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How do I remove the gas tank on 2004 polaris sportsman 400 atv.

I'm having starting problems and one suggestion was a bad spark plug. I was told the easiest way to get at it would be to remove gas tank.

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Ted Maxwell

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Posted on Jan 22, 2016

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1997 Polaris Sportsman 400. Need fuel system diagram listing filters. I have drained old gas, changed spark plug. Do I need to remove carb and clean? Help or suggestions are appreciated!! Thanks,


You might try to ask someone to help on the ATV web site below:

https://atvconnection.com/forums/polaris/330956-year-my-sportsman-400-4x4-1997-a.html

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Jun 28, 2013 | Polaris 2004 Sportsman 400

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I have a polaris 400 sportsman atv. I haven't started it in 2 plus years, the battery is fully charged, it will not start. I put some gas in the tank.


you probably dont have a fuel pump issue, atv's after sitting have a problem of not starting due to carb gumming up. if its fuel injected, then i would say poss fuel pump but if not, the carb gummed is more than likey the issue.

If you need further help, reach me via phone at https://www.6ya.com/expert/allen_b068623c5003aa4b

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1996 Polaris Sportsman 400 Will Not Start


If your atv has been sitting this long, the carb is probably stopped up internally... take the carb to a qualified professional and have it cleaned and set...(take a few pictures so you know where all the hoses re-attach)

ALL it takes for an engine to run is:
1. A timed spark
2. Adequate compression
3. Proper fuel/air ratio delivered

Aug 12, 2017 | Polaris ATV

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