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John Deere rx75

10 years ago

Last year my neighbor gave me his rx75 and I used it for the season it ran great besides revers not working but any way I put it away for the winter and I just tried starting and it cranks but doesn't fire it has spark and the carburetor is clean what do I do

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Comments (8)

mownie
10 years ago
***"the carburetor is clean"***
Does that mean you have taken the carburetor apart and cleaned thoroughly or does that mean that the outside of the carb looks "clean"?
To check whether the engine wants to run but is not "getting fuel" you can dribble a spoon or two of gasoline into the throat of the carb, or give it a shot of spray carb cleaner into the carb and see it it wants to run briefly on that amount of fuel.
If it wants to run when you do that, your carb is not so clean (inside) after all.
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redneck99
Original Author
10 years ago
Yes I took apart the carburetor and cleaned everything with carb cleaner I put it back on and even with starting fluid no firering yet the spark plug is wet so I know it's getting fuel
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Hello, folks. I hate to revive this dead horse, but I'm having the same problem described in this thread -- again. The starter on my John Deere RX-75 is refusing to turn over again, unless I happen to catch it in the right mood. It fires off fine when I walk by and flip the key in the garage. But sometimes it doesn't after I've turned off the motor -- usually with half of the yard still to cut. I've fiddled with the shift lever to make sure it's in neutral, and I've checked all the wiring that I can see. Any other ideas? When this happened last year, I tried some of the tricks mentioned here. I thought one of them must have worked, because the mower straightened up and cranked right. Last summer I took the mower to a John Deere dealer after this happened. It cranked like a new mower in the shop, of course, so I figured (hoped) they had cleared up whatever the problem was. No such luck.
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It could be that there is poor flow of fuel to the carb itself. It runs itself out of fuel in the bowl and dies. I would check that the fuel shut off is open and good flow first. Fuel pump on these? Try it w/ the fuel cap loose to ensure it is venting. A can of carb spray would be useful. If you go this far and still not running, a squirt down the throat of the carb as it is dying would tell you if you still have spark anyways and would indicate you need to go further w/ the fuel system. There could be other issues pertaining to ignition as well. Let us know what you learn.
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mownie
10 years ago
OK, now we are getting somewhere. It seems to have no spark.
What engine is on this mower? Look on the engine and find a model number and type number if Briggs.
Model and spec number if Kohler.
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redneck99
Original Author
10 years ago
My mower is actually at my house upstate and I won't be there till Friday but I am getting spark and i know it is a 9 hp Briggs
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mownie
10 years ago
Do you know whether the flywheel has ever been removed from the engine, either by you or someone else before you got it? If it has compression, and it has spark, and it is getting fuel, a sheared flywheel key may be why it does not run.
Most often a flywheel key shears after the flywheel has been removed and replaced with insufficient torque to the flywheel retention nut or bolt.
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redneck99
Original Author
10 years ago
I'm not sure but I can check tomorrow
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bill_kapaun
10 years ago
According to this website, it's a Kawasaki??

http://www.smallenginewarehouse.com/Repower-Old-Equipment/John-Deere-RX75-Category/
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redneck99
Original Author
10 years ago
Where would the model number be
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