Have a JD 7810 PS that seems low on horse power, it has a Motorpal injection pump. It is my understanding that model can't be chipped. What is the procedure to increase power with that pump?
Check for 9 pin round diagnostic port in the cab. Its often hidden under the ashtray. If yours has the plug we can certainly help improve performance witj a software update .
Here is an example http://www.voimaa.com/html5uploader/files/NA-JD-7810-270hp.pdf
What year is your tractor?
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