4120 Tach Doesn't exceed 1100 RPM

   / 4120 Tach Doesn't exceed 1100 RPM #1  

Mister C

New member
Joined
Jun 21, 2012
Messages
3
Location
Prairieville, LA
Tractor
John Deere 1026R
Helping a friend. He has a 4120 w/ about 1100 hrs. Purchased w/ 800 hrs. Tach has never operated correctly. Has anyone had a similar experience and if so, how to repair?
 

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