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Discussion Starter · #1 ·
i just bought a 400ex and it was riding good but it would like to die in a higher gear or when i pull in the clutch to shift. the other day it died in 5th gear and now it wont start back up. the strange thing is that there is a loud knock when i try to start it but only when the sparks on. i was thinkin either a broken valve or my magneto pickup is hanging off. i just need some opinions
 

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Welcome to the forums, I guess the first thing I would check is the valve clearance, pull the plug and let us know what it looks like (color) Black? oily? white? tan...ect.ect
 

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Out of time.
 

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I wonder if the tensioner is shot allowing it to jump time???
 

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I wonder if the tensioner is shot allowing it to jump time???
Quite possible. Im sure hope you didn't bend anything if it did.
 

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Welcome to the forums.
 
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