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I just joined the forum and plan on sharing what I've learned in maintaining my Lawn Boy 10323 I bought new back in 2003. Two weeks ago the engine became completely trashed when the connecting rod cap came loose, my son was cutting when it happened and told me about a 'weird' noise. Before the incident it was surging, refusing to idle down, and over speeding noticeably the weekend before. I was having trouble with the vane spring, carb adjustment, cable adjustment, mower was a complete oil/grass mess, etc. My wife was trying to convince me 'it's time' to get a new mower. I wasn't convinced, the 10323 is light, powerful, easy to maintain, easy to maneuver, and easy to start (most of the time). After borrowing a neighbor's fairly new $549 6.75 hp 4 cycle mower my son and I dearly missed the 2 cycle Lawn Boy and decided to fix and keep it. It needed a new short block, new blade, new vane spring, and while at it I went through everything thoroughly. I did the carb mod and drilled the pilot jet out with a #77 and the main with a #68 and it runs fine with a great idle and no surge. It hums nice when it hits thick grass but not as smooth running under no load. One thing I noticed is it consumes more fuel than before.

I went through the drive system and put a new belt on, (Dayco belt from Advanced Auto), re-greased the gearbox and so forth and noticed the main bearing on top the gearbox is worn pretty bad. The pulley is rubbing against the guard above it when engaged. Curious if anybody has ever changed this bearing, I have a 6 inch vice where I can press it out and change it. I've seen the bearing for about $8.

I love my little green Lawn Boy, my neighbor that loaned me a mower the prior weekend made the comment from a distance after cutting the yard and said "I see you got a new mower" I replied "no, same one, better than ever." I put my wife on the spot standing next to me and said "she can even start it now." Eating my own words I turned to my wife said "go head, try it". She gave it one light pull on the first try and it started right up.....sweet.

Welcome to the L.B. forum. I'm not sure if anybody has priced it out, but since all parts for the 10323 are still available from LawnBoy, technically, you could build a new one with all the parts needed. Not sure what it would cost, but I believe the 10323 was around 299.00 new.

Jeff

jp1961 said:

Welcome to the L.B. forum. I'm not sure if anybody has priced it out, but since all parts for the 10323 are still available from LawnBoy, technically, you could build a new one with all the parts needed. Not sure what it would cost, but I believe the 10323 was around 299.00 new.

Jeff

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It was discontinued from being stocked at Lowes back then when I bought it, picked up the last one on display and paid around $359 from what I remember.

short block is 100.00 or so, should be able to find a donor mower for around 0 to 50. 150.00 for pretty much new LB is doable as long as you can handle the mechanics which are very basic, many youtube videos to walk you through the procedures.

DuraFLB said:

I just joined the forum and plan on sharing what I've learned in maintaining my Lawn Boy 10323 I bought new back in 2003. Two weeks ago the engine became completely trashed when the connecting rod cap came loose, my son was cutting when it happened and told me about a 'weird' noise. Before the incident it was surging, refusing to idle down, and over speeding noticeably the weekend before. I was having trouble with the vane spring, carb adjustment, cable adjustment, mower was a complete oil/grass mess, etc. My wife was trying to convince me 'it's time' to get a new mower. I wasn't convinced, the 10323 is light, powerful, easy to maintain, easy to maneuver, and easy to start (most of the time). After borrowing a neighbor's fairly new $549 6.75 hp 4 cycle mower my son and I dearly missed the 2 cycle Lawn Boy and decided to fix and keep it. It needed a new short block, new blade, new vane spring, and while at it I went through everything thoroughly. I did the carb mod and drilled the pilot jet out with a #77 and the main with a #68 and it runs fine with a great idle and no surge. It hums nice when it hits thick grass but not as smooth running under no load. One thing I noticed is it consumes more fuel than before.

I went through the drive system and put a new belt on, (Dayco belt from Advanced Auto), re-greased the gearbox and so forth and noticed the main bearing on top the gearbox is worn pretty bad. The pulley is rubbing against the guard above it when engaged. Curious if anybody has ever changed this bearing, I have a 6 inch vice where I can press it out and change it. I've seen the bearing for about $8.

I love my little green Lawn Boy, my neighbor that loaned me a mower the prior weekend made the comment from a distance after cutting the yard and said "I see you got a new mower" I replied "no, same one, better than ever." I put my wife on the spot standing next to me and said "she can even start it now." Eating my own words I turned to my wife said "go head, try it". She gave it one light pull on the first try and it started right up.....sweet.

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I would change it, miss aligned shaft will take out the gears eventually.

lewb said:

I would change it, miss aligned shaft will take out the gears eventually.

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I am, parts should be in within the next couple days, as a precaution I disconnected the cable for now.