2013 Z6 starts first try and idle is smooth but when I shift to drive and begin to accelerate it cuts out around 10-12 MPH the engine doesn't die more like the fuel cuts out, have changed the in-line filter but didn't help.
Appreciate any input!

Does it cut out/stall during gentle acceleration or when you stomp on it.

[2015 Z Force 800 53/Trail EPS]

Check the battery voltage and fuel pressure.

Check out the reverse gear sensor (it's on the left side of handbrake lever).
It might be defective and you get the cut-out also on Forward gear not only on reverse (how it is designed).
Normally, you can put that wire to the ground, and have the cut-out totally removed

This is an old question, but I think he must have fixed it and not checked back in. I'm with you on the sensor

I have a 2013 z6-ex CFMoto and every time it hit 15 it bow down then hit 15 and do it again I change the fuel pump still have the same problem what could it be?

It's a limiter keeping you form going faster. Just need to find out why it's active.

http://cfmoto-forum.com/general-discussion/won't-go-over-15-mph/msg31370/#msg31370