What’s the best exhaust / muffler for a 2014 Sportsman 400? I do mostly trailing riding and muddying. Seems when the exhaust is just under water a little I have to keep in the throttle due to it sound like it’s about to quit because of back pressure. Thanks

Hi,

I purchased my first atv about a week ago and its a Sportsman 850. I have about 150 miles on it and there is a significant clunking noise when using the rear brake. There is also a loud clunking noise when going down a steep hill and applying hard pressure to the hand brake.

The noise is coming from the front right of the machine, I would guess right around the area of my right foot. Its a blatantly obvious clunking/rattling. Called the dealership, they "haven’t" had similar complaints and said they’d look at it, but I just wanted to check here first.

Any ideas? I’ve read a lot on the forum about clutch noise, etc., but I’m brand new to these machines and am not familiar with different noises.

Thanks!
Phil

Hey guys I’m new to this forum and just wondering if someone has ever had the symptoms I’ve been experiencing. Or at least Point me in the right direction on the forum

The problem: while riding the quad about a month ago we rode for approximately 5 hrs and stopped for a break…during that 5 hrs everything was running perfect until we went to leave from our break. The quad started but shortly after (30 seconds) it randomly shut off. We couldn’t get it started again so we towed it home. The next day I was able to start it again but I could only Rev up to approx 3/4 throttle where it would bog out and die. I now can not fire it up again…everything on the cluster functions as it should and it still turns over no problem..I have checked the spark and it has healthy spark…also verified that the fuel pump was operating and it was. I then pulled the flash codes which turned up
41 air temp sensor high voltage
22 tps low/high
44 cps circuit fault
47 iac stepper motor open load/short to ground

I then verified that all the sensors were good which all of them tested OK…also checked the common areas where wiring problems occur and visually looked ok…checked the wiring for continuity to all the sensors which again checked out ok

Is there anything I’ve missed Right now I’m leaning towards a faulty ecm. Not sure if this is common or not and keep in mind that this quad has about 13000km on it too

Any help would be appreciated
THANKS in advance

Hi iam new to wheeling just bought a 2011 sportsman 400 ho. Just noticed the speedometer stopped working. Was wondering if anyone can tell me why?

my sons 2001 sportsman is in need of a new carb. I am looking for one that will work with it. I don’t like the electronic choke or the oil injection. I bought one from eBay and I will never do that again, huge piece of junk. So the factory carb is an mikuni am7 it’s a 19mm carb I believe polaris only part. In 03 I think it was switched to a mikuni vm16. So which brand name carb would work? I’ve seen some for sale at reasonable prices but I’m no expert by any stretch of the imagination so I would really like some help.

If you’ve installed the SuperATV EZsteer 380 kit on your Sportsman 500HO how did you mount the control module?

It won’t fit using the stock bolts on the right hand side as directed to in the instructions as the box hits the shock. Do you just drill two holes further back?

I’ve got the steering shaft installed and it was a PITA to get at the bottom bolts, patience indeed to keep from throwing wrenches!

Thanks!

Ken

If you’ve installed the SuperATV EZsteer 380 kit on your Sportsman 500HO how did you mount the control module?

It won’t fit using the stock bolts on the right hand side as directed to in the instructions as the box hits the shock. Do you just drill two holes further back?

I’ve got the steering shaft installed and it was a PITA to get at the bottom bolts, patience indeed to keep from throwing wrenches!

Thanks!

Ken

I just bought an 850 sportsman and before I pull the trigger on a lift I wanted to get input from those who already have them.

I know this is a long shot but does anyone have any pictures or can give me a description of how the combo light, on/off, and reverse speed override switch looks? I was working on my dead machine tonite and took this apart and heard a ball rattling in it. Not thinking I flipped it over. White face with electric connections came out as well as some Springs and contacts and what appears to be a detent bearing.

Would like to try to put it back together before just getting a new one.

I have a 2004 Sportsman 400 that acts like it’s possessed. I bought it new from a dealer. It has 800 miles on it, sat for two years with gas treatment in it. I took it out this year and have had stalling, missing, power loss, etc. So I did the following

removed tank, blew out screen with air
new fuel filter
new gas lines, removed and blew out all others.
new fuel pump
new air filter
new air lines to air box
new air box gasket
rebuilt the carb. using a hanes manual
new spark plug wire and spark plug
adjusted valves

I brought it to a Polaris dealer, and a former Polaris dealer and the missing, stalling, power loss continues. Does anybody have an idea what else could be wrong like electronic issues?