EVO All Evo Model Discussion

Valve seal or piston rings?

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Old Jun 19, 2020 | 03:54 PM
  #21  
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You've got good info here. One thing to remember about an EVO. One of the biggest things guys forget is they don't let it warm up, especially an EVO. I really hate to ask this but here goes. Are you running dino or synthetic? Sorry!
 
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Old Jun 19, 2020 | 05:06 PM
  #22  
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Originally Posted by Bass Player
You've got good info here. One thing to remember about an EVO. One of the biggest things guys forget is they don't let it warm up, especially an EVO. I really hate to ask this but here goes. Are you running dino or synthetic? Sorry!
I think it's synthetic. It's Drag Specialties Primary oil. I've chosen this one because it specifically say that's for a wet-type diaphragm spring clutch.

But I think I got the problem.
Check this clip.

You see that the clutch basket is moving. I don't think this is normal.
I will try to take it apart so I can hopefully find what the problem could be.

If someone has a idea, please let me know.
 
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Old Jun 20, 2020 | 09:13 AM
  #23  
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What you guys thing? Are those bearings too sloppy or still runable?
 
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Old Jun 20, 2020 | 09:24 AM
  #24  
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It may not be the bearings. I have a similar bike and when I first got it there was a similar problem. The nut that held the clutch basket to the transmission shaft had come loose. I'd check that out before anything else. Only 4 bolts to pull and easily done.
 
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Old Jun 20, 2020 | 09:51 AM
  #25  
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That bike has a tapered transmission shaft.
 
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Old Jun 20, 2020 | 09:57 AM
  #26  
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Correct!

When I first got my bike I could not keep the clutch adjusted and was going to try to find out why. Checked the throw-out bearing first. When I found nothing wrong I went to the primary side and saw the play in the hub. I went a bit deeper and found the nut was only hand tight. Put some blue loctite on the threads ( after pulling the compensator and checking the keyway on the basket and transmission shaft ) and all was well. It still is after 10 years.
 

Last edited by Capo; Jun 20, 2020 at 10:04 AM.
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Old Jun 20, 2020 | 09:57 AM
  #27  
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This is what I've got so far.
​​​​​​I probably will have to remove the compensator so I can remove the clutch and then remove the clutch basket for expection.


 
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Old Jun 20, 2020 | 10:08 AM
  #28  
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Originally Posted by Capo
Correct!

When I first got my bike I could not keep the clutch adjusted and was going to try to find out why. Checked the throw-out bearing first. When I found nothing wrong I went to the primary side and saw the play in the hub. I went a bit deeper and found the nut was only hand tight. Put some blue loctite on the threads ( after pulling the compensator and checking the keyway on the basket and transmission shaft ) and all was well. It still is after 10 years.
Hey Capo,

What nut are you referring to?
 
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Old Jun 20, 2020 | 10:09 AM
  #29  
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The transmission nut is reverse thread.

If you find that it came loose it needs 2 drops of blue loctite when reinstalling. Let the loctite cure for 24 hours. I found that out the hard way.
 
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Old Jun 20, 2020 | 10:10 AM
  #30  
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#6 on your diagram
 
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