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04' YFZ 450 Timing help Please!

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Old Jan 11, 2008 | 01:22 AM
  #1  
TurboLTR's Avatar
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Default 04' YFZ 450 Timing help Please!

So my little sisters timing was off due to bad tensioner. I put the cam sprockets back where they should be at TDC. It wont start. I checked the valve clearence and they are to tight. Does that mean it is not starting because the valves are open a little during the compression stroke? if so I just need to replace the shims. thanks for any advice from those who have been there lol PS yes its getting fuel and spark. and I know how the cam sprockets go. thanks!
 
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Old Jan 11, 2008 | 12:18 PM
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YurFatMom's Avatar
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Default 04' YFZ 450 Timing help Please!

Did you have the flywheel marks lined up at the same time that you had the cam marks lined up?
 
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Old Jan 12, 2008 | 02:39 AM
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Default 04' YFZ 450 Timing help Please!

Ya, TDC was lined up at the time the cam sprocket marks were lined up.
 
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Old Jan 13, 2008 | 01:52 AM
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TurboLTR's Avatar
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Default 04' YFZ 450 Timing help Please!

So incase anyone runs into this problem, it was the valve clearence. A little shimmin and she fired up and purrrrrd, mmmmm.
 
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Old Mar 20, 2008 | 09:17 PM
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Chawness's Avatar
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Default 04' YFZ 450 Timing help Please!

Did the valves have to much shim or not enough? Im having the same issue...
 
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