Murray Mower needs my help

Here's a place for the group to discuss their other brands of bikes, hobbies, and personal interests not related to Ural & Dnepr Sidecar rigs. But not politics...
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Here's the place to chat about off-topic stuff, hobbies, and other toys you got. No political posts, they will be deleted and the poster warned. We're not always "politically correct", but the Steeds site is apolitical.
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rebelrider
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Re: Murray Mower needs my help

Post by rebelrider » Fri May 28, 2021 10:16 pm

I got distracted this spring by an issue with my trusty old Torro:



Short version of the story is that even though the needle valve seat looked to be in perfect condition, replacing it solved the problem.
Mike
Image2014 Ural M70 "Trogdor"
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Re: Murray Mower needs my help

Post by rebelrider » Mon May 31, 2021 12:22 am

Getting back to the Murray.


Starting to look like a mower again.
Mike
Image2014 Ural M70 "Trogdor"
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Re: Murray Mower needs my help

Post by rebelrider » Wed Jun 02, 2021 1:54 am

Working on the carburetor and other things.



Got enough back together to give it a little test ride. :)
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
1971 Honda SL100

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Re: Murray Mower needs my help

Post by rebelrider » Wed Jun 02, 2021 10:12 pm

Digging into the mower deck. What a mess.



But I did get to use my welder finally, to make my very first weld. :)
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
1971 Honda SL100

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Re: Murray Mower needs my help

Post by rebelrider » Fri Jun 04, 2021 2:14 am

Mower deck is progressing well. The engine still hunts while idling, despite being ultrasonicly cleaned 3 times, and multiple bits replaced. I have a new air/fuel mixture screw and pilot jet on order, so maybe that will help. Runs fine at full throttle though.

In addition to hunting, the engine will also backfire out the exhaust if it's brought from full throttle down to idle quickly. I think both of those things indicate a rich mixture. Although adjusting the air/fuel screw does nothing. That happened to me on a motorcycle once, and replacing the air/fuel screw fixed it.

Anyway, here's the vid:

Mike
Image2014 Ural M70 "Trogdor"
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Re: Murray Mower needs my help

Post by Ragmanxx » Tue Jun 08, 2021 11:01 pm

I love my 18 year old Murray. 18 years old and still running. The old 16 HP Briggs just keeps on running. The Hydromatic still works. The only thing I replaced was a solenoid and blades.
I live in rocky country and have destroyed the the cutting deck many times. I mean I thrashed this. A couple of years ago I junked the deck and use her as a small tractor.
The Briggs and hydro tranny motor have been amazing!
I now use a Cadet for mowing. Works good, but doubt it will last as long as the Murray.
"There's the way it ought to be..... and there's the way it is" (Sgt Barnes)

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Re: Murray Mower needs my help

Post by rebelrider » Wed Jun 09, 2021 9:32 am

I'm thinking this mower will last a while too. Engine and transmission are still working great. Mine's not hydromatic, just a simple trans-axle. When I had it open to un-seize the gear selector, it was immaculate inside.

I've been doing more research, on the engine hunting, and it seems that a lot of people drill their stock pilot jet just a little bigger. I've been thinking that it runs rich. They can't both be true can they? If I still have issues with the new parts, I might try making the old pilot jet bigger.

I got the mower deck reassembled and installed on the mower. Still have a few details to finish, but it's nearly there.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
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Re: Murray Mower needs my help

Post by Snakeoil » Tue Jun 15, 2021 11:53 am

Good therapy project. I got a freebie Sears tractor one day. Took it because I own two identical tractors and was going to use it for parts. But turns out it had the big v-twin engine. Took me about a half hour to pressure w@$# all the mouse condos out from inside the air ducting/fan area. Had it running like a champ. Was really a nice machine so decided to sell it. Got $400 for it.
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Re: Murray Mower needs my help

Post by rebelrider » Sat Jun 19, 2021 8:14 am

Thanks. :)

I took it out mowing today, and had problems with the belts. I haven't had a chance to look yet, but I think the drive belt doesn't have enough tension on it, and something went way wrong with the mower belt. Started smoking under the engine even though the blades were still turning. And my gas tank started leaking again. I'm going to go ahead and replace it since I've "fixed" it twice already.

Other minor issues, but it's gonna be a nice machine once I get all the issues worked out. And a heck of a lot cheaper than buying new.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
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Re: Murray Mower needs my help

Post by rebelrider » Wed Jun 30, 2021 2:28 pm

Got a couple things figured out. I don't know why the mower deck parts failed, but at least I know which ones did.



Finally got some parts in yesterday, so hopefully there will be more progress soon.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
1971 Honda SL100

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Re: Murray Mower needs my help

Post by rebelrider » Fri Jul 30, 2021 6:35 pm

Finally got the mower finished!



Mowed half the lawn, and it didn't break down this time. I guess it's on to the next project now. Or rather back to one of my many unfinished projects, LOL.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
1971 Honda SL100

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Re: Murray Mower needs my help

Post by glebo » Sat Sep 18, 2021 8:12 am

Ya know, with all the man hours and frustration...I'da went and just bought a new one...I don't have the patience for that anymore...except when working on the Ural...a lawnmower....nahhhh
But, hat's off to ya for fixing it..
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Re: Murray Mower needs my help

Post by Peter Pan » Sat Sep 18, 2021 1:10 pm

I've been doing more research, on the engine hunting, and it seems that a lot of people drill their stock pilot jet just a little bigger. I've been thinking that it runs rich. They can't both be true can they? If I still have issues with the new parts, I might try making the old pilot jet bigger
On my branch chipper i get frequently the main jet corroded and the engine starts to run so lean that I need to keep it running with half choke. Each time I get to that point I know that it is again time to use my 30 something year old jet reamers for to return the jet back to its original size. Each time I do that, the first dirt that comes out uses to be green. 1-2-3 start up tries, when the choke is not needed any more and max speed is ok, that will tell me when the diameter is appropriate again. Usually that is when i just get some tiny bit of brass dust out with the reamer.

Important side note: clean well the reamers and store them with some MMO or Ballistol gun oil in the can.
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rebelrider
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Re: Murray Mower needs my help

Post by rebelrider » Sat Sep 18, 2021 11:12 pm

Yeah, It's a good thing I enjoy this kind of thing. New riding mowers are way too rich for me!

I think you're right about the jet. I just wish I could find a spare in case I mess up this one. I have the jet bits though, so I'll probably give it a try this next spring.
Mike
Image2014 Ural M70 "Trogdor"
1987 Honda CMX250C "Rebel"
1979 Puch Moped "Wasp"
1971 Honda SL100

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Re: Murray Mower needs my help

Post by jeffsaline » Sun Sep 19, 2021 10:06 am

In a tough situation you can solder the jet passage and then drill it to the correct size.

Best,

Jeff
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