F525 very hard to start
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Thread: F525 very hard to start

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    J3 Driver's Avatar
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    F525 very hard to start

    So my F525 has become very difficult to. Get started. Itís started to back fire through both the muffler and carb when trying to start it. Without it starting. Iím at a loss on where to begin. Valves, carb. What are you alls thoughts. I donít mind spending money but donít want to spend bad money.

    Thanks.

    Keith.


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    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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    johnH123's Avatar
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    I would make sure it has good, consistent spark. Then, re-adjust the carb and make sure its correct, and then move to valves.
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    J3 Driver's Avatar
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    Pulled the carb today. The gaskets were shot between the carb, spacer, and block. Ew ones on order. Hopefully that will help. If not Iíll order a new carb.
    Spark is good and compression is still good. Put my hand against the intake while cranking and the suction was excellent. Hopefully the gaskets might fix it. Going to replace the fuel line and vent line that goes from the carb to the tank as well.




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    keane likes this.
    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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    J3 Driver's Avatar
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    Well this thing is kicking my but. I put new gaskets in last week and it made no difference. So I ordered a new carb. No difference. Still backfires through the muffle and carb.

    So I checked the valves. Both adjusted perfectly. .006. Spun he engine by hand and they work normally. Exhaust valve is also acting as compression release as it should.

    Then checked the compression. When cranking the engine I get 80 PSI. So thatís good.

    Then pulled the flywheel to check and make sure the timing is right. Everything looks perfectly normal.

    Fuel pump is pumping fuel.

    So I have spark, compression, and fuel but the darn thing wonít run.

    Time to bug the techs tomorrow at the dealer. One guy says he hates working on them. Iíll talk to him. Hopeful,y if I threaten to bring it in heíll give me some other things to check.

    If not it was a great mower while it lasted. Iíve had it for about 12 years and put 300 hours on it.

    Maybe a F725 to replace it. Or a F935.
    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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    J3 Driver's Avatar
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    Weíre getting closer to fixing this thing.




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    BigJim55 likes this.
    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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    J3 Driver's Avatar
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    Well I think I have it. Yesterday when I was putting it back together I flooded it and thought now whatís not working. By since I suspected that it was flooded I let it sit over night.

    This morning I went out and this is what I was greeted with.
    https://youtu.be/o7ED5Ui7hfY

    The coil really surprised me being bad. When Iíd pull the plug and ground it out and crank the engine the spark plug looked like it was sparking good. So I never suspected it. Guess it wasnít quite good enough.

    Finally. Now to fix a few simple things (a wire terminal and seat) and my son will be back in the mowing business. Good think to as we got over three inches of rain yesterday.

    Neighbor has one of these for sale. Maybe Iíll add it to the fleet. It needs some work too. If so Iíll invest in a technical manual. :yes:


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    Jeff R. and firemachine69 like this.
    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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    J3 Driver's Avatar
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    Well it wasnít fixed. Kept back firing through the carb.

    So an ignition igniter was order and replaced.

    Finally. Itís fixed. Fingers crossed. Now my son can mow until his heart is content.




    Sent from my iPhone using Tapatalk Pro
    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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    Quote Originally Posted by J3 Driver View Post
    Well it wasnít fixed. Kept back firing through the carb.

    So an ignition igniter was order and replaced.

    Finally. Itís fixed. Fingers crossed. Now my son can mow until his heart is content.




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    So J3 Driver. So everything still working fine with new coil and igniter?

    Cheers!

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    J3 Driver's Avatar
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    Yes it is.

    Now if I can figure out why the deck belt keeps popping off. Itís always something.


    Sent from my iPhone using Tapatalk Pro
    1998 955, 70A Loader, 54 Blade, 72 Deck
    1995 F525
    1957 Farmall Cub - Technically belongs to my son.

    If it ain't broke, You're not trying. - Red Green

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