 Hey everyone, Shabear1000 here. Today we're going to be checking this John Deere out. Brakes are strutting. Overhead valve v-twin. 22 horsepower, okay? I've mentioned before that it was the last time we had it out mowing with it. It was backfiring. Surging and all kinds of stuff. So what I've done is I've loosened these plug wires. So I can pull them off with these pliers. I'm going to want something with the rubber hand or get some rubber gloves. And we're going to see, I think it's only running on one cylinder. I'm pretty positive. So we're going to see if one of these cylinders is not firing right. So let's get into this thing. Okay guys, so what I'm going to do is I'm going to go ahead and start this up. It's just on idle. I let it warm up. And like I said, I've already loosened these plug wires. So I'm going to pull them off one at a time and see what's going on. I'll turn you down. So it's not going to be so loud for you. Here we go. Let's pull them plugs out of there. Now you guys heard that surging, right? I know when I did the surging video on this and we fixed that was another issue. But there was a guy I wanted to argue with me up and down. The spark plug will not cause surging. Well, you seen when I pulled that plug wire off that created a dead cylinder which simulates a dead spark plug and it started surging. So if that guy's watching right now, there's your proof spark plugs will cause a surging engine. You idiot! God, what a moron. All right, let's pull these plugs out. It wasn't running that good when I pulled it around here. So let's go ahead and pull the plugs out and check them. I did put new plugs in it. I did tune it up when we fixed the surging issue. I did end up putting new plugs in it. Well changing all that. So I thought the backfiring was a valve, but it may not be. Let's go ahead and pull these plugs out of here. Okay, so these are 5-8s. Now the spark plug is not the only thing that can cause that. Apparently I'm getting intermittent spark because when I pulled it around here, I could tell it was only running on one cylinder. Now it seems to be running on two. Could have a faulty coil. You know something in the coil, one of the coils going bad or something. But let's go ahead. This is just 5-8s. Here's that plug. It doesn't look too bad. Maybe a little lean. I don't know. That looks pretty good. It looks pretty good. I've seen them a lot worse. Let's go around to the other side and get it pulled out. Okay, now let's yank this one out of here. Well, it sure was acting like a like a bad exhaust valve. You heard that one backfire. Well, that's what it was doing pretty much constantly. A little white. But it's not, like I said, I've seen them a lot worse. So why do I have intermittent termite? Intermittent spark. Okay, well, there could be, you know, maybe a mouse got up in here or something. I think it's too small for a squirrel to get into, but I'm not saying it can't happen. Let's pull this cover off of here. Got some bolts around here. We'll pull the cover off. I'll get that pulled off. I'll show you which bolts these two you just loosened. That one you just loosened. I got to pull the fan cover off up here on top there. I think it's 5-6s. So let me grab some tools. And I'll get this top pulled off. It's kind of self-explanatory. Pull your air cleaner out. Air filter. And let's see if there's something up in here that's just not right because I'm telling you why I pulled it around here. You can tell it was running on one cylinder. There's a constant mess and like it didn't have any power, didn't want to come around. So let's go ahead and do that. I'm gonna get that pulled off and then I'll be back with you. Well, what I'll do is I'll get the bolts out and I'll pull it off on camera. That way you'll see what I'm seeing. Okay, I got all the bolts out. I have not had that off there yet. There is one bolt down in here where the air filter goes. You can use a straight screwdriver, a seven millimeter or a quarter inch. I just used a straight screwdriver. Pulled it right out of there. I've got all these bolts loosened up. Now this thing should come off. Okay, so right now I'm not seeing anything that's jumping out at me. Dead bug down in there. I don't see any wires chewed. Ick. Man, I don't know. The second it could be there's diodes down in here or transistors, resistors. Resistors down in here. These coils operate the same. You know what I mean? So you can see these coils. There's a wire running from that coil to that coil. There's one running down here. Right in here is this resistor I was talking about. It could be that, but I really don't think so. I was thinking maybe one of them wires got chewed and was shorting out and I'm not seeing anything. So with the back fire through the exhaust, I thought maybe it could be an exhaust valve. But running intermittent spark. Well, I don't even know guys if it wasn't intermittent spark or not because I mean it could be you know running on one cylinder could be one of the coils is bad. I was guessing it would be this side. So I'm not seeing anything chewed through anywhere. No mice damage. All right, let me put the plugs in. We're gonna start it up and see if we can hear anything through the intake. If we hear something through there, it's not gonna be a good sign. So let me get the plugs in it. We can fire it up. Don't run it too long without your your cover on here. It will get hot, but we're just gonna run it for a minute. Let's see if we can hear any popping up through here. Okay guys, so it's gonna be a little loud. But I'll turn it down the best I can, but if it's making any noise, I want you guys to hear it. So let's go ahead and fire it up. See if we're hearing any popping through here, and it's running beautiful. So I don't know. I was also looking here as well to see if there's any sparks going on here because they don't have rubber grommets on it. Sometimes they'll wear it through. That'll cause an intermittent spark. But I'm telling you when I pulled this thing around here, it was running on one cylinder. I could just tell it. It had no power. Okay. I'm gonna put the cover back on. I'm gonna get this back together, but they're cleaner back in it. And I'm gonna drive it around. Maybe cut the front of this yard and see, I know there's not much there, but there is some grass there, and see if I can get it to duplicate it. If not, you can't fix something that's not broken, right? So it's like, you know, I've had so many people in my shop bring me a car. The check engine light comes on periodically. And they always brought it when the check engine light was not on. Well, if it's not on, it's not throwing a code. I can't tell you what's going on. You know, or they'll bring it when it's running fine instead of, you know, you just went to the store. It was running like crap. You should have dropped it off to me then. But That's neither here nor there, but it's the same thing kind of here because It seems to be running fine now, but I know when I brought it around here, it backfired twice through the carburetor. I thought I heard something in this area like a little popping noise. Which would mean to me either a exhaust valve was stuck closed, or, you know, not opening all the way, causing it to come back through the carburetor, or a lot of times an exhaust cam, your camshaft and exhaust lobe. If it's not opening your exhaust valve, it will come back through there. But that doesn't explain to me why it was backfiring through the exhaust. That's usually the sign. I'll tell you what that is. If it's backfiring through the exhaust, usually, if it's a valve issue, it would be either a crack valve, burn valve, bent valve, because it's not sealing properly. Also, these things are notorious, which I thought may be an issue for the valve guides coming loose and coming out. Usually due to overheating, sometimes wear can cause that. This thing does have a lot of hours on it. But usually it's overheating and that'll cause your valve guide to come out. But, you know, backfiring through the exhaust, I was thinking, you know, probably just a burnt valve or cracked valve pulled the heads. I don't know, man. But if it was a cam lobe worn off, it wouldn't run good sometimes and sometimes not. It doesn't work that way. Once that cam lobe is gone, it's going to run like crap all the time. Let me get this put together. Let me ride it around and see what's going on with it. Also, I got to thinking, too, if it's a burnt valve or a cracked valve, it'd be backfiring all the time. Maybe not consistently, because as your engine gets hot and cools down, so does the cracking valve. It expands and contracts. And when it contracts, the crack will get smaller to run a little better. If it expands, the crack will get bigger. If you follow what I'm saying, it'll run worse. But it's running perfect through here. So it's not out of time, which I knew that started too easy. I don't know why it was running on one cylinder. I don't know why it was backfiring. We didn't do anything. I pulled the plug. I didn't even clean them plugs, guys. I just threw them back in. I don't know. I'm trying to find now. We know it's not a cam lobe. We know it's not a bad valve. We know it's not a valve guide. The only thing I can guess is it was intermittent losing spark on one cylinder. I thought it was this, because that's pretty dirty. That's been in there every year. It's time for a new one. And I took that out after I pulled it around here. I took it out. It made no difference. It was still, like I said, it backfired through the exhaust two, maybe three times, and then I heard something through the carburetor that I'm not hearing now. We all know that camshafts and bad valves and things like that don't fix themselves. Electrical issue can. I mean, it can be intermittent and not making the contact it needs. And then just holding on to start making contact and be that way for a long time, but I foresee other issues with this because we didn't fix it. So, yeah, it's just common knowledge. You know, mechanical things don't fix themselves. I don't know, guys, so there's my diagnostic. We didn't really diagnose it because I still don't know what the hell was wrong with it. It is wrong with it because it was doing it. All we did was pull the plugs, check a couple things and put it back together and it's running good now. So it's not fixed. It'll do it again, just a matter of when. It could be next year. So when it does it again, you know, we'll try it. So I thought now's a good time. It's running bad. It's backfired. It's making noises. Now's a good time to put it on camera and start it running fine. So I even mentioned in a couple of my other videos, you know, I think exhaust valve is bad because, I mean, that exhaust under there's the muffler. I mean, it was red hot. It was getting red hot. So I said, we can't we can't run it like that. You know, we're going to start a fire or something. So anyway, guys, sorry, we didn't get to learn anything. But there we go. It's running for now. When it starts acting up again, be sure to check it then. So I don't know. Well guys, if you had the same problem, let me know. I mean, I've had intermittent sparks before like that or, you know, dropping a cylinder. But usually you can see that problem. Usually, like a wire rub through somewhere or, you know, a mouse chewed a wire or something. It was intermittently sparking, dropping that cylinder or, you know, like a bad coil. Coils don't fix themselves. You know, resistors don't fix themselves. You know what I mean? Once they're going bad, they're going bad, they're bad. Sometimes the coil, after you leave it set and cool down, sometimes, yeah, like it'll shut off, then you leave it cool down, it'll start right back up, run good for a few minutes, shut down. Well, that's the coil getting hot. That's pretty much self-explanatory. This wasn't on it. It was running on one cylinder from the time I started it. I could just tell it. You know, you can tell how your machinery runs like your car. If you're dropping a cylinder, you know it. You'll know at an idle. You'll know going down the road. It don't have as much power. I mean, I knew it. And then I kicked the camera on and it's fixed. Okay. Well, anyway, guys, Shae Berry, the myth man, ledger. I'm gone for now. Again, sorry we didn't get anything done. But, you know, I'll put a new filter in it because it needs one. But that wasn't the problem. Like I said, I pulled that out first. I thought, well, this may be an easy fix. Let me check that. But usually that just bogs down power and it'll like, it'll flood out. It'll be blowing a lot of black smoke. And because, you know, it's choking the self house front and rich, but it wasn't doing that. But I thought, well, let's give it a shot. And I seen how I thought, ooh, that's probably the issue. Well, it wasn't because it was still doing it. And I decided, hey, let's go get the camera. You know, well, whatever. That belt, that's a brand new belt. Look at it. Son of a... God, the stuff you buy anymore. It's cut the grass one time. Oh my God. Right there. I don't know if you guys can see that. It's ready to fall. It's worn almost through. It's got a hunk out of it. Damn it. All right. Well, we're going to need a new motor belt. That thing's not going to move very long like that. I don't know what the hell caused that. Probably just a bad cheap belt. And the other one was okay. It had a groove around the center of the outside. I probably could have used it, but I told Monkey, I said, nah, I'm just going to go throw it away. Well, shoot. All right, guys, we'll see you in the next one. Y'all stay safe. Bye-bye and take care.