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Here is a video of me mowing with the machine the other day. On video it sounds perfect because, like I say every time I post a video, the mic doesn't pic up the misfiring, and it misfires about once per second. It's probably "good enough" at this point, but I'd really love to get it running...

Yeah its misfiring about once every second or so, but the mic on my phone doesn't really pick up the miss. It works well, it cuts well. I don't have any SUPER thick grass but in the thickest grass I have, its good. I did try partially covering the intake last time I used it, it had no effect on...

Flywheel key looks great, nothing deformed or bent, everything looks just like it should. Which you'd expect, the machines not that old, it definitely was still on it's original blade and aside from lots of rust and flaking paint, there was no damage to the blade suggesting it hit something...

Ok I just replaced the ignition coil and still NO change in behavior. So to recap, I have: cleaned the carburetor 3 times replaced the fuel line cleaned the fuel tank confirmed the tank vent is clear replaced the spark plug replaced the ignition coil put in fresh gas and oil gapped the valves...

Ok I'm finally getting back to this. I'm not sure how I found the parts list above because I can't get any results from jacks except parts lists for the body. I can't find a parts list/breakdown for the motor. I'm going to assume the camshaft is melted and needs to be replaced. I do know my...

I don't understand this. Aren't both valves fully closed for the entire compression stroke and then the entire power stroke? Or at least almost all of both of those strokes?

Does the engine HAVE to be at top dead center to adjust the valve/rockers? Or can the engine be anywhere in the cycle as long as its a point where both valves are fully closed?

Yes, and I've also confirmed that the vent (which is not part of the cap) is open. No change. I mowed my lawn with the machine again today and the dying problem seems to have been solved by the last thorough fuel system clean-out. So now its just the misfiring, I'm leaning towards bad coil at...

Ok update time. I unplugged the coil's ground line and started it up, no change in behavior. While I was at it, I also fully removed the muffler and started it up, just in case it was clogged internally in a way I couldn't see, no change in behavior. Except people a mile away could hear what I...

Ok I found the ground wire for the coil and unplugged it. I put a little electrical tape on the coil side connector to make sure it doesn't try to arc over to the engine block. And I taped the wire to the plastic body of the mower so I don't loose it or melt it on the muffler. Its too late at...

Where is this kill wire?

The whole point of this project was to make a video where I fix up this machine and sell it. But I really don't want to sell a mower that I'm not confident is working properly. So I'm not really sure what I'll do at this point. I have my own much nicer mower, I have no need or desire to keep...

This is really starting to drive me nuts. After cleaning the carb as thoroughly as I can, including soaking the jet in carb cleaner for a few minutes, then spraying out both ends of every hole with the stuff, and after cleaning the tank with soapy water for an hour, I let the machine sit for a...

This has been an ongoing saga, I've already done all of those things at this point. Except testing compression, I still don't have a gauge. The machine isn't in that bad of shape probably because it's only 6 years old.

Last night, I took the tank and carb off again. I soaked the jet in carb cleaner, then sprayed out all the holes and all of the bowl and body of the carb again. Then I put hot water and some dish soap in the tank and shook it vigorously. Repeat a bunch of times. Then flush with tap water for a...

The rocker issue was just because I took the engine over off and didn't realize that removed the pressure holding the rocker on to the rods. So I'm just going to drain the fuel tank again, remove and clean the carb again, and see what happens. The fuel tank looked plenty clean to me, but maybe...

I haven't had time to even try to start this machine yet. But I was sitting around yesterday and I realized that the rocker would have fallen off when I took the engine cover off. Meaning the rocker isn't the problem and I fully expect this thing to run like crap again once I try to start it up...

Another thing I don't udnerstand. I was able to pull the cord and get the machine to fire a few times before it died again. If the intake vale is stuck closed because the rocker isn't touching it, how was the engine able to run at all? That doesn't make sense to me?

So it felt like the set screws had loosened up a lot, even though I had tightened them good and snug with my T10. I re-tighten them after I readjusted them, squeezing as hard as I could with my T10 driver but no luck. Is there a trick to this? The first T10 (bit) I used snapped when I was trying...

Ok I took the valve cover off and the problem became very clear. One of the rockers fell off. I was able to press down the valve by hand and snap it back in to place. But how did this happen in the first place I wonder? I did JUST adjust the valves, they seemed too tight, so by internet specs, I...

It was running on and off for a over an hour the day this happened, however there is zero crud anywhere, so it seems very unlikely it would be overheating. I'll have to take the carb off again, then I can take the head off completely and take a closer look. If it is just some crud, do I just...

Did some poking around tonight. Double-checked the spark plug. Either this plug is mint, or I don't understand spark plugs. So I'm assuming its not the plug. Then I finally got around to popping the flywheel off. The key looked perfect, no sheering or gaps or looseness or anything like that...

I didn't check the key yet no. It seems strange that it would be that though. The machine ran - not perfect - but pretty good for an hour straight and suddenly it forgets how to run. I'll see if i can check the key Friday just for the hell of it. And I'm thinking ill replace the plug too since...

Yup I cleaned the carb the other day, took it all apart, sprayed everything. The tank looks totally clean and has seen several tanks of fresh gas so theres no old fuel anywhere. Would a dirty carb cause backfiring out the exhaust?

It was misfiring, the issue is that the mic on the phone doesn't pick it up. It's clearly missing and the whole machine kind of shake-rotates when it misses. It's doing it every couple of seconds. I need a better camera & mic to pick it up though. ALL THAT SAID, there have been some...

Ok I was able to properly adjust the valves tonight. They were both a little too tight, but not too bad. Put it back together, fired it up, zero change. I'm really running out of ideas. I guess theres that keyway thing people have mentioned. Although this machine is so new, I doubt that would...

The drama continues. So last night I went to check out the valves. I was expecting them to be too loose, because thats what I always see on youtube. But turns out mine were too tight. Very tight. So I tried loosening them. And wouldn't you know it, the tip of my T10 socket snapped right off...

It is definitely misfiring a lot, the tiny mic on the iphone camera doesn't capture the sound great. If you could hear it in person, you would not say it sounds fine.

I'm watching valve rocker adjustment videos on youtube right now. Looks easy enough, I guess that will be the next thing I try. I do own feeler gauges, but I have no glue where they are, I'll have to search for them first.

Whaaaaaat a ****show today turned in to. The first thing I did was start up the machine and experiment with blocking the air intake by different amounts. It didn't seem to have any affect on how the machine ran. MAYBE a tiny bit smoother with it half covered, but it still misfired. No...

The mic on my camera doesn't capture the sound perfectly. So it does improve once it warms up, it never gets good. Its always misfiring/hunting. And with the new carb, it also has an awful startup. I didn't see a filter in the fuel tank and now I think its full, or close to it. I'll see if I can...

Doesn't it seem unlikely that the original carb was dirty, and the brand new one is also dirty? Seems like in this scenario where I've gone through two carbs, the air leak would be the more likely problem, no?

Ok well i disagree with some of what you say, but this part I don't understand at all: I don't know what you mean here or what you are suggesting I do?

GAH! Update: total failure! The mower behaves the exact same way, rough starts and sputtering/misfiring while running! I put the new carb in there, with the gasket that the old carb was missing. I also replaced the short little fuel line it has. After mowing half my lawn with the same poor...

Ok I modified the two springs tonight and the flap seems to be much tighter. The hook end that hooks on to the body of the mower, I basically cut the 90° off and then bent a new 90° angle into the new end of the spring. Basically pre-tensioning the spring so it pushes harder. It was kind of a...

Hmm I guess I worded this poorly. I don't mean Idle in the traditional sense of the word, I mean lawnmower idle, which would be full RPM. BUT that said, I replaced the carb today and the old one was missing an O ring that could have caused a vacuum leak, so that alone may fix the problem. It...

Because you don't have time to use a customers machine for a few weeks to let seafoam work its magic. But as a homeowner, I have that time. Also I'm not against cleaning a carb. Well, I am but not like that. Why bother cleaning when a new one is $10. But I'm just saying, it doesn't always fix...

I have to disagree on the effectiveness of seafoam. It doesn't always solve the problems but it has helped a lot more engines for me than it has done nothing for. Two mows isn't a very long treatment but because I need to sell this mower and finish it's video, I really don't have time to mow...

Ok update time. I removed the rod holding the back door in, and I removed the back door, then I removed the springs. Turns out, the springs are both in perfect condition! The problem seems to be that the door has a little hole in its plastic that the springs slide in to. And that hole has...

Ok I've now mowed my lawn twice with this mower, and its a pretty big yard for a small push machine like this. No change in sputtering/misfiring at all even with all the seafoam I ran through it. I even ran it dry then did a little more mowing with just clean, straight gas, incase I was...

The larger vice grips and the hammer worked. Very very slowly but i was able to get the rod to start moving.

Oh so turns out the "unformatted" number DOES find the engine on jack's, they just have an odd search result page that really makes it look like no results were found, when there actually is a result found! Also brand new carbs are $10 shipped on ebay LOL yeah I'll just get one of those.

Yeah so the choke opened slowly but it definitely did open fully. I have had a few engines over the years that ran rough, and with some seafoam treatment over the long term, they would clear up and run well again. But the plan is to get this thing running good and sell it. I don't have time to...

I poked around with this today, using vice grips. But the rod is pretty rusty. I was able to get it to rotate but I was not able to slide it at all. Any tips for how I might get it to move? My only idea is using a bigger set of vice grips (i was using a mini pair), clamp as hard as I can, and...

Ok this is weird. I did find another label that had the engine model and serial on it. But the format of the number does not seem to match the format the briggs & stratton website is looking for when you're trying to look up a motor! And I was not able to look it up on jack's either...

Update: Yesterday I fired it up, clamped the handle, and pulled the air filter off. No change. Also regarding the choke, first dumb question, is the choke the FIRST butterfly you see looking into the air intake from the air filter? If so, then it was opening up fully. It was moving slowly, I...

So I was able to find a TB110 diagram on jack's site, but it doesn't include the engine. Here is my engine label, it has lots of odd numbers on them but I can't seem to successfully search any of them to get an engine diagram. Did I miss a different label or is something else going on here? I'm...

With all that rust, thats not going to be fun. It looks like theres only an opening for it on one side. So is the idea, that you grab it with some needle nose in the middle and slowly inch it out bit by bit? Also regarding the rear flap, the "trailflap" (#4 in that diagram), do you have to...

Here is video of the machine in question. Funny thing is, on video it doesn't really sound like it's doing anything. But in person, its definitely running rough. You can see at the end of the video, how the handle is vibrating. Ok so the backstory. This is a trash rescue. It was overfilled...

Here is a closeup of the rear door and springs. They look pretty good. The springs look like they are installed right, they don't look damaged or corroded at all. Very weird. It's like the original owner left the bag on for 6 years straight and the springs just "unsprung". Also it's not...