 Let me show you what this bad boy can do. Alright, welcome to another episode of Titanium Man Garage. And today I got a treat for you because I've had a couple of subscribers ask this question. Why does your machine bog down with the air box on, but it runs good without the air box. So I'm going to show you what this does with the air box on. I'll put an aftermarket car on, double check that so that's good. So it being a China aftermarket car, I'm thinking the fuel mixture screw might need to get adjusted or just throw that junk car away and I've got my front truss over here, we're building a Makuni car. So we're going to adjust the air fuel mixture screw, which is on the bottom of this car right here. But I'll show you how I do it on the machine. So this is the hose clap, if anybody gets on here, and then I can get in here and I'll turn it all the way in until it's flush, until it's the seats, and then I'll count all two and a half turns. Oh my, that was all like four turns, maybe that's why it's drilling like crap. So what I like to do is I take a marker so I know where I'm flat and it's started, I need a flashlight. And so that's my mark where the screw is and I'll count that out two and a half turns. Half, half, two, two and a half. And ideally you want to run this thing and try to adjust it at the same time if you can but the engine gets hot. I'm going to tighten the carburetor clamp on, the air box back on, take Chineseium, also old and blind. I feel like there's too much play. Oh, I'm going to back this off, the old carb's actually had an adjustment nut on there. Oh, I have one, where'd it go? Alright, so we've got the timing set, I would pull the rocker cover off, check the cam, check the valve adjustment, it was spot on. Using the carb, like I showed you in the video before, it would puke out with the air box on. With these CV carbs, I tell you I do not like these carbs, is dependent on air flow. So it'll run great without the air box, but once you put the air box on you'll come into problems. The air box isn't sealed off completely, so you've got a little foam stuck in your vent tube that'll block off air flow. Let me show you what happened. So this air box, all the tabs were broken off for the cover and when I started it up last night, I thought alright let me take the dirty air filter off and let's run it with the cover on and I pushed hard on the cover and guess what, it ran great. So I had an idea. I swapped out the air box. I think this is actually from, I want to say 2001, 2002 style snorkel that comes up this way instead of that tube that comes up here and watch this. This thing does need a clutch, it's banging away, so bear with me. Runs excellent now. Just did a couple burnouts in the parking lot there, yeah right. And like I said with these CV carbs, it all depends on your fuel air mixture, if that isn't perfect, this thing will run like crap. You might be scratching your head wondering what the heck. There is the air fuel mixture screw at the bottom of the carb, make sure that's adjusted correctly because that will throw you off. Like I said all I did was swap out the air box, everything's sealed tight now. Actually has a decent snorkel coming up the top instead of that goofy one coming out the side like the, what is this, a 97 has, I didn't really care for that style. So here you have it folks, runs good with the air box off, runs like crap with the air box on, here's your fix, so just need a sealed air box. Now what you could do, and I've done this before if you didn't want to spend the money on air box, make sure this is cleaned out really good, put a brand new air filter on, put the cover on and you can actually use like some kind of caulk or sealer, pull that down, put some tire wraps around it, make sure it's sealed off tight, anything silicone, whatever, yeah it'll be a pain when you got to replace your filter, but that could save you some money and cure your problem. I've also, you know, if this wasn't all chunked out like this, this piece is missing. I've also tuck in just wood screws and I was able to screw right into there. Alright guys, hope this video helped, I know a couple of you guys threw that question at me, hey why does my Polaris run like crap with the cover on, here you go. Alright, hit the thumbs up if you liked the video and like always, till next time.