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post #1 of 4 (permalink) Old 07-11-2012, 11:17 AM Thread Starter
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Mark 800's Avatar
Join Date: Apr 2011
Location: Michigan
Posts: 16
Locking front differential?

I have a 2007 800 Sportsman that I bought a couple years ago. GREAT running machine and Iíve put a bunch of hours on it riding trails, swamp and working on the farm. Itís always been tough to turn. I didnít realize how tough it was until I started riding other machines. I bought my wife a 450 Yamaha Kodiak and it has a ďlocking front differentialĒ option. It turns on a dime when that option isnít engaged. Iíve rode my buddyís 650 Arctic Cat and it turns much tighter and with less effort than mine (although my ride is MUCH better!) I didnít get an ownerís guide, but did purchase a shop manual. Itís home and Iím not. Iím sitting here wondering if Iím missing an easy option to turn off the front locking differential. Does anyone know if I have that option hiding in the buttons?
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post #2 of 4 (permalink) Old 07-11-2012, 11:25 AM
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Location: toronto
Posts: 25
I don't believe there is a locking diff option on any year sportsman. Maybe your front diff is all messed up or your speedo is goin. I believe the speedo controls awd.

2004.5 Sportsman 500 HO
SS 108's wrapped in 26" XTR'S
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post #3 of 4 (permalink) Old 07-11-2012, 12:50 PM
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Location: Washington State
Posts: 6,903
Your AWD is not working properly. Sounds like it is always engaged. Your machine should stay disengaged until the rear wheels slip. Meaning, in AWD, it should turn even easier the the "locking front diff" option because when the front diff is unlocked, it's still in 3wd. It's an inferior system to what Polaris uses.

You need to chase down the reason why it sounds like your 4x4 isn't disengaging.
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post #4 of 4 (permalink) Old 07-11-2012, 01:03 PM
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Join Date: Oct 2011
Location: Minneapolis, MN
Posts: 1,630
I blew the rear seal on my front diff, so after a while the fluid would leak out and it would fill with dirt and mud, and then when I would take off it would just engage the AWD at any acceleration. Once I replace the front diff it was all good (got it from Babbits online for 40% less than my dealer was trying to charge) So I would change your fluid and make sure it looks good and clean, if it does then you may have other issues, if not change it out (not cheap). I do recall my 800 took elbow grease turning too but on the trails with AWD on or off there was not much difference...


2012 Polaris 850 XP HO w/EPS
-28" Terminators
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-Quadrax Rear seat w/foot rest kit from ATVSUPERSTORE - Square Tube
Old Machines:
2006 Sportsman 800 EFI, 2005 Sportsman 700 Carb, 2004 Sportsman 500HO Carb, 2000 Sportsman 500 Carb
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