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Fixin' to set fire to Cub

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mgb

08-10-2002 20:32:36




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Everytime I run my Cub for about 15-20 minutes of mowing; the engine all of a sudden begins to surge and in less than a minute it will die. Only cranks again much later when everything is cooled down. Coil was gettin HOT so I changed it.(both 12volt) Didn't help any. Y'all got any ideas?




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Bigdog

08-11-2002 17:32:41




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 Re: fixin' to set fire to Cub in reply to mgb, 08-10-2002 20:32:36  
Don't overlook the possibility of a plugged vent in the fuel tank cap.



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BIG JOHN

08-11-2002 15:27:30




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 Re: fixin' to set fire to Cub in reply to mgb, 08-10-2002 20:32:36  
Many engines will surge in RPM's just as they run out of gas. Next time it shuts down quickly pull the plug from the bottom of the carb and see if you have a full flow of fuel. Once found that I had a tree leaf in the gas tank that would float over the outlet sometimes. Couldn't believe it.



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justin

08-11-2002 08:33:33




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 Re: fixin' to set fire to Cub in reply to mgb, 08-10-2002 20:32:36  
I agree with Don and Ron, you might but highly unlikely but possible you are dealing with a fuel flow problem if that is rruled out,I would keep it simple I am not to familer with the 12v sys/coil and ballist.I would replace cap and wires and then look further if not solved and condensor definetly comes to mind.Now stop with the fire thing and just give her alittle tender loving care and she will last ya another 50 yrs

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Don Young

08-10-2002 21:03:16




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 Re: fixin' to set fire to Cub in reply to mgb, 08-10-2002 20:32:36  
It would help a lot to know what, if anything, has been changed or worked on since it was working right. If nothing, the things that come to mind are point gap too close, condenser developing a short, short in distributor or coil to distributor wire. Another possibility is that your coil needs a ballast resistor which is not present. Some 12v coils do and some don't.



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Ron in Az

08-11-2002 07:02:20




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 Re: Re: fixin' to set fire to Cub in reply to Don Young, 08-10-2002 21:03:16  
Just another thought what about vapor lock (or a fuel restriction) Just my $.02 worth and probly wrong just more food for thought LOL Ron



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