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52 M Not Starting

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B

Bemidji 52 M

New User
The initial problem was that when trying to get it to start it would flood out and gas would poor out of the air intake of the carb.

Cleaned and completely rebuilt the carb checked that all the jets were clear and the float measurements were correct and that the float floated and did not bind.

Tried to start it again same problem split the carb on the tractor checked that the float was controlling the needle valve and was not binding. Still would not start and gas coming out of the air intake.

Pulled the carb put air through all the jets again all clear checked the float again measurements were good no binding anywhere I could here the float rattle when assembled.

Put it back on the tractor same problem. Just to make sure pulled a spark plug and there is spark . Looking for any other suggestions or if anybody is in the Bemidji area that would like to earn some money please let me know. Thanks!
 
I start my H by pushing in the clutch (so it does not have to move all that cold grease), closing the choke, giving it a couple cranks with the ignition off. Open the choke, open the throttle 6 or 7 clicks, ignition on, and crank. Usually it fires right away. Then I have to catch it with the choke to keep it from dying.

What are you doing to start your M ?

Greg
 
One thing to check is make sure your aircleaner has fresh, clean oil in it, and that is at the right level.

I ran into a Cub once that was flooding and wouldn't run for a crap. When it did run, it ran VERY rich.

Fiddled with the carb, same result. Pulled the bottom off the air cleaner, and it was so full of crud, it was more like grease than oil. Turned out, it was starving for air......like running with the choke on. Cleaned her up, fresh oil, and it ran like a top.

This may not be your problem, but I would sure check it out.
 
After the tractor sits overnight or a few hours with the gas shut off. Turn the gas on and don"t crank the engine. If gas starts running out of the drip hole or air intake without cranking, there"s still a problem with the carburetor. When you crank those engines and they don"t start, its natural for fuel pulled into the intake to run back out the carburetor when they fail to start. When the ignition system is good it should also start before it floods to bad if you turn the gas off and everything including the plugs dry. Turn fuel bowl valve on one turn and hit the starter immediately. Also if you have a low battery or the starting system is drawling to much it can lower electric power to the coil. Also make sure tractor has spark at the right time. If its off and the ignition unit wasn"t removed the cam timming or ignition unit drive gears may need checked.
 
Common problem for the H and M. Try to start it without the choke and be prepared to close it part way when it begins to die. Once gas starts to drip out the carb, it will not start until you wait a while. With a good battery and no starter problems, with the starter spinning it fast it might start, but not very often. Your problem is too much fuel.
 

So I should just ignore the carb for now and call it good and start to work on the ignition side. It needs a complete rebuild also I was hoping to wait until next summer.

This winter has been good so far with just cold no snow but I cannot imagine this lasting much longer. I need to get this tractor running again. Thanks for all your help and suggestions.
 
Are you sure you're getting gas into the engine. From what you say about removing the plug it should've been wet with all that cranking. You need to hold your hand over the throat of the carburetor while someone makes an attempt to start the engine. There should be good suction on your hand. If there's very little suction that's a sign you have low intake manifold vacuum. Do a compression check and see what the readings are. You may have worn rings and sleeves, valves not seating. You need good compression, fuel and ignition to make it run. When was the last time it ran? Hal
 
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