 Bought myself a new project. I always wanted to tackle a Polaris 500. They're known for their cam issues And I ran across one that Had that issue so boys wanted to tackle it. I've heard a lot about it pick this thing up cheap figured for a hundred bucks I can throw a cam in Went on YouTube looked at a bunch of videos and haven't really seen anything Pertaining to removing the camshaft So I thought I'd shoot myself a quick little video. It's it actually looks pretty easy So I'm gonna show you what to look for what to do how to start out and everything you need to remove so The only thing you're gonna need for this job is an 8 millimeter socket and 10 millimeter and probably a little piece of wire And of course your cam cam so I want to point something out quick See that center lobe That's how it's supposed to look They're notorious for the exhaust lobes wearing out And I'll show you what I mean once I take this apart so the first thing you want to do is Take your rocker cover off there all eight millimeter screws pull that out and then This is a bad design by Polaris, but what they did was they put the rockers and I'm sorry the intake and exhaust valve Rockers all on one shaft and they're known to wear out I don't know if you can see in here Look down closely my center lobe is worn So next thing you want to do is remove a bunch stuff. So take your access cover off eight millimeter bolts take all the bolts off your starter rope cover Of course pull all your plastics off first makes it a lot easier You want to remove your fuel lines and Your anti freeze upper hose right there and the reason you want to do that is because we're gonna take that cover off Once you take that access cover off. That's how you slide the cam out So we're gonna remove that last Another thing you want to do is there is you've got your chain There is a chain tensioner Right here And we're gonna pull those off pretty soon But before we do that and the most important thing you want to do before tearing this apart Is you want to make sure you're at top dead center? A couple different ways you can do that You look here see those two marks up there I'm sorry my Camera's shaky here. I'm trying to hold the laden hold the camera at the same time So you want to make sure those marks are straight up or at an angle? And there's another way you can do that. There is a Access hole here if you've got this on Said I got to do this to hold the camera In the flashlight in there. Don't know if you're gonna be able to see that. Okay. See that little white mark Let me just pull the cover off to see what I mean Okay, so there are marks on the flywheel Somebody already tried to adjust the timing Probably isn't gonna zoom into well, but there's a tee there So with your cover on and you're looking at the hole There's a mark on the cover you line that up with that tee and you're at top dead center When you're at top dead center These marks up here should be straight up on top I like to go one step further. I like to grab a screwdriver put it in the spark plug hole and Move this up and down just to make sure the piston is actually where it needs to be I just kind of watch it. So yep, I am at top dead center Okay, so the next thing we're gonna do is Remove the chain tensioner if you don't remove that This chain is gonna be tight and What I'm gonna do is I'm just gonna take these and let me move the light. I'm sure it's probably right in your eyes Move these bolts and I'm gonna use that wire that I showed you and I'm just gonna hang it up here because If that chain falls off don't at the bottom and you got to pull the flywheel off and Readjust everything so I'm gonna try to do it the easy way So I'm gonna take the change tensioner off. I'm gonna take those three bolts off hang that up and then I'll take my 10 millimeter bolts Or sockets, sorry 10 millimeter socket the one two three four and that should just come off Okay All right, so remove the bolts of the chain tensioner and this is what it looks like so as that wears it Who's in and out there is uh, it's like spring-loaded. There's a way to adjust it So when you install it you push just back and I think Push that clip in I'm not gonna do that now and next thing we're gonna do is Take the rockers off Pulled three of the bolts off just to speed things up a little bit Now we get to see what the real damage looks like Again hard to do with one hand here we go Okay, you kind of see how much where I got going on there get a better shot Cam lobe is pretty well gone It's a better shot under it under a decent light There is actually See how that's worn Right here. It's a pretty good groove there. That's telling me the exhaust Valves were not opening correctly Okay, so I did have to move that elbow the coolant Now I'm gonna take these These off that's for the access cover Once again doing this with one hand hang on Okay, so remove the cover a little bit of oil in there and Kind of see what it is. So now before I remove the cam. I just want to show you a little trick. I did so I removed Those three bolts and I hung a wire up here. I also scribe the mark on the chain To the timing mark just in case I lose it but right now That gear is off the camera. So I Should be able to Slide that out. There she comes. I don't know if you can see that in the camera, but That lobe is pretty well gone I'll bring it over here to the light not much left there Old one Okay, so you've seen how I've done that Basically, you do just the opposite of what I showed you Except for one thing when you put the rockers back in your rockers are installed top double check that you're still at top dead center Check your valve clearances that I have to research out. I don't know I'll look that up and find out But hey, I hope this helped you out because Enjoyed showing you guys. I know there's a much out there. So I'm sure you guys have been looking to Hit the like button if you like my video and please subscribe. I've got a bunch of other players fixes I just do this as a hobby make a little extra money and hopefully one day Maybe I'll make a little money off of YouTube doing this but So like I said, I hope you enjoyed it till next time one last thing when you install this You're this is your spring tensioner For your chain tensioner you have to take that bolt out the top. See this Spring in there. You can push this in and it'll stay in Lever here press on that Pushes in if you don't do that When you put this back in It's gonna be super tight and you're gonna wreck your chain So so take that bolt out of the spring in it Install this back in the engine bolt it down put your spring in your bolt back in and that's automatically tension