Bluesriff7
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- Jul 6, 2021
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my friend has got a Mac allister. Push mower with a Briggs and Stratton 500 series
Engine. 158 cc. Eng number. 12 1206 51 11580
He brought it second hand. It would start but was running rough and had black
Smoke coming out of the exhaust.
So i removed the carburettor and cleaned it out and changed the diaphragm
And gasket.
Now it starts ok and runs on full throttle ok but the idle is rough and
Popping.
I done a compression test and got a reading of 70 psi.
Engine. 158 cc. Eng number. 12 1206 51 11580
He brought it second hand. It would start but was running rough and had black
Smoke coming out of the exhaust.
So i removed the carburettor and cleaned it out and changed the diaphragm
And gasket.
Now it starts ok and runs on full throttle ok but the idle is rough and
Popping.
I done a compression test and got a reading of 70 psi.
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