 Let me show you what this bad boy can do. Welcome back to another episode of titanium man garage and right behind me is going to be my next project and I love the backstory on this thing. The guy brought it to the dealership, he thought it was a camshaft, turned it out, they called him back, told him they needed just timing, it was running rough when he brought it in and after they monkeyed with it and 1200 bucks later he got it back and guess what it's not running. So he got fed up and decided to sell it to me for 1200 bucks and I'm gonna figure it out. My guess is if they went through the timing unless they screwed up it's probably a CDI or there's got to be a carb issue. So I'm interested in finding out what is really wrong with this thing and prove the Polaris mechanics wrong which won't be too hard. Alright so where do we start? So we're looking for fuel, we're looking for spark, compression and I forgot the fourth thing. So what I'm gonna do is I'm gonna pull the black wire out the CDI, pull the boot off the spark plug, throw another spark plug in there and see if I got spark. From there I'll go down to the fuel, check the carb, check the fuel lines. I'm kind of hoping it's just the CDI. Alright so what are the four things that are needed to start an engine? Spark, fuel, compression and timing. Let's troubleshoot this thing and narrow down what's going on with it. Alright so we got spark so that rolls up the CDI. Alright so it's hard to read with a compression tester to check your compression because the decompression ball on the cam opens exhaust valves a little more so it doesn't give you a good reading on the compression tester. What I like to do and me just from being experienced I could kind of tell just by putting my finger over a hole they got good compression something spitting out of the spark plug hole then I'm good with that. Usually if the cylinder is bad or the rings on the piston are bad you'll know right away. So I'm gonna crank the solver, check the compression, put my finger down the spark plug hole. It's puffing up so I'm gonna rule out compression on that one. Okay so we got spark we've got what we think is compression. Let's pull the fuel line off the carb because it could be a faulty fuel pump or vacuum or it could be a diaphragm in the carb so we're gonna check that out. If you watched my video on the 6x6 I had mentioned something about using an auxiliary fuel tank to bypass any fuel related issues fuel pump crap in the tank. Well that's interesting. I found a bolt laying there I found a bolt laying there from when they must have took this off and checked the timing. Nice. Yeah as I hook this up there is fuel leaking all over the place. Looks like it's coming from the carb boot. All right I'll have to say I've never seen this before. That's the carb boot, the carburetor. When I hit the key, watch this. Yeah needle and seat's leaking, carb boot's leaking which is probably why it was running rough in the first place. So there you have it. All right so I'm gonna check that fuel filter, see how that's working until it's dripping gas already. Let's see if it pumps up. There is gas just shooting out of that carb boot. So it's the needle and seat's leaking going into the cylinder and it's blowing out the carb boot. So yeah that carb boot's bad, needle and seat and carb's bad. I could probably throw in another boot. Okay so I got compression, I've got spark, I've got gas as you seen shooting out of the carb boot and shooting out of the fuel lines. What does that leave us with? Timing. So that means they might have screwed something up. Still got to go through that carb and replace the carb boot because the needle and seat are leaking. I think gas is shooting out the carb so that's telling me the timing's off. So I'm gonna see how far this mechanic went with this adjusting the valve lash. I want to see if there is something wrong with the woodruff key in the flywheel. I'm kind of wondering if you just took this nut off and looked through the hole to see if the timing was on or if you actually took the cover off and did it the right way. So we'll find out. So I got the pull start cover off and as you can see all the rust has been cleaned off the flywheel. I can tell there has been some work done to this as it's been cleaned off. So what I'm gonna do is I'm gonna pull a spark plug and there is a T mark right here. Line that up and check my valve lash. I've got my T facing upward. It's supposed to be in the right position on the flywheel. I'm gonna put a white mark on it and so far this gear which is very clean that looks like that's in the right position. So I'm gonna take this cover off and check the valve lash. Get all the bolts off and we'll do it without removing the gas tank. That is the old gasket. So I'm getting no wonder if you actually took it to a place mechanic. Was it somebody that wrenched on things or because normally they would replace this gasket and of course they'd charge you an arm and a leg for it. Unless they were skimping off. Now I'm gonna check the valve lash. The valve lash for the intake is site. So that means the intake is actually opening sooner than it should. Alright so we got spark. We got fuel. We got compression. At least that I know of. So what does that leave us with? Ding ding ding ding. Timing. You know what that means. The owner was right and he got robbed by the mechanic because look what I found. A bad camshaft. The exhaust lobe is worn off on the camshaft. Why when he brought it in they only adjusted the valve lash and then gave back to him I don't know. So this right here is the decompression ball and when this cam rotates this spins. Look at that. It's not even moving like it should. So that's supposed to pop back in. When this spins from velocity this ball is supposed to go in but this doesn't even turn. So that's not even working right. There's something messed up with this cam. So I had people message me and say hey where do you get your aftermarket cams? What's a good aftermarket cam? I don't buy them. I bought one couple years back ago and I wasn't real thrilled about the rockers. They seemed to go on real stiff and they were tight. So what I do is I buy used cams from eBay. I also have like five engines laying around with either fried pistons or bad water pumps so I'll rob the rockers and the cams out of them. So it just so happens. Got a box of goodies right here. Try to show this. I got a nice set of rockers. Good cam. It's got a nice lobe on there for the exhaust lobe. That's what it's supposed to look. This spins like it should. Decompression ball was up and down like it should. So I always talk about mechanical specs. What are the specs on a cam? Anything below 1.28 I believe it is. I've got 1.296. So that cam's good. It's in its mechanical limits. I think it's less than 1.28. I wouldn't use it. That's a really good cam and the rockers are good. So I'm gonna throw that in and get this bad boy fired up. So another question I'd like to answer is I've had people contact me about why is their ATV starting hard? Why when they pull a pole rope that it seems to pull really hard? Well it's all about that decompression ball. After a while these get worn out. They get rusty. They get stiff. Whatever makes them stick. They get stuck open. Then when you go to pull start it it pulls really hard past that ball. So either you got to replace the cam or you just kind of deal with it. You can pull a starting rope slowly just till you get past the ball and then hit the starter key and she should spin over or you replace the cam. Choice is yours. Now why did this cam go bad? Like I said earlier in the video the car boot was sucking in air so I'm thinking it ran lean. It got hot. It probably wrecked the cam. I just installed the new cam and I put the chain tensioner on and one of the most important things is after you do that you want to move the chain back and forth. Let the tensioner do its job. Push down it's spring loaded. From moving the flywheel back and forth it'll actually push down on the tensioner. Sometimes you can spin around a couple times just to make sure it's doing its job. Then put it back at top dead center. Put your rockers down. Check your valve lash. Put everything back together. You should be good to go. Alright first try starting it with the new cam. Let's see what happens. If you like the video and subscribe. And like always, till next time.