20 Most Recent Polaris 2010 Sportsman 400 H.O - Page 3 Questions & Answers

That is a possibility, if it is fuel injected there is a minimum pressure required for it to run. A fule rail gauge is not very expensive and you can find fuel pump testing on Utube.

ATVs | Answered on May 25, 2020

This site has the answer to get you youe year model using the vin #.

ATVs | Answered on May 20, 2020

On the left hand side of the machine directly under the seat area, you will find the coil. The thick wire facing toward the front of the machine will lead you to the spark plug. See pictures of coil attached.

ATVs | Answered on May 16, 2020

First when it dies just jiggle the ignition key a little bit. You may have an ignition switch loosing connection. Also check the connections to the ignition module to make sure they are tight and dry. Also check inside the tank for any foreign material that can plug the fuel opening in the tank. When the engine dies the blockage floats away. I have also seen loose connections at the coil on some atvs.

ATVs | Answered on May 14, 2020

no year given generic answer- majority of ATV models from 1985 through model year 2014 have a battery located under the left rear fender. and a fuse inline with the positive terminal

ATVs | Answered on Apr 20, 2020



ATVs | Answered on Apr 13, 2020

What was wrong with the old carburetor?? I have been working on motorcycles and ATV's for 40+ years... only replaced 5 carburetors..they were broken/damaged by the owner trying to "fix them" or corrosion damage from leaving gas in them for years...
It still sounds like you have a fuel delivery issue...check all your hoses..
get one of these... it will serve you well ...

Polaris atv manuals

Polaris ATV repair manuals

ATVs | Answered on Mar 23, 2020

Technically yes you can, HOWEVER!! The 23x8's are taller, thinner tyres so they might affect your speedo reading and handling if they are not a standard Polaris size. The front end will also ride a tiny bit higher than the rear end. If you haven't got the original handbook try contacting Polaris directly or a dealer with your vehicles details and ask them what sizes are recommended for your ATV.
ATV tyre sizes translate as follows... a 23x8-10 tyre will be-
= 23 inches in diameter measured all the way across the widest part of the whole tyre.
= 8 inches across the width of the tread of the tyre.
= 10 inch diameter of the actual wheel rim.
22x11-10 is 22 inches tall, 11 inches wide on a 10 inch rim.
23x8-10 is 23 inches tall, 8 inches wide on a 10 inch rim.

ATVs | Answered on Mar 19, 2020

What sort of noise was it? Does the noise change with the throttle or with road speed?
First check your oil levels. I'm not sure if the prowler engine shares engine oil with the gearbox or is a separate oil system. A dry gearbox can make a lot of noise AND do a lot of damage.
If the noise changes with the throttle, ( not moving and revving the engine), it could be engine issues. If the noise only happens when your moving it could be gearbox or the drive parts to the wheels.

ATVs | Answered on Mar 19, 2020


You should be able to replace the timing chain while the engine is on it as long as there is nothing in your way. Make sure you have enough clearance so you can work, and that you can remove the sprockets(if needed) and the old chain first. Be careful not to get too much dirt on the new chain.

ATVs | Answered on Mar 07, 2020


Are you able to jack it up and turn the back tires by hand? If you can't check and see if the brake cable is correct and isn't too tight? But it could also be bad brakes, not enough brake fluid, or the biggest problem could be a bad brake master cylinder..

ATVs | Answered on Mar 07, 2020


Are you getting any error messages?? Have your tried swapping the battery? Have you tired using a jumper pack to try and start it?

ATVs | Answered on Mar 07, 2020

Hi there,

Have you check the valves and the valve gaps?? Sometimes but not always having the wrong valve gaps can cause backfires. Have you also tried tweaking the carburetor to try and improve the idle??

ATVs | Answered on Mar 07, 2020

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