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Jason_Sprouse3

Arctic cat 400 4x4 automatic

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I have 2008 arctic cat 400 4x4 automatic.  It has over 160lb of compression. It's getting fuel, and has a bright blue spark. The spark is constant not a hit and miss. But for the life of me I can't get it to start. It tries, but won't run. All help and advice would be greatly appreciated. Thank you all in advance. 

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Could be bad gas from sitting several months, or the fuel pump, which is a small diaphragm-type under the seat, or fuel filter. Could be a really badly clogged air filter. I've had to service all these on my AC 500.

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I let my Polaris sit too long and the fuel filter gummed up.

I put some Sea Foam in the gas tank and in the carb, let it set overnight and it fired right up the next day.

it was a gravity feed fuel system though.....no fuel pump.

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Gas gas gas.  Anything with ethanol in it starts breaking down within 2 weeks.  Never ever run that crap in small engines. Rinse the tank and change the filter and put some fresh 91 octane pure gas in there and it’ll touch right off. 

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