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post #1 of 7 (permalink) Old 02-25-2018, 01:03 PM Thread Starter
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570 starting issue

Hey everyone. My 570 sometimes will stop turning over when it builds up compression and I have to "jog" the key 5 or 6 times to make it finish cranking over. Original battery(2015), topped off with distilled water but still does it occasionally. I'm thinking of upgrading the battery to something with more CCA. here's a video from YouTube of what is happening. Let me know what you guys think

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post #2 of 7 (permalink) Old 02-25-2018, 01:13 PM
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Hmm...Could be battery or starter. You can load test the battery at most auto parts stores.
Have you checked charging?
Should have around 14.5 at 2500 RPM.
You can test starter by using booster cables to put 12v directly to the terminal.
If all is good with battery and starter, you may have to look at the decompression assembly.

Last edited by polman500; 02-25-2018 at 01:19 PM.
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post #3 of 7 (permalink) Old 02-25-2018, 02:04 PM
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That's going to be battery, make sure the battery cable ends are clean. upgrade to an AGM battery.

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post #4 of 7 (permalink) Old 02-26-2018, 07:01 AM
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Try holding the throttle wide open, then cranking and see if that makes it crank over better - if not, new battery
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post #5 of 7 (permalink) Old 02-26-2018, 09:18 AM
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Believe it or not, the polaris tech at my dealer tells me that this is "a 570 thing." When the engine stops in the compression stroke near top dead center, the battery doesn't have enough amps to muscle through the compression.

I went and bought a new sealed battery (better CCA, too) for my new wheeler with only 200 something miles on it, and when I got to the shop the old battery tested fine and when I expressed my sincere disbelief at the entire thing, the tech pulled out that gemstone for me.

I told him, and anyone at Polaris that cares to listen that hearing that about my $10K sportsman was not very comforting.

Fast forward to a couple weeks ago, and it happened to me again while out in the woods, a long walk to the nearest road. I bumped it a half dozen times until it finally fired and boy was I worried. Has been fine since, though. I rode it the past couple weekends with no issue.


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Last edited by DOAinNY; 02-26-2018 at 09:21 AM.
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post #6 of 7 (permalink) Old 02-26-2018, 09:19 AM
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Quote:
Originally Posted by latebird View Post
Try holding the throttle wide open, then cranking and see if that makes it crank over better - if not, new battery
Even with electronic fuel injection? Is this something that the computer reads?


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post #7 of 7 (permalink) Old 02-26-2018, 02:11 PM
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Quote:
Originally Posted by DOAinNY View Post
Quote:
Originally Posted by latebird View Post
Try holding the throttle wide open, then cranking and see if that makes it crank over better - if not, new battery
Even with electronic fuel injection? Is this something that the computer reads?
computer will not read that, not sure if they have crank position failure code but it is possible for that to come up it may sense to quick of count if it pops backwards.

2016 sportsman 570 Orange Burst
3500 winch
KFI winch mount
Dice Gear Shifter Knob
LED ground graphics
ACERIB X PRO Handguards
AGM battery upgrade
2014 sportsman 400 HO blue fire
polaris hand guards
polaris mid windshield black
polaris rear cargo box
KFI winch mount
Badlands 2500 winch
2001 Honda 400EX
2003 Yamaha blaster
2001 Yamaha bear tracker
1988 yamaha YFM 225 lost in sandy
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