Loosing coolant

I have a 02 Sportsman 500 H.O. It is in the constant stage of loosing coolant. Not a lot just regularly until there is finally none in the overflow container. It warms up and pressure causes small amount of coolant to be lost through overflow into the overflow container and out that cap. When it cools the coolant goes back down. After several of these times the level in the overflow goes to empty. Any ideas? I've replace the radiator cap... same thing. It's happening to my 2012 also. was thinking of putting the overflow container at a higher point...wondering if that might help. Any ideas?

Newbie – 2007 Sportsman 800

New guy - picking up a well maintained 2007 Sportsman 800 this week. I rode these beasts in Afghanistan and absolutely loved them. My goal is to turn this quad into a twin of the beauty I had back in Kandahar. Oh, and I’m looking forward to taking it trail riding and hunting too!

Temp light

Hey i have an 07 400 outlander and i wondered if anyone knew what would cause a coolant temp light to stay on all the time even when it's cold..and how to test the temp sensor? There are 2 connectors on the sensor and they don't have continuity.

Bumpers & front skid plate for new 450 DPS.

Looking for an opinion as to whether or not to add bumpers and a front-only skid plate to my new 450 DPS. It will be primarily used for light ranch work and pulling a 52" rough-cut mower to knock down tall grass and thin brush. The area has already been cleared of obstacles.

Thanks!

2005 Polaris predator 500 won’t start

So last summer I rode alot but the quad seemed to burn alot of oil so I stopped riding it as much, but also any time I had it running it had a knock to it it that sounded like valve knock, I was told to adjust valves but im not sure how to adjust them on this quad to I didn't bother it, I just stopped riding it, I pulled it out a couple of months ago to ride it and it wouldnt idle on it's own but if I got into the gas too much it would cost down and die, so I put it aside for a couple months, now im finally getting back to it and I can't get it to start, pulled the plug and has spark, has gas but won't fire!? I pulled intake off and when I crank it air comes out of the carb along with old winter gas, I haven't got it to fire one time since pulling it out of the shed but I ran a compression test on it and it didn't even read, it would fuck the gauge alittle but didn't get anything, I assume because a valve is stuck open and all the compressed air is escaping through the carb? Can anybody help me out? Could a valve just need adjusted or be stuck open and if so how do I adjust them on a shim under bucket system?