07 ranger 700 efi cuts out mid throttle

[riddler227x]

what i have is a issue with a 07 ranger 700 efi.what it is doing is at half throttle it cuts out,has a flat spot in acceleration etc.however at full throttle it runs fine.been to dealer 4 times at a 2000.00 expense and still the same thing.have changed throttle body,wires ,filters, and fuel pump twice any suggestions.thought i would attempt to repair myself..please help.

[Slacker]

When I am trying to beat a problem like this I try to start with the basic, cheap and easy. Did they inspect the gas in tank? Mid throttle stumbling is something I see often on my swamp bike when I get water in the tank. If you fill fom a gas can regularly you will get water in the gas tank over time. A half bottle of the wifes rubbing alcohol will break it out. Did they replace the throttle cable? The 700s are known to break the little steel 90 where it enters the throttle body. Mine did and it caused low idle and mid throttle hesitation. I would think that the dealer checked these things before throwing parts at it, but one never knows. I'm kind of surprised that they felt right about hitting you with a 2000 bill without fixing it.