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Title: Raptor 660 Valve Lash adjustment? Post by: Raptor660R on May 09, 2006, 08:50:36 AM I believe my valves on my 02' raptor 660 need to be adjusted. Do i just use a feeler guage and put them to spec's like on a car or is there and special thing need to be done? I figured I would ask before i break something!
Title: Re: Raptor 660 Valve Lash adjustment? Post by: Yamaha72 on May 09, 2006, 09:06:42 PM Same principle's as a automobile's motor, using a feeler guage. Check for the clearances in the Yamaha Shop manual though. I just did mine, pretty easy but it has to be spot-on...
Title: Re: Raptor 660 Valve Lash adjustment? Post by: Raptor660R on May 10, 2006, 11:12:05 PM when you did your's was it pretty loose or tight and did you notice a difference in your bike afterwards?
Title: Re: Raptor 660 Valve Lash adjustment? Post by: Yamaha72 on May 11, 2006, 03:56:05 PM They were tight, and yes I did happen to notice a difference on mine when they were adjusted.
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