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Re: Need help ASAP! 400 won't start at state fair


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Posted by Baelee05 on August 08, 2014 at 10:26:55 from (12.192.13.220):

In Reply to: Need help ASAP! 400 won't start at state fair posted by SW EM on August 07, 2014 at 20:21:18:

The first thing you need to do is charge your battery or bring a fresh battery in and swap it out. Then you can determine if you have any spark and how strong it is. In the meantime, shut off the gas at the tank and take the plug out of the bottom of the carb. If it was feasible I would even pull your spark plugs and let them dry out or change them. While you have them out turn the engine over. This can help dry the engine out if it is really flooded bad. After you get a fresh battery installed or your other one charged, and you have the spark plugs in and the plug in the carb you can start diagnosing.

Leave the gas shut off and pull the dist cap and rotor so you can watch the points open and close when cranking. If you see a nice blue arc between the points you are good there. If you have spark at the points pull a spark plug off and leave the wire attached while grounding it to the tractor. Turn the motor over and see if you have spark at the plug. If you are good to go there move onto fuel. Turn the fuel on for a few seconds to get some gas into the carb. Crank the engine and see if it fires. If it starts turn the gas back on about one turn and see how it runs. You could have a float that is hanging up or has a hole in it. One other thing to check since it has been sitting exposed to the public. Make sure some moron didn"t move the plug wires around. Check the firing order and go thru it to make sure the wire are where they should be. If you have spark and you have fuel it has to run! If the float is hanging up causing it to flood just when it sits make sure you turn the fuel off. If you don"t have spark at one place or the other you are going to have to start looking at points, condensor, or coil. Good luck!


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