how do I turn fuel injection pump up on my tractor?

[diesel man]

I have a 2008 John deere 5203 tractor and want a little more power but I don't know how to turn the pump up on it. Therefore if someone could explain that to me that would be great. Thank you

 

[beenthere]

:welcome:
Have you talked to the diesel mechanic at your dealer? I'm sure he can help.

Personally I wouldn't do it to my tractor.

 

[AKfish]

Still got warranty? You won't... after you "juice" the pump!

AKfish

 

[jd110]

Fuel delivery on these pumps are not externally adjustable. It is adjusted internally.

 

[jenkinsph]

Fuel delivery on these pumps are not externally adjustable. It is adjusted internally.

I wonder why!:laughing::laughing: