1949 M Revs Up

gold1456 · May 14, 2011

I have a 49 m that when i start it up it revs way up any help.Thanks

rustyfarmall · May 14, 2011

(quoted from post at 13:07:37 05/14/11) I have a 49 m that when i start it up it revs way up any help.Thanks

Broken spring in the governor, or the tab on the governor shaft is not engaged in the slot in the throttle shaft of the carburetor.

AG in IN · May 14, 2011

What rustyfarmall said plus there is a small grooved pin that holds the lever in the front to the shaft that goes between the gov. and carb. that can break too. The pin may not even look broken, but see if you can twist the lever arm on the end of that shaft.

I fixed a 400 last year and that was the problem, it would run idle or wide open. Pin looked just fine until I took the gov. tube out and could twist the lever on the shaft.

AG

pete 23 · May 14, 2011

Plus, if it won't idle down at all, may have screw loose or out of butterfly in carburetor.

AG in IN · May 15, 2011

A real long shot but if the thrust bearing in the governor fell apart, it could cause this too.

AG

1949 M Revs Up

gold1456

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rustyfarmall

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AG in IN

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pete 23

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AG in IN

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