20 Most Recent Polaris ATV - Page 3 Questions & Answers

Odds are your carb needs to be taken apart, cleaned, reassembled and adjusted if needed.

You can improve the performance of your ATV with some extra parts and accessories. Here are a few performance enhancement tips that can be attained through such ATV accessories- Innovative Ideas to Improve Performance of an ATV with Accessories...

T map sensor voltage to high or t map sensor voltage to low

https://www.youtube.com/watch?v=FEsDt7WJrcA https://www.polarisatvforums.com/forums/atv-repair-maintenance/36119-wont-start-checklist.html https://atvconnection.com/forums/polaris-ask-expert-fond-memory-old-polaris-tech/364256-05-polaris-sportsman-500-ecm-issue.html

Should be petcock to pump, pump to carb, carb to engine.. and you have a vacuum line that makes the pump work ..usually from carb/intake to pump.

Have you check the injectors ? If anything is coming out.

Your problem is not clear. So you may do some more research and then take a decision. I found this video from youtube. I hope this can be helpful. video link: https://www.youtube.com/watch?v=01Rc80ykfVs

Hello there, I found this video for you. I hope this could help you! video from youtube: Polaris sportsman 570 code problem fix https://www.youtube.com/watch?v=YR8DN5oWazc

I am guessing you mean the float is sticking and leaking gas? If so, remove the carb and have it sonic cleaned. The jet that the float opens and closes and should be inspected for wear. In some instances, the float should be weighed for fuel saturation. That may prevent proper floatation in order to fully close the fuel flow once the bowl is full allowing the fuel to continue flowing.

If the machine is running okay before this happens, lift the seat and side covers , check for loose wires and plugs. 99 percent of time this is the problem is evreything seems to be working and it suddenly dies as your riding it.

Test the compression using a compression tester. My guess a valve is stuck closed. A compression test will show this.

https://www.google.com/search?q=Polaris+wiring+diagram&tbm=isch&source=univ&sa=X&ved=2ahUKEwjDp-_P7qbhAhXmUt8KHYz8B5UQsAR6BAgHEAE&biw=1600&bih=789

Look on the steering crown on the frame.

Ive attached a video, but you can do this mechanically by adjusting your throttle linkage(but it may not be enough). I'd suggest making a "stop" or a mechanism to physically stop the throttle from opening up on the engine end at the carburetor or throttle body. You must add something to interfere with your engine being able to "open up", I'd reduce it so that it only opens up 15%-20% which will severely limit performance. Another option is to add an aftermarket Rev Limiter like a MSD unit, or find any rev limiter compatible with CDI ignition and a Single Cylinder, that'll work and you can limit it to whatever rpm you prefer at the turn of a dial! I had to do this to a motorcycle and a drag car and used a simple adjustable rev limiter to keep others from mulling themselves or blowing my motor up!

check wiring under vehicle going to diff for breaks

Spray some starter fluid into the throttle body. If it starts then it is a fuel problem. Check the fuses for injection operations. Here is a video that might help. https://www.youtube.com/watch?v=3rhe2BzIOLA

check the plug on the rear axle for the tuff mode! make sure its plugged in

Because big break ,is possible that the piston rings to be stuck on their channels, due to burnt oil deposited in operation, if one of the many km as possible and wear rings, cylinder liner etc. You need a solution to wash and degrease the segments, pour it into a cylinder, before you pull out the spark plug, which you search if it is wet and smells gasoline, it is a sign that it is fed correctly with gasoline ... do not overdo it with the washing solution, a 50 miles is enough. Close gasoline, if you can not remove the hose coming from the pump, to the engine to avoid aspiration of gasoline while washing the cylinder, and do some startup maneuvers, plug the spark plug hole with a finger towel, thus preventing immediate evacuation of the cleaning solution and thus wash the cylinder and clean the segments, and observe the compression. After a few such maneuvers, all the cleaning solution will be discharged from the cylinder, now put a clean cloth in the spark plug hole, that the cloth no longer has anything wet on it, it is a sign that there is no cleansing liquid in the cylinder. repeat the idle operation to make sure it's airy, fit a good spark plug, put the gas hose back on and have to start. Preventive, check the air path, not clogged, clogged air filter, etc. Good luck!

Check the electrical connectors especially at the ECM.

Check battery connections for corrosion &check voltage.