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X729 Throttle Response

1177 Views 5 Replies 6 Participants Last post by  8086bruce
The throttle on my 2011 X729 with the fuel injected Kawasaki engine does not increase the engine speed until it reaches between one third and half-throttle position. A dealer says this is normal for these tractors. I'm just wondering if other owners experience the same type of throttle response. Other tractors I've owned have had what I would describe as more even or linear response from idle to full speed across the entire range of throttle positions.
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I have an x728, same engine, and I feel like I have a pretty much linear throttle advance through an RPM range from bottom to top. I have never attached a tach to it, but the sound and feel, as well as the speed available makes it seem that way. There are a few other guys on here who have added small electronic tachs to their dash boards, and would provide a more definitive set of metrics than I can.

If you have a digital camera, take a video, capturing the engine sound as you gradually push your throttle through the range. My 2¢, your dealer is looking to avoid addressing your question.
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Your dealers should be able to resolve the problem. If I recall correctly, several folks here had the same problem a few months back and I think it was traced to a loose connection in the throttle cable somewhere.
I have a 2011, X729 and it reacts to throttle change as Jere described.
My X720SE (same engine) acts the same as Jere's as well.
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