50 Cub Demo

Farmallb · Nov 29, 2011

I had the carb overhauled. Started it up. Still ran kinda rappy. Had to keep playing with the choke for awhile till it got warm. Pulled the plug wires. The plug nearest the radiator #1? when I pulled it, nothing happened. Put the wire back on . Just for a moment ,after a moment, it ran good for a few seconds, Pulled the wire again. Checked the wire for spark. Good spark. Started to put it back when i noticed that it ran better with the spark being drawin a distance to the plug. Barely rested the plug wire on the plug and it ran fine. Any thoughts??

rustyfarmall · Nov 29, 2011

That spark plug is partially fouled. Might be time to just replace all 4.

David Lampman · Nov 30, 2011

I agree that it could be a fouled plug. But I've also seen that happen on older Europian cars when the part of the points arm that rides on the cam wore down. You needed to lube the points cam or it would happen soon after a tune up. So check your points for ware and gap. If this is the case then a new set of points is in order. Or at least a cleaning and regap.
HTH
Dave

50 Cub Demo

Farmallb

Well-known Member

rustyfarmall

Well-known Member

David Lampman

Member

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