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2010 sportsman 550 efi delayed start

I recently picked up a 2010 sportsman 550 efi. When I got it the owner said sometimes, which on "cold" starts is always, that it takes a second to crank over. I haven't found any info on this problem.

Any feedback will be greatly appreciated.

Here is a "cold" start up. Less then 24 hour's sitting.


After it it's warm some times I get a stutter at start up


One other issue is the I have a small leak in the front diff. It doesn't appear to be any of the seals. The best I can tell is somewhere near the bottom of the diff towards the front. I only found this after seeing a small oil spot on the garage floor.


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2015 sportsman etx fluid

Hey i just bought a 2015 sportsman etx and am looking to change all the fluids can anyone tell me what the diffs take and trannsmission
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Throttle At Start Up

Have a 2010 400HO Polaris ATV which is somewhat hard to start, turns over for 3 or 4 seconds before starting in any weather. But, once started, it will start immediately next time. Changed the spark plug, no change to startup. However, when I give the ATV the slightest throttle it will start immediately. Bike only has 850 miles.

Any ideas?

The owners manual clearly states no throttle when starting electronic ignition - what's the harm?

Thanks and I'm not overly mechanical.

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2014 sportsman starter replacement

Trying to replace starter ,but the bolt holding it in is up against the frame.theres a hole in frame to remove bolt ,but it is an inch below the hole.how do I pry engine up enough to remove it without breaking anything, or do I need to remove something else?
Thanks for your help.