Valve adjustment on 400 - ArcticChat.com - Arctic Cat Forum

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post #1 of 4 Old 06-25-2009, 10:12 PM Thread Starter
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ATV: 2003 400i auto
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I was going to adjust my valves on my 400, but having trouble telling if I am on the compression stroke. There seems like there is no slack no matter what. Could it be my valves are just way to tight???? Can't get anything to slide in.

If anyone has some ideas or advice that would be great.

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post #2 of 4 Old 06-25-2009, 10:22 PM
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when it comes up on exhaust stroke exhaust valves will be open, than intakes will open as it goes down, then as they shut and it comes up with both valves closed thats the compression stroke. you can tell by watching where the valves are as you turn it, sounds like there pretty tight.

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post #3 of 4 Old 06-25-2009, 10:51 PM
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post #4 of 4 Old 06-26-2009, 11:41 PM
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Check this thread out, procedure is nearly identical on the 400 i think.

http://www.arcticchat.com/forums/index.php...1&hl=Valves

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