FD731V alternating dead cylinder

ropost

Forum Newbie
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Nov 7, 2017
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Scag w/ 900 hrs
Engaging the mower kills it.
Running on only 1 cylinder- sometimes right, sometimes left.
Constant fire to both sides.
One side appears to be getting the majority of the fuel.
Spraying carb cleaner down the throat of the dead side clears up the problem.
At full throttle should raw gas be bubbling, not spraying, through thru the lower brass jets in ea. throat?
The dead cylinder has noticeably less of this bubbling gas feeding it.
Removed carb and dropped bowl. Clean innards. Blew through all the obvious orifices.
Problem persists.
At the end of my know how.
Chris
 

bertsmobile1

Lawn Royalty
Joined
Nov 29, 2014
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Usually a problem like this is electrical.
To verify, remove the blower housing and remove both of the thin kill wires off the ignition coils.
Then check that fuel cut off solenoid is working properly because it is the only way to stop the engine once those kill wires are disconnected.
Replace the blower housing and go do a test mow.
If all is well then replace the wire that connects the two coils with a new one.
 
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