Carb or govenor question

bigramjack · Jan 4, 2009

I have a MF 50 that I bought over a year ago that had been setting up and since I have bought it it has continued to set up. It has a problem with the carb that I would like someone to shead some light on for me to try. You can crank it at the lowest idle speed possible and then when I barely pull back on the throttle just a little it goes to a very high RPM and so high it seems like it might blow up. What could the problem be. I posted this on the Massey Ferguson forum but maybe one of you tractor buffs that work on all brands could help me out. Thanks, Bigramjack

Paul Janke · Jan 4, 2009

A wild guess is that the governor spring is too weak.

Bob · Jan 4, 2009

You posted: "A wild guess is that the governor spring is too weak."

Yup, that'd be a WILD guess alright, as a weak governor spring will make it run TOO slow, and NOT rev up.

Remember, the spring pulls the governor and carburetor butterfly OPEN and the action of the governor WEIGHTS CLOSES it.

Spring problems = DOESN'T rev up.

Weight problems = OVER REVS.

I would suspect the weights are STUCK or BROKEN or the little thrust bearing between the fingers on the wrights and the "fork" has failed or is missing.

bigramjack · Jan 5, 2009

Bob, Where are these weights, fingers and "fork" located? Are they in the carb or the govenor? Thanks, Bigramjack

Bob · Jan 5, 2009

Governor.

Carb or govenor question

bigramjack

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Paul Janke

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Bob

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bigramjack

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Bob

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