it and use it to gently prise and work the diaphragm off.

I can confirm that is was a flat six. Mine was the dual carbureted model. A friend had a fancier version with a turbo charger. That was a fast auto. It should be noted that to save $15 per car GM left out an anti-sway bar in the early days. This caused a tendency to roll over in aggressive turns. Ralph Nader wrote a whole book on the topic. GM finally made the required changes, but the car was soon dropped. My buddies car cornered very well. I guess it was an newer model. In my case, I guess it's better to be lucky than smart. tom Here's wikipedia article on the history of the song. https://americansongwriter.com/meaning-of-yankee-doodle-song-lyrics/ Apparently it was written by the British to insult the colonists, but was taken up by the Yanks as a taunt to the Brits. tom

I have a feeling the water got in the plastic gas jug sitting on my porch so long. The jug doesn't have a way to seal the poor spout. I'm going to get a new gas jug. I'll not make that mistake again! 😄

Water shouldn't really get into your tank. With steel tanks moisture in the air condenses on the cold steel and settles to the bottom. Plastic tanks don't do that. I'd be suspecting the water was in the fuel before it got put in the bike. I'm in the far north of N.Z. and we have a climate they describe as "marine" and "semi-tropical", and my humidity hardly ever gets below about seventy percent, mostly it's over eighty and it hovers near ninety-six for weeks at a time sometimes, and it goes up to ninety-nine just before it rains sometimes. But as long as I buy clean fuel, and store it in plastic jerry cans, I don't get water in my fuel. I always pour most of the fuel out of the jerry can into the bike, then leave a little in the can, or peer in there looking for water. The gas stations are pretty good these days though and it's rare to get water in the fuel. Once it was really common.

I havent tried the Alcohol but the Berryman B12 Chemtool is the best carb cleaner i have ever used. Walmart or any autosupply stores carry it. Autozone, Oreileys, Advance.

I just took the tank off mine, very simple to do, these plastic tanks are so easy to clean, just washed it out with the water hose mine didnt even have any crap in it, then let it dry for a couple of days, but if in a hurry use a hair dryer to dry it out, so easy compared to the metal mororcycle tanks i usually deal with, 30 years of crud varnish and rust i usually use muriatic acid to clean them, nasty stuff, dont have to do any of that with ATV tanks, but i do use Berryman B12 chemtool as an additive to keep the carb clean and water formation in the tank to a minimum and i always use non-Ethynol fuel in my small engines. More expensive but it does help.

I didn't take the tank off and clean it out. I just unhooked the line from the fuel pump and drained the gas from tank and the float bowl on the carburetor. I'm going to definitely try using the alcohol if the Heet doesn't do the job. Thanks again Mech! 🙂

I mostly use my quad for work, carrying myself and equipment to places on the land, and it's steep hilly land so a lot of it turns into a bit of an adventure, but when my sons were young we made a mud hole with a skid pan next to it and we had so much fun and so many laughs over there. Mud is good !

@ jamo- A bit closer to town than you-I'm up Haywire Gulch! I pass Rogers Lake Rd every time I make the dump run/

You must be close, I'm on Rogers Lake Road!

FWIW, on my Kawasaki Bayou 300 4x4, the guy I bought it from made a plow winch from a Mercedes car power window motor and mounted it on the front rack. Used the original power window buttons. Works fine for about 45 mins-then the battery begins to struggle due to voltage drop.