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Auto-Doc's, thanks for the input. Yeah, both seals are the same, I've got 2 so 1 will be a spare. Also got an exhaust gasket coming as the existing one tore, a bit of high temp RTV seems to have done the trick, it ran great earlier today.

Update on this one. I got 2 crank seals for my mower. Yesterday I did the bottom seal as that was an obvious issue. Had to remove engine from deck along with mounting plate (my term) on engine. The seal was loose so easy to pop it out, greased up new one after cleaning the shaft and things...

Rivets, thanks for the manal, lots of good info here. I am not sure this F engine was only produced for 1 year, but whatever, she runs and mows well.

I haven't been here much as my Lawn Boy at around 37 years old continues to run well, that is, until the last week or 2 that is. Seriously, this is only like the 3rd issue I've had with this mower in all these years. I noticed it was becoming harder to start, taking 6 - 8 - 10 pulls instead of...

I'll probably hold off as this one hasn't run in a while and will no doubt have issues.

Hey guys, saw a 8237 for sale pretty cheap, figuring it needs work. Not sure if this is a "dog drive" or not. Its got the steel grooved rollers that push on the rear wheels. My Dad had one of these years back, but I never used it. This drive set up work OK on hills and maybe damp grass (got...

I've used Tanaka 2 stroke synthetic for years, used to use Opti, but Tanaka is available in a more convenient jug. Works great in my LB

Yep, Cincinnati area. Thanks for the info, some research suggests I'd prefer the 3 speed set up. Also, looking to keep search local.

FuzzyDriver, I'm on SW Ohio. How good are the self propelled LB's? Do they work well? Primarily thinking of hill in back yard, I'm not getting any younger. My push mower is fine, just thinking this might make my life a bit easier, but only if they reliably work well.

Thinking of trying to score a self propelled Lawn Boy, must be 2 stroke, for the hill in the back yard. Are the drive units all the same over the years, all belt driven? Are they reliable with some maintenance, I know they are RWD, my Dad had one years ago, but he killed the mower some how...

Yep, inductive pick up on plug wire.

I just sort of went thru this on my mower as the spring got accidently knocked off while mowing under a spruce tree. I would just set it at say 4 clicks from fastest setting, get it to run, then use tach of some sort to measure RPM. Then turn faster or slower to get to correct speed. Manual...

FuzzyDriver, thanks for the help, it took 2 clicks of the wheel to slow it down and get it sounding just like it used to. Used my ancient dwell tach and on full throttle (which i never really run) it reads 6500 rpm, which works out to 3250. Half throttle reads 5400 or really 2700 rpm. My LB...

Thanks, just checked my service manual, it states 3000 - 3300 rpm at normal setting, whatever normal is. In the next day or so, i should be able to adjust it to say 3000 at fast or max setting (can't recall what is states on throttle lever at the moment). Thanks again, think I got it.

yes, i'm thinking it is too fast. I simply turn the plastic wheel under the governor vane to adjust, correct?

Interessting, I did exactly that with my old Craftsman dwell tach from many years ago, it pegged it at 6000 rpm. i'll need to look, but don't think it goes higher. Anyhow my mower is spinning at 3000 rpm minimum.

Yeah, got lucky here, mowed back yard before the rain, seemed to run well (as always). Would like to check rpm, but don't have a tach, going by sound good enough?

Ignore, as I found where the spring hooked up to. She started on 2nd pull!

Hi, Just joined forum as I've never had any issues with my 2 stroke Lawn Boy in 30+ years. I've got as S21ZPN (S/N G263C0763) that I was using this morning to mow. I am original owner of this machine and love it! Unfortunately, I pushed it under a mostly dead spruce and a short branch must...