i have a 1997 250 quadrunner it has low mileage and it only got ridden once or twice a week and put in storage all winter. i got it out and you have to crank it forever to get it to start and when it finally does it wont idle unless you keep hitting the gas. and wont run at low rpm. i removed the carb and cleaned it and replaced about everything in it and still the same thing. would like to get the quadrunner fixed it is a good quad

 

Best to rebuild a carb rather than trying to clean one and still have problems. Plenty of carb kits on ebay. http://www.ebay.com/itm/New-Suzuki-LTF250-LTF250F-LTF250-4WD-1997-1999-Carb-Repair-Kit-12-9906-/330950645492?pt=Motors_ATV_Parts_Accessories&hash=item4d0e3216f4&vxp=mtr"IF" you have installed a kit and still have problems,could be an air leak around the intake manifold/split manifiold causing problems,valves need adjusting,etc