Syzuki ozark 250 was sitting for a while and had bad gas. i cleaned out gas tank and carb all jets and fuel lines .i can start it but it will not idle? runs fine when giving it the throttle... this is a 4 wheeler 2005

the most likely problem is; 1-old gas, 2-carb is now gummed up from old gas.

Start off by draining all of the old fuel from the tank, fuel lines and carb. Get a can of spray carb cleaner and clean jets, idle circuit and float valve. you can use a strand of wire from speaker wire to probe the openings in jets.

The only way to properly clean is to remove and disassemble. However if you are just a victim of bad gas, a shot of carb cleaner down the fuel line will remove fuel that has gelled in the jet. Know if the clog is more serious, drain the carb bowl, and fuel tank. Pour some Chevron "TECRON" directly into the carb, mix a Shock Treatment ( about a third of cup in one gallon of gas)and put in tank. Start the bike just enough to **** into jets, and let sit overnight.Drain the carb bowls and restart the bike. let it idle or drive it slowly for five minutes. this will usually take care of minor clogs.When bike is idling or running better drive to gas station and fill the tank. Drive the shock treatment through the bike(100 plus miles), this should clean up the entire engine. If the techron does not clean the carbs in 5 to 10 minutes of running time, you will have to take them apart to clean them properly. Use Chevron "Techron" not Chevron "Fuel sytem cleaner with Techron". Techron is more concentrated.

Your carbs are dirty and need to be cleaned. A tank of bad gas or old gas can gel up the jets. You buy gas, drive home, and when you get there the bike stops idling. Light gelling can be fixed by draining the carbs (screw on bottom of bowl), pulling the fuel line off the tank, and squirting some motorcycle carburetor cleaner down the fuel line. Plug the fuel line back in turn on the gas and start up the bike. If that doesn't work, using the same procedure buy some Chevron Techron fuels system cleaner, pour directly into the carbs and let sit over night (also drain tank and heavily treat one gallon of gas and put in tank) Fire up bike and let run ,idle, slow drive for 5 to ten minutes. This will usually get cycle idling without disassembling carbs. If it still wont idle you will have to take off the carbs, disassemble and clean blowing through the jets and jet passageways.

clean air filter, and clean carb with spray cleaner.make sure carb choke is free to move.look for vacuum lines off or stopped up. if trash is in the carb just draining it might not be enough,you may need to clean the jets or float needle valves too.

i would have a look at the float needle and make sure its not sticking could cause the overflow of fuel

hi yes the one on the float also check the float height if it is adjustable you will tell if were the float needle sits there is a metal tab.if youn are getting white smoke you maye be burning oil make sure you havnt over filled the oil.i know this may sound sillyy but are you sure you never put diesel in the tank by mistake coz that will make it smoke a lot if the fuel feels oily and dosnt smell like petrol drain it out clean the carb agian and replace the spark plug

sounds like the float is not working properly , could also be the jet. would be a good idea to buy a carb kit, not very expensive and save a lot of grief.

yes gas will deteriate and leave varnish deposits clogging carberator and layer in tank has yellowish color flush lines with brake cleaner and spray carb with spray carb cleaner and spray inside fuel inlet on carb let sit about 15 minutes redo and sit about 4 times clean fuel tank with brake cleaner (with tank off) until clean, refill with fresh gas and add about table spoon carb cleaner per quart of gas and let in run for awhile. when storing for any period of time add fuel stabilizer to avoid this issue in future

sounds like a fuel problem in the gas tank or carb. If bad gas or debris gets into the carb fuel bowl, this will fowl up or clog the jets after you start to run your engine. you need to remove your carb and clean the fuel bowl and jets. use a jet carb cleaner to do this. without knowing what type of engine, make sure all ur jets are clean. use a fine wire to insure they are clean and put te carb back together. also check and clean the fuel valve area of the carb, the fuel line, and the fuel tank. never use last years gas and always run your equipment out of gas before you store it for the winter.

clean the carbs!!! 4 years they're gunked up for sure. clean the jets and the float valves and all the fuel and air circuits