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Stalls at idle and from throttle return

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Recently rebuilt 2013 rmz 450. From the wrist pin and up all brand new. Everything to spec in the book, valve clearance, torque spec and pattern etc. got it all put back together. Fresh fluids. Only got it to start a handful of times and could not keep it running. Runs 10 secs give or take then stalls. Thoughts?

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Check the tip over sensor above the engine under fuel tank. I'm betting it's upside down

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Check the tip over sensor above the engine under fuel tank. I'm betting it's upside down

No sensors were removed other than the ect sensor on the cylinder head. Could it get moved by removing the tank?

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It's held in place with a rubber grommet. Maybe you moved it but never unplugged. It sits right above the valve cover and if you did the top end in the frame it would have been in the way

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IMG_0544.thumb.PNG.88233076a9eac4a13ea0faca18feb106.PNGhere is what it looks like.

Ahhhh, little rascal. I did move it but I'm pretty sure I have it pointing up. I'll check that when I get home. Thanks man!!

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