I have 3 Lawnboys that originally came with Tecumseh engines that are now powered by a Kawasaki and the other two have Briggs OHV engines from newer Husqvarna mowers.

I installed Tecumseh carbs on the Briggs garbage just to get them to run right.

Thank you guys, I think you answered my question well enough. Thinking about putting a newer B/S OHV off my 06 AYP self-propelled mower on my old 80"s self-propelled Snapper. If the shafts diameter & Key is in the right specs like above I'll just do it. The engine mounting bolts are same I already see. If it works, I'll sell my AYP with old engine and quit worrying about its rearend going south. I never knew how simple engineered old snappers were until I was given one a few yrs ago. Hands down, the best designed self-propelled mowers for a poor boy to own. Engine is tired though. FYI: per snappers operating manual, it takes 4oz of "00" grease to fill their rearend from empty as its thicker and wont leak out like thinner 90wt or others. Snapper just states "00" grease. Cheapest I find it at is TSC farm stores for $4.99 a qt. and its thick until heated/mixed up then thins out. Thanks again!!

They call it - Super S Cotton Picker Spindle Grease 00

Update one year later - all is well. Mower with new engine usually starts on the first pull. The only thing that is not quite right is the throttle cable. The throttle on the new engine is on the opposite side from the old one, so the old cable was not long enough. I got a new cable off EBay, but the action is reversed - what shows as fast on the control housing is actually slow and vice versa. No problem until my wife tried to use it and had trouble starting it. She eventually figured it out and got the mowing done. She did complain about the effort required to push the mower around, however. When I asked her if she had used the self-propelled feature, the answer was "Huh?" Good for her - Arnold Schwartzeneger would have had trouble pushing that beast around without the power assist!

Well, it seems plain that good old American ingenuity has saved the day for you all! Heck, i fixed self-propelled mowers when instruction books weren't available! Being that i am now aged and gray, I'm just going to "copy the mail", and allow you young "Whipper-snappers do the fixin, while i sit back and hold my 85 year old girl friends hand! Still interesting!! RJ

Fritz' if you want to change that throttle just for fun, go get some sticker paper from Walmart for your printer and you can make a label for it.

Get the paper, then just type how you want a sticker to look or say in an email and email it to yourself. Play with the words even if you want..lol

Then put the sticker paper in the printer like you would normal paper and print off the label.

Cut the decal out, spray a few real thin coats of clear coat on top of it and it can be used outside. Stick it on the mower & your done.

Now,you learned how to make any small decal too, very easy to do decals of images too if you can copy, paste or just print them on sticker paper.

Sticker papers not real cheap though and you can go to Ebay there's people who make up any decal cheap too.

And' what a stud you are RJ, glad to see your kick'n back with the lady's...lol

I'd also like to thank your generation for making all our old bullet proof & repairable products we all still love today. All that's roll'n off assembly lines today is throw away junk. Well' all except Toyota/Lexus anyway and thats why they're #1 now. Man oh' man how things have really changed...Thank you guys for everything!

In reference to the stud--just remember-ya can't push a wagon up a hill, using a rope! Think about that!

lol...RustyJ14, Took me two seconds to understand that one...

Remember' what women always say, Its the thought that counts......lol

Good to hear from you Rusty J ! Internet lawn mower fixing hasn't been the same without you. A lady is a great reason to be scarce though.

How can i discourage a woodpecker from eating my house? The house has aluminum siding. Maybe he'll learn that after his beak wears down. Don't want to shoot at him-house will leak! No rock throwing--a busted window is sure to evolve shortly. Moving is out. Age will be a deterrent much later-hopefully.

Oh, now he moved around to the back! GRRR!! RJ

Guy next door collected most of my oak leaves, and his, too! Saw him out in yard, laying down beside the tractor! Went over to find out if he got run over, or what. He handed me a spring and a plate, small pieces, asked if i knew where they fell off. I was cleaned up and clean work clothes, but i looked at it, couldn't find where they came from. Tomorrow is another day, so i'll fix it then.I have room in my garage. Warm and sunny today-tomorrow is iffy. The mower supply store is run by a lady who knows her stuff, so i'll pick her brain tomorrow, maybe get a print-out sheet. Cheers! Rusty Jones

I hauled home a very large commercial mower for a friend. It didn't run, so i got the job of making it run. It had the vertical shaft type of engine. Weighed a ton! After a week of work in spare time, i finally made it run and drive. (It was the kind the commercial grass mowers use! Had a Jap engine on it. I took it back to the guy, and cautioned him not to allow his wife to even attempt to use it! Some time later, i saw the guy and asked if it was still running. He allowed it might be-seems his wife got curious one day, messed around with it, it started, and headed for the woods and a cliff back behind their house, and whilst going thru the middle of their and the nabors gardens, it took out part of their hedges! H e said the machine was still sitting down in the crick, sulking, and waiting for somebody to come down and rescue it! Might still be there, to this day! That was about ten years ago! RJ