MF-65 tractor carb issues

Rkh · Nov 24, 2012

my gas mf-65 revs up & down when engine is at operating temp & governor opened up all the way. what is the proper way to adjust carb?

BCnT · Nov 24, 2012

if engine doesnt have a load on it,that surging in normal.
carb should have 3 adjustments...idle speed...idle mixture...and power mixture [not sure of MF's part name] anyhow,the power mixture affects the top end fuel.
first of all,get your idle mix rite so tractor runs good at idle...then set your idle speed...last,adjust power mix to run smooth at about 3/4 throttle.

Rkh · Nov 25, 2012

do you adjust idle mixture & power mixture cold, or hot engine?

BCnT · Nov 25, 2012

operating temp like you said above.

rustyfarmall · Nov 25, 2012

(quoted from post at 15:02:12 11/24/12) my gas mf-65 revs up & down when engine is at operating temp & governor opened up all the way. what is the proper way to adjust carb?

Might not be the carburetor. Might be the govenor.

Rkh · Nov 26, 2012

explain if it is the governor

rustyfarmall · Nov 26, 2012

(quoted from post at 14:36:38 11/26/12) explain if it is the governor

The governor is the device that maintains the engine rpms at whatever level is determined by the throttle setting. A worn out or otherwise defective governor will cause the very symptoms you described.

MF-65 tractor carb issues

Rkh

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BCnT

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Rkh

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rustyfarmall

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Rkh

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rustyfarmall

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