Tractor starts won't run

Dollarbill!

New User
Have IH 300 utility tractor. Ran well until ran out of gas. Then would start but not continue to run. Have cleaned gas tank and rebuilt the carburator. It
still starts but won't run. Any ideas on what to do next?
 

Remove the drain plug from the carburetor and check for fuel flow. might be the sediment bowl needs cleaned, might be the carburetor float is not adjusted properly OR the float is making contact with the sides of the fuel bowl. Might also be a sticking float valve.
 
There is a screen in the fuel inlet where the fittings attach to the carb. It can easily become plugged with flakes of material washed into an empty fuel system when filled. Been there many times. Jim
 
Do some simple trouble shooting.
#1 check that you have a good blue/white spark that will jump a 1/4 inch gap at the center wire of the cap and at the plug wires.
#2 pull the carb drain plug and make sure you have a good steady flow of gas that will fill a pint jar in less then 3 minutes.
#3 when was the last time you serviced the air cleaner
 
Not likely. The governot keeps speed staedy from idle to full power, but has no effect on it running in that range. Jim
 
Do you still have good spark after it quits? Does pulling the choke a little help it run better? If yes, it is running too lean, the idle circuit could need cleaning, especially if it hunts to maintain speed.
 
Either a sticky needle valve that's not coming down to let fuel into the carb when the float goes down (brand new ones will stick and you have a brand new one in there) until sometime later and then the bowl will fill for your next start and then stick again (one technique to identify this is to start the engine and tap on the side of the carb with a small ball peen hammer-if the engine continues to run, that's your problem) or, you have a partial obstruction somewhere in the fuel line that's keeping fuel from running fast enough to keep the engine running but allowing fuel to trickle into the carb bowl for your next start. I always think of the practical joke someone played one time by stuffing a grease rag into the fuel tank of a big Hobart APU. We'd get that thing fired up and just as we hit the starter (on a Wright-Pat R1820) the APU would die. Every time. Finally figured it out. Not your problem but the same principal. (;>))
 
I have a cub cadet mower that I bought from TSC about 10 years ago. My wife uses it a lot to mow the lawn around the house and along the side of our driveway and the road. She puts about 40 hours a year on it.

Last summer she started complaining that it would randomly quit and then she'd go back a few minutes later and it would start, run for a while and quit again. I somehow determined it was fuel related and ended up replacing all the lines, the filter and the vacuum actuated pump. Each time I thought, "that will fix the problem." None of those fixed the problem. Finally I looked in the fuel tank with a flashlight and you could see debris blocking the fuel outlet at the bottom of the tank. Wished I had looked in there first! Fortunately the replacement parts were cheap! But if I'd checked the fuel outlet first it would have been free.
 
Clean the tank again, debris gets caught behind the baffles in the tank and is difficult to get out. Also clean the screen in the sediment.

Dave.
 

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