20 Most Recent Polaris ATV - Page 8 Questions & Answers

Contamination of the spark plugs could be engine oil passing the piston rings or valve guides or excess fuel or fuel being delivered in droplets that are too large to burn efficiently.

Close inspection of the fouled plugs should provide clues to the type of fouling. If there are no obvious faults perhaps using a hotter grade of plug will cure the problem.

Polaris ATV | Answered on Jan 29, 2019

Should be under the tank near the rear. Just follow the fuel lines. The fuel valve should have 3 fuel ports.

Polaris ATV | Answered on Jan 27, 2019

make sure the shift rod is not bent and is fully engaging the forward gear, may just need adjustment.

Polaris ATV | Answered on Jan 18, 2019

tap starter with a hammer slightly if it tries to start replace brushes or whole starter

Polaris ATV | Answered on Jan 18, 2019

Bad starter,replaced one on my grand sons not long ago,battery was weak,got it charged,still would not start,took starter off,it was locked up,they ordered one from Ebay,I installed,started right up,here's a site for a new starter,you can take off and take to Autozone to test to make sure.Also check the cable that goes from starter to the other connection.https://www.ebay.com/itm/STARTER-FOR-POLARIS-MAGNUM-425-4X4-2X4-1995-1996-1997-1998/262663578665?epid=8008132122&hash=item3d27f82429:rk:1:pf:0

Polaris ATV | Answered on Jan 15, 2019

Check the stator which is in on the lower/left side of the engine opposite the belt, also triple check all wiring, it’s got to be something simple.

Polaris ATV | Answered on Jan 14, 2019

If you ran the quad with a dead or no battery, all the light bulbs could have blown from high voltage.

Polaris ATV | Answered on Jan 11, 2019

"Throttle Body Control - Adaptation Aborted, Condition Exists"
Output of your ETC Throttle (Electronic Throttle Control) is out of range, possibly a bad connection from the Throttle Body to the Electronic Control Unit

Polaris ATV | Answered on Jan 11, 2019

you are going to have to obtain an engine manual to show you how to remove the balancer cover the balancer usually is located on the left side of the engine it will have timing marks on the side of the case and a timing mark on the balancer note I would check the valve lash and see if it is adjustable b4 messing with the timing. your valve lash could be out severely and all you will need to do is adjust it

Polaris ATV | Answered on Jan 11, 2019


Polaris ATV | Answered on Jan 08, 2019

The best try to find out the code, then start to do something. Get scanner can use ask a friend.

Polaris ATV | Answered on Jan 08, 2019

Trying to get the lights working on my 1997 2×4 400 polaris

Polaris ATV | Answered on Jan 06, 2019

Throttle stop screw.
On the left side of the vehicle, looking in at the carburetor, notice a screw pointing straight down near the bottom of the carb, slightly forward.
Turn the throttle stop screw clockwise to increase idle, counterclockwise to decrease idle. It is best to adjust the idle while at operating temperature, but be careful, it's hot in there! just bring it up until it smooths out.
Do not overcompensate to mask something more serious like a cracked or weathered intake manifold.
It is not an issue of 'If' the intake will fail, It is 'When' it will fail. Just fix it before it fails you at a less convenient time. Not good on a trip I can tell you that.

Polaris ATV | Answered on Jan 03, 2019

"adaptive fuel correction too rich". Could be your O2 sensor.

Polaris ATV | Answered on Jan 03, 2019

The fuel pump should not run continually when the motor is not running. I am assuming you mean when you first turn the key on, not when the motor is running as you would not hear it at all over the engine noise. (and would not run)
When you turn the key on, the fuel pump should still have retained enough pressure to only require a quick blip or two from the pump. You may just not hear it possibly.
But if it is not functioning correctly, read on.
First, the fuel pump is non-serviceable. It also includes the fuel sender and pressure regulator.
It gets better.
The fuel pump is an integral part of the fuel tank meaning you must replace the entire tank to replace a faulty fuel pump.
You can perform a fuel pressure test if it powers up, if not perform a continuity test. There is also a voltage test to check. If all the tests check out ok, but there is still a problem, take your machine to an authorized Polaris dealership for ECU testing.

Polaris ATV | Answered on Jan 03, 2019

Raze the track off the ground , there is a adjustment bolt on the chain case losing the check nut and turn the bolt by hand until tight, then turn the track and recheck, you might have to take the exhaust off to get at it, If i was you i would take the chain case cover off clean and every thing and put new oil in, most people don't even check the oil and then blow the chain, the oil thins out in the summer and drains out a littly each year until theres none.

Polaris ATV | Answered on Jan 03, 2019

Old fuel, dirty carb jets. Low fuel level in carb. Has it been sitting up? Check air filter and plug.

Polaris ATV | Answered on Jan 03, 2019

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