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#4479860 - 08/05/17 12:05 PM Old Lawn-Boy 2-stroke...
apwillard1986 Offline


Registered: 07/29/10
Posts: 675
Loc: Manvel, Texas
I posted about possibly acquiring this mower a few weeks ago and got some useful feedback that was much appreciated.

I have since finished my refresh of it. I won't call it a restoration as there are guys out there who really restore these and I am stopping short of chrome plateing and powder coating. My goal was a nice usable machine.

It is a 1981 6300. I went through the engine and found it to be in good shape. No scoring or appreciable wear except the rings. Since everything specd out I just did a very light hone and installed new rings and bearings and buttoned it back up. With the new rings it's making a little north of 110psi cold. I'm happy with that. The rest was a few new parts and a lot of painting, polishing, and buffing. I fixed the damaged shroud with some JB Weld and some mending plates. Some sanding, blending, paint, and new decals and it fixed right up.

This was a really fun little project. I have fixed up a few older Honda mowers and I love them but I have always wanted to mess with a 2-stroke Lawn Boy. When this one found me through a buddy at work I couldn't resist.

[img:center] [/img]
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#4479867 - 08/05/17 12:11 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
OTCW Offline


Registered: 05/07/17
Posts: 49
Loc: Tennessee
Looks like that was a fun project. Nice little mower.
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#4479871 - 08/05/17 12:12 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
Indydriver Offline


Registered: 03/20/11
Posts: 2152
Loc: Indiana
Nice job! And I thought my '96 Gold Series was an antique. Best mower I've ever owned. I wish I could find a new motor for it at a reasonable price but the sellers must think these are collector's items.
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#4479875 - 08/05/17 12:15 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
double vanos Offline


Registered: 08/05/04
Posts: 1884
Loc: 5600 feet elevation, Arizona
Good show old man! Fine work!
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#4479995 - 08/05/17 02:53 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
Nitronoise Offline


Registered: 03/24/10
Posts: 488
Loc: Chicago Suburbs
I have had several old Lawnboys one was 1960 era square top where you pull the rope straight up from the top of the shroud , inherited from the inlaws where my wife would mow 1.5 acres with a push mower in Iowa,,,great machine until she put straight gas into it and fried it , my current project is 2002 6.75 hp gold motor with mulching kit that I found thrown away in an alley near my old house, carb cleaning , fresh gas and a recoil assembly and it starts and runs on the second pull

you cant beat an old lawn boy especially before Toro got a hold of them any day of the week , and I own a toro with the Briggs 6.5 hp GTS

( guaranteed to start) yeah right ,,,,,,,,,,,,,

i will take this machine over the Toro I own any day of the week especially with all of the rain we have had the grass is growing like crazy


Edited by Nitronoise (08/05/17 02:56 PM)
Edit Reason: puncuation
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#4479996 - 08/05/17 02:53 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
It looks GREAT!

Only problem I have ever really fought with Lawn Boys was governor issues.
Oh, and the seal on the lower crank leaking air.
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#4480046 - 08/05/17 04:03 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
Neely97 Offline


Registered: 06/13/06
Posts: 370
Loc: Texas
Outstanding!
My grandfather had one back in the day and it was the best mower ever.
It started and ran like a dream.
Great job on saving a wonderfull machine.
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#4480056 - 08/05/17 04:13 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
HawkeyeScott Offline


Registered: 01/11/07
Posts: 785
Loc: El Oeste
Very cool. Well done!

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#4480088 - 08/05/17 05:06 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
beanoil Offline


Registered: 10/17/04
Posts: 2952
Loc: Midwest, Illinois
OP, great job. Looks like new, gives a nod to the brand.
I had a 90's era 5HP commercial that went against every good thing known about LB. Multiple ignition failures, the carb float stuck frequently and would drain the tank after shutdown, and it eventually had so little compression it would not start. (Yes, I know how to mix 2T fuel, and it always got Mobil MX2T....) Parts simply were not available from established dealers and online sources. It's like LB knew they had a stinker and gave up on supporting it.

I couldn't give the thing away, and finally took it to GoodWill where it sat for a couple months on the floor. So turned me off of LB, I bought a Honda as a replacement, and haven't looked back.
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#4480268 - 08/05/17 09:28 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
xxch4osxx Offline


Registered: 03/11/09
Posts: 2602
Loc: Cedarbrae, Ontario
Nice looking commercial LB! Looks like an F series engine.
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#4481577 - 08/07/17 08:43 AM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
apwillard1986 Offline


Registered: 07/29/10
Posts: 675
Loc: Manvel, Texas
Thanks for all the positive feedback!
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#4482082 - 08/07/17 06:26 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
andyd Offline


Registered: 09/25/04
Posts: 7142
Loc: Marshfield , MA
Find these guys MyTractorForum.com go to the walk behind forum. They are as fanatic about old Lawnboys as we are about oil grin2

PS That mower in running condition is worth between 200-300 bucks. But if I had that commercial, I'd never sell it. What you can buy new in that range is junk. Plenty of parts for these available on the interweb


Edited by andyd (08/07/17 06:30 PM)
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#4482152 - 08/07/17 07:39 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
Silk Offline


Registered: 07/26/03
Posts: 4556
Loc: New Zealand
That looks like what we used to call a Johnson Ironhorse engine. Very simple and practically indestructible. Very early models had bronze bush bearings and needed more oil in the mix, later ones had needle rollers.
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#4482427 - 08/08/17 07:28 AM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
dblshock Offline


Registered: 04/24/07
Posts: 2653
Loc: WI.
I own a '74 self propelled bagger, starts on the first pull...bought it back in '89 and maintaned it.
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#4490326 - 08/16/17 04:21 PM Re: Old Lawn-Boy 2-stroke... [Re: apwillard1986]
AnthemBassMan Offline


Registered: 04/20/15
Posts: 217
Loc: T-County, Ohio
Nice clean commercial LB! Nice job! I was in the market for an older LawnBoy for a while because they cut great and I love 2-strokes. But ended up finding a John Deere 14SB with a 5hp commercial Kawasaki engine. Enjoy using that beast!

L8R,
Matt
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