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Old 04-11-2012, 06:51 PM   post #1 of 27
so2315
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Default Help resurrect an 10525

A local scrapper had a Lawn Boy 10525 that looked decent in his pile. He gave it to me for free and I took it home to join the 10323 and and 10552 that currently reside in the shed. The 525 has compression, and the obvious I currently have seen is it is missing the fuel line from the tank to the carb, I took the carb off and the tab that the throttle cable goes into was taken off the metal bar and moved s it had one tab behind the end of the metal bar that it slides on. This probably caused the throttle cable to get broke up on the dash where it goes into the lever.
The self propel cable is also broke as is the plastic hook on the bail it goes into. What concerns me and I have no experience with the 3 speed models, is the shift cable for the speeds is intact, but will not move out of 'N', and I don't want to force it. How can I check the transmission to make sure it will work before I start rebuilding the carb?
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Old 04-11-2012, 08:36 PM   post #2 of 27
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Default Re: Help resurrect an 10525

Great find, that is a very good mower once fixed. Pull the belt cover off the machine, disconnect the cable at the transmission and try and move the plastic shifter on the trans with your hands.
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Old 04-11-2012, 10:02 PM   post #3 of 27
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Default Re: Help resurrect an 10525

Took cover off and unhooked the spring. I tried to move the lever but it won't budge. When I roll the machine it feels like it is free wheeling. It sat outside for 1-2 years so I am not sure what I got myself into. The throttle cable and the drive cable were around $50 so this may be one of the reasons why it sat.
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Old 04-12-2012, 03:17 PM   post #4 of 27
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Default Re: Help resurrect an 10525

It could be bound up inside there. You can take them apart fairly easy. Maybe someone can find the link to the parts diagram on there. They are fairly simple. Probably just needs some cleaning and new grease. If it is the shifter cable then I would just leave it be. Mine always resides in 2nd anyway. 3rd is a sprint and 1st is a crawl.

Get some pics up of it. the 10525 is one of my favorites.
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Old 04-12-2012, 06:45 PM   post #5 of 27
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Default Re: Help resurrect an 10525

I've got an ok used throttle cable. It got snagged on something and pulled out at the carb bracket but I pushed it back in and continued using it for the rest of the summer.

Ordered a bunch of parts last fall and decided to just get a new cable and kept the old one as a spare.

I paid $31.60 for the new one ... I'd sell this used one for $5 + shipping.

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Old 04-15-2012, 06:06 PM   post #6 of 27
so2315
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Default Re: Help resurrect an 10525

So I should just open the cover up, and pull the gears out and clean and regrease?
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Old 04-15-2012, 06:46 PM   post #7 of 27
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Default Re: Help resurrect an 10525

Yes. These and all gear boxes need fresh grease from time to time or so many years.
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Old 04-17-2012, 11:00 PM   post #8 of 27
so2315
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Default Re: Help resurrect an 10525

Laid the mower on it's side, took the bolts off the cover, snapping off one in the process. Took the smaller set of three gears out, they move freely. The large set will not budge, and I can see a fork that moves along a shaft and this will not move. I don't want to start banging on it and have looked at the schematic, but can't figure out which way it should move.
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Old 04-23-2012, 03:19 PM   post #9 of 27
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Default Re: Help resurrect an 10525

Well, a quick update on this project I have decided to take on. This mower has sat outside in a junk pile for at least 2-3 years. It had a broken throttle cable, drive cable, plastic tab on the drive bail, and the throttle linkage on top of the air box was all sorts of buggered up.
I ordered new cables (wish I had seen the $5 offer before, but thanks anyway!), new air box backing, some gaskets for the carb to motor and went to work.
I meticulously cleaned the carb and jets. I re-assembled the carb, reattached it and plumbed up some new fuel lines with shut off and filter. I replaced the throttle cable and after a couple of hours of dinking around I was ready to give it a try. On the 2nd pull of the rope..........you guessed it........




















THE ROPE BROKE!
Well, I figured since I have 2 other Duraforce models around, and since I have some ca$h tied into this I can try the rope off of one and see what happens. I did that and there was nothing there. I figured I might as well try the coil since I have the good one apart. I swap it over to the junk Lawn Boy and it came to life on the 2nd pull. Ran great, no surging, seemed loud and noticed the muffler is broke st the base.
So I at least know I have a good short block. It did sound kinda like a wheel running on dry bearings. Not sure what that would be since it is a two stroke. Any ideas?
Also, does anybody have the recoil assembly they would like to sell? I am sure that the recoil is gone since it has no tension left.

Last edited by so2315; 04-23-2012 at 03:28 PM.
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Old 04-23-2012, 03:43 PM   post #10 of 27
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Default Re: Help resurrect an 10525

If the rope just broke, I bet the spring is still ok. Spin the pulley by hand one way and see if it has tension, if not that way, try the other way and see if it recoils back. Then if it does spin the recoil pulley til it is as tight as it can go and then throw a new rope in it and call it a day.

Glad to hear you got it running!
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Old 04-23-2012, 04:41 PM   post #11 of 27
so2315
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Default Re: Help resurrect an 10525

How many spins does it take? I tried probably 50 revolutions each way and felt no tension. Where is the cheapest place to find ignition cools?
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Old 04-24-2012, 10:33 PM   post #12 of 27
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Default Re: Help resurrect an 10525

Well some more good news. I got the shift lever free, seems that the cable was rusted up and the grease is very stiff. What type of grease is needed to repack the gear box?
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Old 04-25-2012, 07:55 AM   post #13 of 27
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Default Re: Help resurrect an 10525

#2 lithium based, basic automotive chassis grease, either regular or synthetic. Clean out the upper case as much as you can along with the cover. Fill the cover level with grease, reattach. You're done.
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Old 04-30-2012, 08:30 PM   post #14 of 27
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Default Re: Help resurrect an 10525

UPDATE
I bought a new recoil assembly and drilled out the rivets and replaced the whole recoil. I also put on a new coil and blade. I was able to free up the transmission. I opened it up and cleaned all of the old grease out. Lubed everything up in there and filled the pan level with new grease. The shift lever is still kind of stiff, but I can move it to the other speeds. I am sure a new cable will fix that but it can wait. I also took the muffler plate off on the bottom and found a loose bolt laying in the gunk. Cleaned that all up and sealed the plate back on with red RV sealant.
I was able to get it started again, but it was difficult to start as compared to when I used my donor coil and rope. A shot of carb cleaner gave it life and it idles just fine. When I push the throttle to fast it will run, then act like it is running out of gas. If I choke it it will pick back up and repeat.
I have another thread on that issue ( http://www.mytractorforum.com/showthread.php?t=236536) and will investigate the needle and seat tomorrow. The price of the parts is right at $100, but the satisfaction of getting something destined for scrap makes up for it.
Once I get the throttle issues worked out I will start on the deck. Alot of paint has flaked off, and the massive amount of carb cleaner I used on removing gunk has taken more off. As most of you know, the repaint will be fairly easy and really complete the project.
Thanks to this forum, it has been a lifeline for me to work on this and rescue a fine machine destined for junk! I will get some pictures up tomorrow.
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Old 04-30-2012, 09:52 PM   post #15 of 27
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Default Re: Help resurrect an 10525

That was the most desired Duraforce mower for a long time. Ive had a few and converted 2 into commercials. Great mowers and worth 3X what you have invested IMHO
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