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06-19-2011, 02:42 PM
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Junior Member
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Member #2263
Join Date: Dec 2009
Location: mid-Michigan
Posts: 12
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New guy..engine start problem
Hey guys. New here. I have a 2008 Sportsman 500 EFI that recently Im having trouble getting started. I bought it in 2009 new to use for ice fishing, so I currently only have around 100 miles on it. At first, when I turned the key to the "on" position, the computers would kick on like normal, but then it would make a slight clicking noise, then fire up normally. Now, when I go to start it, it makes more of that clicking noise and either might or might not start. Sometimes, turning to the "on" position it might not do anything.
Whats going on? Im not very knowledgeable on the "guts" of the 4 wheeler, but hopefully will as time goes on. Is my battery getting bad? Loose connection possibly, and if so, what could it be? I managed to get it running today, and every time I went to start it later it worked fine, but its pretty much after its been sitting for a few days.
Also, just a quick question on the fan/cooling system. Is the fan supposed to come on at all times the engine is running, or only when it gets too hot. And I noticed when my fan WASNT running, the coolant wasnt flowing either. Does the coolant only flow when the fan is running?
Thanks for the help guys, I know i sound like a rookie. I just want to keep my machine running as good as I can.
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06-19-2011, 02:58 PM
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Polaris ATV Legend
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Member #6579
Join Date: Aug 2010
Location: Central Connecticut
Posts: 3,114
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Good afternoon,
The starring troubles are very likely the battery as you suspect. Get a charger on it and let it charge at the very least overnight and see what you get. (BTW, Charging longer on lower amperage is better.)
Get yourself some Sea Foam and use it!! The other issues with many machines if the fuel system, we don't drive them all the time so they sit more than they run, this spells problems for the fuel system. ESPECIALLY with the new shit fuels today. Sea Foam will correct the problem and keep it from happening again.
The fan should only run when the engine reaches a high(ER) temperature. It should NOT be running all the time.
CW
__________________
Mine
2007 Polaris Sportsman 700 EFI W/ 26" Maxxis Big Horns, Crusher Black alloy rims, EPI clutch kit, EPI HD springs F&R, Moose front/Ricochet rear CV guards, Kolpin Aux 4 Gal fuel can, UNI air filter, Moose camo tank bag, F&R rack extensions, Lock-N-Ride lo & hi windshields, Acerbis hand guards, CUSTOM mirrors and a 3000# Gorilla winch, W/Am-steel blue synthetic line, running thru a winch saver and an aluminum fairleed.
NEW: Thor's foot pegs and CUSTOM rear rack support frame and WES seat box. CUSTOM front and rear mud flaps.
Momma's
2000 Polaris Trail Boss 325 W/23" Wooly Bogger rear tires, Powermadd hand guards, UNI filter, Big Dawg rear and side bags, Polaris Mirrors, Kolpin grips, Quad Boss tank bag, Gas tank fuel gauge, Custom front 12v power port, Dual 1.5 Gal Kolpin fuel cans, mounted in custom rear facing mounts and a 2000# Super-Winch in a custom built mount W/winch saver.
CALL Thor @ www.TheATVSuperStore.com - 815-321-3888
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06-19-2011, 05:14 PM
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Junior Member
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Member #2263
Join Date: Dec 2009
Location: mid-Michigan
Posts: 12
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Thanks CW. So I'm assuming that the coolant only circulates when the fan is running?
I'll have to try some Sea Foam.
The weird thing is that when I had my key turned to "on" with nothing happening, and when I started wiggling some wires it all of a sudden kicked on.....BUT still "clicked" when I try starting it.
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06-19-2011, 07:55 PM
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Extreme ATV Enthusiast
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Member #4155
Join Date: Apr 2010
Location: Post Falls, ID
Posts: 375
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Coolant circulation isn't related to fan operation. Coolant is circulated by a mechanical pump that operates when the engine is running, so coolant should always be flowing. Early two-strokers didn't have thermostats, but later models (4-strokers) do. As CS says, the fan only operates when the coolant reaches a pre-set (hot) temperature.
__________________
 MarkC - Spokane, WA USA
"Long live the orphaned Hawkeyes and mid-size Sportsmans"
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06-20-2011, 03:53 AM
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Polaris ATV Legend
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Member #11982
Join Date: Feb 2011
Location: Douglas Wyo
Posts: 1,954
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check and clean connections at battery then take wires off selenoid n check nuts under wires for tightness then clean and replace wires
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06-20-2011, 04:40 AM
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Junior Member
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Member #2263
Join Date: Dec 2009
Location: mid-Michigan
Posts: 12
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Ok, thanks guys. I'll have to try that.
Ya i was just curious about the coolant because as my machine was running I got off and looked under it and it looked like the coolant was just sitting there.
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06-20-2011, 03:40 PM
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ATV Enthusiast
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Member #15104
Join Date: May 2011
Location: ct
Posts: 55
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thats your overflow jug your probably looking at just like your car has you wont see it move the level will rise when its hot and lower when it cools down if the jug is empty then you have a leak
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