Recent content by elmrfudd

Through my experience, the model/serial number placards of the unit are underneath the unit, so you about have to roll it over to see it. B&S numbers normally stamped on valve cover or blower housing, or in a QR code on a sticker.

I agree. Sounds like moisture in the gas to me.

You said when you got off to move something, that of course, it shut off. When you did that, did you disengage your blades first? If not, you are activating two interlock switches, as opposed to one, which most obviously would be the seat switch. Be sure your blades are disengaged and you're on...

Well, it appears that the problem is licked!!! I installed a new air filter, and it ran smoothly at all speeds with no black smoke. I’m guessing that the fibers in the paper element in the old air filter had gotten wet, causing the engine to “suffocate”, so to speak. Although I can’t prove it, I...

Yep, I already mentioned in my previous post that I also drained the carburetor.

I just pulled the dipstick to smell the oil, and cannot detect any obvious gas smell in the oil. That was my first suspicion when I got the mower home three weeks ago. I’ve changed the oil since then, and the oil level is still dead on the “full” mark on the dipstick when I checked it just now...

In my previous post, I mentioned that the engine started and ran flawlessly, at all speeds, but failed to mention that was with the air filter OFF. Even after reinstalling the tube insert and breather tube, it ran flawlessly, at all speeds. However, when I reinstalled the air filter, the black...

I should also note that the other end of this tube attaches to the cylinder head, and not the engine block. Not sure exactly what that entails and whether I’ll need to remove the entire head to address the issue.

Well, I’m back from vacation, so I started back in on this JD tractor again. In following Hammermechanicman’s suggestion to check the breather, I removed the wide breather tube from the air intake, and I was able to start, run, and throttle up the engine without the black smoke and rough...

Thank you, StarTech for your expertise here. Since I don't have a leakdown test kit or the countersinks, I can however, clean the seat with Q-Tips and grinding compound, along with careful inspection of the bowl gasket. I did find new bowl gaskets and carb needles on eBay, as well. If there's a...

Here is the exploded view of the carburetor on this engine, to let all of you know what I have. It is a different carb than the one posted above in the link. Thanks for the posts, guys!

Thank you for the tips, 1fixitman! Your suggestions make a lot of sense, however, the carb is currently still on the tractor, and I'm on vacation starting tomorrow morning, and won't be able to pull the carb to see about the o-ring and plastic piece until I get back. I did print out an exploded...

I always clean the carburetors myself in my cleaner, and in this case the bowl gasket was not damaged or disturbed. It fit perfectly in the channels upon reassembly. Neither did the ultrasonic cleaning improve nor make the symptoms worse than before. I’m very meticulous when it comes to...

Not real sure how to test the crankcase vent to see if it’s clear or plugged. Also, I’m guessing that if there was blow-by, the oil would cause a different residue on the plugs than black, powdery soot, perhaps even fouling the plugs. There has been no sign of oil burning whatsoever to this...

Actually, I have not checked the crankcase breather. Could you please expound on that a bit? Thanks!