Nice sled. Very clean! Just incase you havn't noticed..in your profile you say its a 98..its actually a 97. Also I'm a little curiouis to the lines leading from the top of tha airbox?
Hey bro, I was the same way when I bought mine. I learned from watching and that. To clean your VES valves you want to slide the metal clip down on the black caps. Be careful thoe, keep peassure on it with one hand and slowly let it come out, there is a spring in there. Once you take them out you will see on both sides of the bellows where you have to take and allen key. Unscrew the 2 bolts out. Once out the housing my seem tight/hard/stuck. So wiggle it untill it starts to loosing up and SLOWELY try to pull the housing out from the engine. This might be hard if the valves are gummed up. Once you pull them out you will see the valve, it will appear to be back form the carbon. Unscrew the valve from the housing, you will want to hold on to the bellow to do this. Thats the plastic cap, cause the valve screws into that. Once you unscrew it use carb cleaner/gas to clean the valve. The carbon will be hard to get off! Use real fine sandpaper (emmory cloth) to remove it. Also you can try a razor blade but be carful not to scrape the metal, or cut yourself. ONce they are clean look to where the valve sits in the engine. Just above you should see a small tiny hole, spray some carb cleaner or gas down into the hole and that say a paper clip and try to get all the carbon out of the hole. CHeck on the housing just above where the valve screws into the hole you will see a place where it looks kinda like a chamber. Clean that out. That should be it for them. Also check the bellows/rubber in the housing to see if it may by ripped, cause you said you seen exhuast comming from 1 of the valves. If they are good...screw the valve back into the housing and make it snug and turn it untill it is linned up paraelle with the housing. Place the VES back in the hole and screw to tow bolts back in with the allen keys.(Make them tight but dont tighten them as hard as you can!!!) Place the spring in the hole in the top of the valve houing, line it up with the grove in the black cap and pull the clamp back over it. YOu might find that abit tricky but it will come on. Gets easier everytime you do it. I know thats alot but thats how you do em. You sled will feel 10x as better once you have them cleaned. Anymore questions just ask...Originally posted by moto-ski-man
[br]Thanks for all of the help everyone. I probably don't sound too smart about this stuff but it is my first sled with more modern technology compared to my old xlt. I have been trying to find a website that has a how-to on cleaning VES valves with pictures, since I have never seen or done this before. Hopefully that is the problem since it is kind of annoying to just buy a sled and not have it run the way it should. If someone could possibly tell me how, or lead me to a good site that shows how to clean the VES valves that would be perfect! Thanks for all the help again.
Go ahead and clean the carbs but I am not so sure thats the issue. I went thru my carbs twice and they are clean as new and I have a similar problem with my sled. Goes like a raped ape for a little while and after I come to a stop the idle drops down and the sled wants to pull itself. I think its a secondary clutch issue. How high is the top of your belt sitting on the secondary? I am going to post this in the general polaris post and hopefully get some feedback. Got a couple other issues as well.Originally posted by moto-ski-man
[br]I just put in new spark plugs and I have noticed that the machine runs good when I start to drive it, but then after a couple minutes it starts to run sluggish, it will idle very low, and will bog until the revs get high enough to where the clutch engages but will still run sluggish. I am wondering if it could possibly be the cdi or coil?
If you can remove the valves without tearing the gasket that would be good so you can put them back in and try the sled out to see what effect it had. But I would recomend if you did buy new gaskets for next time you have to clean them. By the looks of the pic I seen of your engine, looks like theres a good amount of oil that came out over time and probably weakened the VES gaskets. Also if you are going to get a new belt make sure you get the 074 and not the 067.Originally posted by moto-ski-man
[br]Thanks XCR4403X, I will give it a shot at cleaning the valves, but is there anything you replace each time they get cleaned like a gasket or something, just so I am prepared. Zrxpilot my belt sits a little below or even with the secondary and the adjuster is all the way to 5, but I am picking up a new belt soon since this one is clearly worn.