2011 Polaris Sportsman 800 EFI - Speedo\ No Info - Polaris ATV Forum
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post #1 of 8 (permalink) Old 05-24-2019, 06:12 PM Thread Starter
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Exclamation 2011 Polaris Sportsman 800 EFI - Speedo\ No Info

Greetings folks!

I have been trolling this forum for quite a few years and it has been quite useful. However after all of these years of lurking and never registering I find myself here.

I have a 2011 Polaris Sportsman 800 EFI. After the speedo died after always being full of moisture, I took it apart. Attempted to clean the corrosion and replace individual components as I saw able to do so. ( I am IT with a nerdy interest in the electrical..however I am not saavy like you polaris people! )
Anyhow. The damage was far more severe then I was interested in attempting any further.

So about this same time. I did what I should have done a long time ago, and rip out that terrible fuseblock and put multiple inline fuses, ( sealed of course ) instead. Beautiful.
Everything works great.
Back to speedo.

I took a meter to it, And I was getting power all over the harness. So that was good. So with a firm See Ya! I took out the old speedo.
Now. I have an event coming up ( We dont get out much ) And gosh darn it, I would sure like to have some AWD?

I have read many posts about bypassing the speedo to at least have AWD function...however none of the info seems to apply to a 2011 800 EFI.
I have found nothing, and no wires even similar to older models suggested.

The back of my original speedo, the harness has your standard long socket, and then a 3 wire plugin.
I recently was just given a new 2014 Polaris sportsman 550 speedo. Which is the exact shape, and has the long socket plug...but no three wire plug.
I thought the hell with it, Im going to try it.

...Of course it did not work. Did not light up. Nothing.

I can not seem to find what that three wire plug is for,
Nor what wires that I can ground out to at least give me AWD until I break and buy a new speedo that was for the bike. ( Which Im also having a nightmare of finding. )

So after that long winded statement:

1. Can I make that 2014 speedo work in my favor?
2. Can I bypass the speedo to at least get my AWD to work until I break down and replace the unit?

Under the hood, the two tiny red wires that combined at the fuseblock, and a line from the power is currently connected together to an inline fuse.

Help me PolarisATVforums, you are my only hope!
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post #2 of 8 (permalink) Old 05-24-2019, 06:49 PM
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The three wire plug on your old speedo is for the Hall effect/speed sensor located on the right front wheel of your 800. The 550 uses a speed sensor in the gearcase cover. Number 22 in the attached pic.
The AWD function is tied into and enabled within certain speed, RPM and gear position parameters. That's why the speedo is a necessary part of the AWD system. You being an electrical guy might be able to figure it out with a good wiring diagram. I can usually figure out electrical stuff with enough time, patience and persistence but I'm no electrical engineer by any stretch. I'm sure its probably POSSIBLE to make it work but wouldn't have much of a clue how. I might could figure it out if I had it hands-on in my garage but don't know.
You might shout out to latebird as he's the resident electrical guru on here. He could figure it out if anybody can.
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post #3 of 8 (permalink) Old 05-24-2019, 07:05 PM
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Here's a link to a good used one from Powersports Nation for about 1/2 price of new. They are the number one source for good used parts and stand behind their parts 100% with free, no-hassel replacement should you get a defective part. I've done a lot of business with them and have never been disappointed. You should be aware that mileage is stored onboard the speedo so a used one will have the donor machine's mileage/hours on it. A new speedo will have no mileage or hours.

https://www.ebay.com/itm/Polaris-Spo...21qE#vi-ilComp
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post #4 of 8 (permalink) Old 05-24-2019, 08:02 PM
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Just got a email from Powersports Nation for 20% off Memorial Day sale through midnight Monday.
Use promo code: VET20
I'm not sure if that applies to ebay listings so you may have to go to the website to use the promo.
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post #5 of 8 (permalink) Old 05-25-2019, 06:22 AM
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As long as a speedo is not plugged into the wiring harness - connect 12v positive to the red/wht wire and negative to the brown wire with the white stripe - your AWD will then turn on and off with the AWD switch - test this before finalizing connections using a 5 amp in line fuse - you can go as high as a 20 amp fuse if necessary, but if the connection blows a 20 amp fuse - STOP and let me know so I can re-figure this.

The AWD was connected through the speedo and many things happen in AWD - the AWD indicator illuminated, the AWD would not engage if engine RPM was above 3500 and when in reverse, AWD would not work unless the override button was pushed.

Without the speedo and wires attached as described AWD will be active all the time including in reverse. If you install a speedo, disconnect the bypass wires to prevent damaging the speedo.

2006 Trailboss 330
2002 Sportsman 90
2005 TRX400EX (FOR SALE)
2003 LT-Z400 (needs engine work & is for sale)
2004 CRF250X
1971 Triumph 650 Bonneville (has 5 original miles)
1972 Triumph 650 Bonneville (undergoing restoration)
1979 Honda CBX (6 cylinder)
1970 Kawasaki G3SS 90cc Bushmaster
1976 Suzuki RE5 Rotary (not running & FOR SALE)
1981 Kawasaki KZ305-A
1981 Suzuki GS450T (undergoing repair & will be for sale when done)
1982 Kawasaki KZ750-H (FOR SALE)
1989 Honda VT1100C
2007 Vectrix VCTX Electric Scooter
1965 Montgomery Ward 3 1/2 HP Tecumseh Mini Bike
1970 Triumph T25 250cc Trailblazer
1968 Triumph 250cc Flat Tracker

Shop Owner and Mechanic with over 50 years experience
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post #6 of 8 (permalink) Old 05-25-2019, 06:49 AM Thread Starter
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Thank you.

I greatly appreciate you guys taking the time to reply to my post. After consideration I determined that trying to make a 2014 unit work on my 2011 was a waste of time (and a folly). So after tracing wires and putting the meter to everything, I ended up snipping the wire in pin position 16 on the ECM cable at the back of the speedo, and running a new ground to it. Obviously the cluster does not work, but I can operate the AWD from the switch.

While this has temporarily solved my issue, I am still curious about a few things however.
Even if my cluster was toast.. Should it not perhaps still kick on its back lights when power is applied? ( The back lighting on the guage itself ) even if the functions did not function?
Even plugging in the 2014 cluster, while it was missing the 3 wire sensor plug, should it have also at least kicked on its lights, or shown some sign of life, even if it did not function as intended?

I know I am missing something simple here. Just have not figured it out.

Again. Thanks for jumping in folks, I do appreciate it!
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post #7 of 8 (permalink) Old 05-25-2019, 07:22 AM
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The speedo you need was used on the following models:

2010 SPORTSMAN TOURING 500 HO (A10DH50AX/AZ)
2011 HAWKEYE 400 HO 2X4 (A11MB46FZ)
2011 SPORTSMAN 400 HO 4X4 (A11MH46AX/AZ)
2011 SPORTSMAN 500 HO (A11MH50AX/AZ)
2011 SPORTSMAN 800 EFI (A11MH76AX/AZ)
2011 SPORTSMAN TOURING 500 HO (A11DH50AX/AZ)
2012 HAWKEYE 400 HO 2X4 (A12MB46FZ)
2012 SPORTSMAN 400 HO 4X4 (A12MH46AF/AX/AZ)
2012 SPORTSMAN 500 HO (A12MH50AD/AO/AQ/AX/AZ)
2012 SPORTSMAN 800 EFI (A12MH76AD/AX/AZ)
2012 SPORTSMAN FOREST 800 (A12MH76FF)
2012 SPORTSMAN TOURING 500 HO (A12DH50AX/AZ)

2006 Trailboss 330
2002 Sportsman 90
2005 TRX400EX (FOR SALE)
2003 LT-Z400 (needs engine work & is for sale)
2004 CRF250X
1971 Triumph 650 Bonneville (has 5 original miles)
1972 Triumph 650 Bonneville (undergoing restoration)
1979 Honda CBX (6 cylinder)
1970 Kawasaki G3SS 90cc Bushmaster
1976 Suzuki RE5 Rotary (not running & FOR SALE)
1981 Kawasaki KZ305-A
1981 Suzuki GS450T (undergoing repair & will be for sale when done)
1982 Kawasaki KZ750-H (FOR SALE)
1989 Honda VT1100C
2007 Vectrix VCTX Electric Scooter
1965 Montgomery Ward 3 1/2 HP Tecumseh Mini Bike
1970 Triumph T25 250cc Trailblazer
1968 Triumph 250cc Flat Tracker

Shop Owner and Mechanic with over 50 years experience
latebird is online now  
post #8 of 8 (permalink) Old 05-25-2019, 05:06 PM
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1/2 price for a known good speedo from PSN with warranty is probably about as good as you're gonna find to actually fix the machine. The speedo's usually fail only because somebody though it was a good idea to spray the mud off with a high pressure washer or the machine has set outside uncovered in the rain, snow and ice. Very rare in my experience to have one fail otherwise.
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