2011 ktm250 sxf wont start

SOURCE: i av a ktm250 04 sx it only runs for 2t3mins then

http://justkdx.dirtrider.net/floatlevel.html

check the float needle its a common problem.

SOURCE: When I stall my ktm 450 sxf it wont fire again

Your gonna seize your engine if you keep stalling it, very bad. Also its a switch that incase you crash and the engine stalls it will cut power to the coils located under the tank, to prevent any kind of electrical fire. just don't keep stallin it and let off the clutch just a little slower.

SOURCE: 2011, 250 sxf. starts first

The main box fuses and relays needs to be inspected for short and wiring's needs to be inspected.Also injectors needs to be tested , may be injectors are worn or getting blocked. agree injectors and other electrical parts already, tested, but get it tested by meter.Also get compression test for each cylinder.Also test flow of fuel, is the fuel flow getting low after start up.If the pressure is low , then fuel will not reach to engine as required and engine will stop, this will cause bike to stop.--------- Getting this possibilities checked will help.Thanks.Helpmech.