I bought this machine and it is in perfect condition but was not running at the time we purchased (used).
First, we got the machine running by spraying carb cleaner into the carb and it cranked right up, we also added fuel directly to the carb. It ran for a few seconds then died. Next, we made sure fuel was being delivered to the carb by unplugging the feed line and sure enough, gas comes pouring out while turning the key which tells me the carb is getting fuel.
We now have replaced the carb and are still having the same issue. Fuel pump is also brand new.
So I have replaced the fuel pump and carb, machine just will not start... What else could it be? Is there anything that may have to do with the choke perhaps? Anything electrical?
Welcome to MLMF lawnbizzz. That has to be pretty frustrating.
You said you disconnected the fuel line, and it ran from the gas tank. I'm going to guess the line was between the fuel pump and the carb, and when you turned the key, it pumped gas.
Have you checked the bowl on the carb? Usually there is a screw or valve of some kind at the bottom of the carb bowl. If nothing comes out when you open that bowl drain, then the gas isn't getting to the carb.
If there is, then there may be a blockage in the carb itself.
Have you checked the spark plugs to see if they are wet as well? If they're dry, then the fuel isn't getting from the carb into the cylinder(s). Perhaps the float is stuck.
You should also check the operation of the choke to see that it is opening and closing as it should.
Hope that helps some, and I'm sure others will offer suggestions as well.
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I don't think it would be a choke problem as it should continue running after starting it on a prime of gas or carb cleaner. Is there an electric fuel solenoid on the bottom of your carb? If so, check that you are getting 12 volts to the solenoid and can hear or feel it click when you turn the ignition key to the on position.
Thanks a lot guys... I will bust out the mower again tomorrow but for now can someone please explain the function of the electrical wire that comes out of the bottom of the carb? I will test voltage tomorrow but WHAT is that wire for and if indeed it is not getting 12v at the solenoid, what should I do if its not getting 12 volts? Replace solenoid? Can I get this part at NAPA or do I have to get it from JD or Kohler?
The wire goes to an electronic solenoid that when you shut your ignition off it will immediately shut the flow of fuel off to help prevent that loud backfire when shut the mower off. You should hear a little click from it when you turn the power off and on. If you have 12v at the solenoid when the ignition is on and the solenoid does not click off and on it may be stuck with some crud or shot. I've also seen the tip rust completely off. Not a hardware store item, but a mower shop or on line item.
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