My 40 hp mercury will crank but wont stay idleing and it will rev up on its own. It will also stay running after i turn key off. What could be the problem?
1995 2 stroke mercury force. Single carb. Has been rebuilt. Use to run good but now it wont idle, it will only crank up for a second then die unless i give it throttle. . It has new plugs, fuel filter, fuel lines. It started this after new throttle control cable was installed.