Utility ATV repair and maintenance & Troubleshooting Place your Utility ATV Repair and Maintenance questions/thoughts here... *not performance*

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Old 09-28-2012, 08:51 PM   #1
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05 arctic cat 500 hard start when cold

Hi all..

It takes about 20-25 seconds of cranking and pumping when cold to start, then runs at high idle until warm, and runs and starts perfectly.

Once it starts once, it will start on 1st crank all day.

Any ideas?
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Old 09-28-2012, 10:29 PM   #2
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Sounds like the elec. choke is not working?
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Old 09-28-2012, 10:31 PM   #3
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You also might want to clean the carb really good.
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Old 09-28-2012, 10:38 PM   #4
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Thanks guys! I'll give them both a shot.
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Old 09-28-2012, 11:07 PM   #5
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Give it two shots with the primer before starting cold
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Old 09-29-2012, 07:42 AM   #6
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Primer?
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Old 09-29-2012, 08:10 AM   #7
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Have you read your owners manual? There is a manual primer on the bottom of your carb for cold starts or starting after sitting for a while. It will fire right up even at -40c
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It's mind over matter,If you don't mind,
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Old 09-29-2012, 10:09 AM   #8
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Ahh.. I bought it used .. No owners manual

Thanks so much!
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Old 09-29-2012, 03:50 PM   #9
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It's not on the underside of the seat in a little pocket? If not your dealer will get you one or download this free service manual www.mymowerparts.com
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It's mind over matter,If you don't mind,
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Old 09-29-2012, 04:37 PM   #10
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 Quote: Originally Posted by solerunner View Post
Hi all..

It takes about 20-25 seconds of cranking and pumping when cold to start, then runs at high idle until warm, and runs and starts perfectly.

Once it starts once, it will start on 1st crank all day.

Any ideas?
Yup find and use the primer. PS There is no acceleration pump on the carb so pumping the throttle lever will have no affect towards starting. Keeping the throttle closed while cranking it over will build more manifold vacuum and draw the gas in sooner than it will if you are pumping the throttle.

Also sometimes opening the PMS screw a 1/4 turn or so will help in starting a cold engine. Not knowing the miles you have on it it may need the valve clearance adjusted. Tight valves can lead to a harder to start then normal engine. A new spark plug nay help also.
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Last edited by Wyo_H1_Cat; 09-29-2012 at 04:41 PM.
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