New MF4707 revs up slower

   / New MF4707 revs up slower #1  

Modn

Silver Member
Joined
Jun 1, 2008
Messages
151
Location
LaFargeville, NY
Tractor
MF4707 Deluxe Cab
I've owned quite a few tractors, newest one being a 2013 until I purchased this Massey Ferguson 4707. Love the tractor so far, but way different than the New Holland and Kubotas I had before (newer technology) I was **** bent on a Kubota M4, but bought this tractor loaded up for thousands less, obviously not color blind.

The only thing that I noticed right off. If i nail the throttle it doesn't rev nearly as quick as the previous tractor. Dealer told me the newer emissions are responsible for this, any truth to that? It is 25hp more than I've ever had, but the motor isn't a massive jump in liters either. Best way I can compare it is revving my 6.7 diesel pickup versus a 12 liter over the road tractor. Vastly different. Has all the power I need once there, just want to make sure this is normal. Also tried setting the throttle up to 1100 or so rpms. It's a little better, but still. Not looking for drag car response, but something like before in my tractors.
 
   / New MF4707 revs up slower #2  
How long since fuel filter was changed. I'd also advise to check for good fuel flow from tank to inj pump. Also check to be sure fuel tank is venting correctly. Your tractor appears to have similar size liter engine as my Kubota M7040 which engine rpm's accelerates fine.
 

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