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post #1 of 6 Old 07-13-2019, 10:49 PM Thread Starter
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John deere hd75

My John deere hd75 hydrostatic walk behind is testing my patience. It was running last week beautifuly! It sat about a week and now it won't start, there is no fuel getting to the carb I realized.
Replaced the fuel pump, fuel line isn't clogged, can blow back into the tank with no restrictions, does not want to blow into the carb, it will fire quick if u put some fuel directly into the carb, the fuel tank does leak fuel if filled above the pick up on the outside of the tank
Im puzzled and looking for some help, Thanks
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post #2 of 6 Old 07-14-2019, 09:04 AM
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Re: John deere hd75

Do you have spark? Roger
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post #3 of 6 Old 07-14-2019, 02:53 PM
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Re: John deere hd75

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Originally Posted by rhenning View Post
Do you have spark? Roger
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Originally Posted by Farmerbubba88 View Post
My John deere hd75 hydrostatic walk behind is testing my patience. It was running last week beautifuly! It sat about a week and now it won't start, there is no fuel getting to the carb I realized.
Replaced the fuel pump, fuel line isn't clogged, can blow back into the tank with no restrictions, does not want to blow into the carb, it will fire quick if u put some fuel directly into the carb, the fuel tank does leak fuel if filled above the pick up on the outside of the tank
Im puzzled and looking for some help, Thanks


You stated that it fires off of gas poured directly in your carburetor. I would try to clean your carburetor. Perhaps a stuck float. I have had floats stick in the closed position before.

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post #4 of 6 Old 07-14-2019, 11:07 PM Thread Starter
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Originally Posted by rhenning View Post
Do you have spark? Roger
Quote:
Originally Posted by Farmerbubba88 View Post
My John deere hd75 hydrostatic walk behind is testing my patience. It was running last week beautifuly! It sat about a week and now it won't start, there is no fuel getting to the carb I realized.
Replaced the fuel pump, fuel line isn't clogged, can blow back into the tank with no restrictions, does not want to blow into the carb, it will fire quick if u put some fuel directly into the carb, the fuel tank does leak fuel if filled above the pick up on the outside of the tank
Im puzzled and looking for some help, Thanks


You stated that it fires off of gas poured directly in your carburetor. I would try to clean your carburetor. Perhaps a stuck float. I have had floats stick in the closed position before.
That's a good idea. Would a stuck float cause all those symptoms but run when gas is put into the carb? Sorry I'm not good at the small engine stuff.
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post #5 of 6 Old 07-15-2019, 01:21 AM
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Re: John deere hd75

I would first check that you are getting fuel to the carb, but putting the end of the fuel line at the carb into a small bucket and trying to start the engine. You should get some fuel out of it fairly quickly.
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post #6 of 6 Old 07-17-2019, 02:27 PM
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Re: John deere hd75

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Originally Posted by Farmerbubba88 View Post
That's a good idea. Would a stuck float cause all those symptoms but run when gas is put into the carb? Sorry I'm not good at the small engine stuff.
If the float is stuck in the closed position, yes. The fuel is drawn up from the bowl into the carb throat. By putting gas into the carb throat, you are bypassing the float and jets.

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