2008 Artic Cat Efi 700
Need some help with our 2008 700 EFI 4x4. When we go to start it the thing takes about to finally start. Now it will idle ok, but 50/50 if you move the throttle at all it totally dies. Occasionally the dash even goes blank while throttle bogs engine out. I really need help figuring this thing out. I've removed fuel tank and cleaned it, replaced fuel filter. Replaced spark plug. Also, if at idle and Rev engine up high it back fires the entire time. Is this normal?