we have a small 11o coolster it ran fine for 2 years now it dies instantly and will restart as soon as you hit the starter button. we have cleaned fuel tank cleaned and removed and changed fuel line and both filters have also cleaned carb and put a new carburator on it we have also changed the cdi and the coil and the spark plug. the new air filter doesnt have the hose to the back of the engine like the one on the old filter we are going to try and rig that up ourselves