 Hey guys, so you got your Plerus 500 engine making the clunking noise. I'm going to tear one down and show you what it takes to take it apart and show you what's going on. Okay, so this had a clunking noise in the engine. I wasn't sure at first if it was the valves making the noise, which they're kind of known for. Valves might need to get ground because that makes a rattling noise. I'll check out my video on how to replace a cam or a head gasket, I'll post the links for it to show you how I got this far. So I'm going to show you what I got going on here. So if I grab the clutch, watch the piston, it stops. There's nothing there, pull all the way up, it stops. It actually moves, so that tells me the piston skirt's probably burnt off. When I started tearing this engine apart, I noticed the boot coming from the head to the carb was loose. So that told me it was sucking in air, making this engine run lean, and this is what I got going on so far. I got the head removed already. I was able to leave the cam and the rockers all on tack. I just pulled the four bolts, they're 14mm bolts, pull those out, pull your exhaust clamp off, pull this cover off, and then you've got your timing chain gear, three bolts that pulls out, pull that off. And what I did was I used something to hang up the chain so it doesn't fall into the block. And what I'm going to do next is there are four 12mm bolts that go one here, one here, one here, and one down here. And make sure you use the right socket. Let me show you what kind of socket I got. Use that one. More points, you want more points on it because the head on those bolts are... So these are the head bolts. See how they got points on it. Okay so the next step is to remove the oil filter and then we've got our oiler down at the bottom here. The behind oil filter, you've got your oiler's back here, two bolts that come out unhooked from the jug, and then pull four bolts and that should slide out and then once again we'll be hanging on the chain. So I'm going to do that now, but before you start any of this of course make sure you drain your coolants and your oil, depending how far down you plan on tearing this engine down, probably won't have to drain the oil, but probably be a good idea. Okay so here we go, this is probably going to be a little bit of a mess because I did not drain the oil, I'll do that later. I think it's kind of funny because look at that, the oil came out. There's a date on there, 419. This thing's been sitting for a year so I changed the oil and probably wasn't too long after that that leaned out the engine. I'll take these two bolts off for the oilers, put them out of the way, and I'll take those four bolts off, 12mm, and then on the other side of the jug there's two little 8mm bolts on the outside. Alright so now I'll pull the bolts, this is what I'm talking about there, grab it a magnet and pulling them off. They suggest that you put those bolts back in the same position you took them out in. So on this side, pull your radiator hose here, and then I'll be on the jug here, so you have to pull that out, and then the jug will be ready to remove. Alright here we go, just pulling this off and out, there's nothing left of that piston. The jug looks good, I don't know if you can see that in the camera. Minimal scoring, I can probably use a honing stone and pull that out. There is nothing left of that piston. So like I said, the guy ran it lean and it fried the piston skirts, so I'll be replacing that piston, that did a lot of damage. I'm not quite sure internally what kind of damage is done, I'm going to inspect that. I might have to take the engine out and split the cases just to make sure there's no metal in there. I guess the next thing would be to do is I'm going to take this little C-clip off and then pop that piston out. I don't know if you can see back there, but way behind this bearing is a bunch of piston skirt stuffed behind it, the engine won't rotate. So what I'm going to do is probably tear this engine out, split the case sides, clean everything up, inspect my gears, put this thing back together, order a new piston, and I think that's all it's going to need, it's just a piston and a good cleaning. So there you have it. So I managed to get the engine out, and I found obvious pieces of the piston skirt. Actually it wasn't too bad of a job. You want to get your clutch covers off, there's a bolt there, or not that goes there, I should say, two bolts here, and then disconnect your stator and your positive and negative to the engine. It was pretty simple. Once you got your clutches off and your clutch cover, you also had your hoses to disconnect. The rest was actually pretty easy. So if you have any questions or comments, feel free to leave them and I will get back to you until next time.