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Discussion Starter #1
So I got the 1965 7254 running this afternoon. It didn't have a plug, so I pulled one from another machine. It doesn't appear to be priming and it wouldn't start on gas alone.

So I gave the carb a short squirt of Quick Start and it fired right up on first pull, and kept running. I expected it to die right away, but it kept going.

The kill switch doesnt work (it was missing, so I pulled one from another machine, and it still didn't work) so I had to shut it down by putting my hand over the intake.

The under side of the flywheel is rubbing on the dust shield between it and the top of the block. Haven't taken the flywheel off yet. The machine has been partially dismantled in the past...perhaps there's a spacer or something missing from the underside of the flywheel? I just looked at the parts diagram, I don't see any spacer.

If I lift up on the flywheel, there's about 1/16" play vertically. When lifted, the flywheel still rubs on the dust shield

The fuel filter foam puck is also crumbling, it's in the garbage now. Do I really need to buy a replacement part, or can I cut a piece out of some type pf foam? Is there a specific type of foam (I'm sure there is).

The 1965 7254 is the one on the left:


Cheers,
Coop
 

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I'm assuming you mean the air filter, not fuel filter, right?
You can get aftermarket ones from Stens, if a local small engine shop is a Stens distributor, otherwise, just check the local hardware stores, Home Depot, Tractor Supply, or other type of store, and pick one up from a Briggs or Tecumseh and just cut it to size.
The original filter was made of foam rubber, but as you can tell, it got dry and crumbly with age. The new ones are made of polyurethane foam. It's much more durable.

Stens part #100-594 appears to be the one you need. It's been discontinued, but a dealer may have some old stock still on hand.
I just did a quick lookup at www.stens.com
 

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Discussion Starter #3
I'm assuming you mean the air filter, not fuel filter, right?
You can get aftermarket ones from Stens, if a local small engine shop is a Stens distributor, otherwise, just check the local hardware stores, Home Depot, Tractor Supply, or other type of store, and pick one up from a Briggs or Tecumseh and just cut it to size.
The original filter was made of foam rubber, but as you can tell, it got dry and crumbly with age. The new ones are made of polyurethane foam. It's much more durable.

Stens part #100-594 appears to be the one you need. It's been discontinued, but a dealer may have some old stock still on hand.
I just did a quick lookup at www.stens.com
Thanks for that, yes I did mean the air filter.

Might go pull the flywheel soon, today, and check that the shield underneath isn't twisted or something.

Any problems using spacers to lift this up just enough that it doesn't rub? We have very thing spacer-washers available at Home Depot.

Is ~1/16 too much vertical (end) play in the shaft?

Cheers,
Coop
 

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That's probably about half the endplay of a V engine. I'd just leave it alone if it were mine.
 

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Discussion Starter #5 (Edited)
Had the flywheel off and am putting it back together now after spraying some parts cleaner to clean up the mess under the shroud.

I can find aluminum shavings, but can't tell where they're coming from. The flywheel doesn't look marred, nd the dust shield and screws etc. show no signs of coming against anything.

Furthermore, I can't find anything wrong with the on-off switch wiring.

It's amazing how clean this/these thing(s) are under the grime. Even on some of the worst machines, the fuel tanks, that look like bare steel, are rust free under the shroud.

I guess there's no place to put spacers inder the flywheel. I guess i'd need somethng connical. I only snugged the top acorn nut hand tight with a wrench, seems good, perhaps it'll be fine.

I'm curious what the YOKE S 602635 (2) and WEIGHT S 602636 (1) part are for??

Coop
 

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i have the exact mower my great grandfather bought new. for an air filter i just bought the standard rectangular lawn boy filter and trimmed off the edges. its a good thing you got rid of the old filter before it got sucked in like mine, lol.
 

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Discussion Starter #7
its a good thing you got rid of the old filter before it got sucked in like mine, lol.
Yeah, that's what I was concerned about.


The mower did run once, started two additional times, and then I washed the deck. Hasn't started since. Not even w/ starter fluid.
 
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