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Transmission grinding noise

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Old 06-29-2021, 07:13 PM
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Default Transmission grinding noise

My bike's a 2002 Dyna Low Rider 88c.i. I searched everywhere and I can't see anyone else having this problem. All is good with the first gear, 4th and 5th, but when I shift in 2 gear I don't get the good solid clunk like it used to. I hear a lighter thin loose metallic sound, a lighter clunk and some grinding noise if I shift fast. There is no grinding if I let the rpms drop. I have this problem especially at high rpms. I hear a grinding sound in 3 gear as well but with a solid clunk and no metallic sound. The warmer the motor, the worst it gets. The grinding noise is the same as when you have the bike running on choke and you put it in first gear too slow. Can anyone help me with this?
 

Last edited by Seventy 7; 06-29-2021 at 08:40 PM.
  #2  
Old 06-29-2021, 09:20 PM
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Change yer trans fluid to Synthetic 75/140 gear oil and take it for a looooooog Road Test.
 
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Old 06-30-2021, 03:01 AM
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Originally Posted by TexasScooterTrash
Change yer trans fluid to Synthetic 75/140 gear oil and take it for a looooooog Road Test.
Thanks but I'm not sure how that would help. It started doing that after a f****ed up a shift while racing someone. I downshifted hard and went a gear to low and dropped the clutch. Also I felt it going in wrong. I have a feeling I might have bent or broke something.
 
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Old 06-30-2021, 06:35 AM
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Originally Posted by Seventy 7
Thanks but I'm not sure how that would help. It started doing that after a f****ed up a shift while racing someone. I downshifted hard and went a gear to low and dropped the clutch. Also I felt it going in wrong. I have a feeling I might have bent or broke something.
Valuable info that should have been included in post #1
Take it to a trusted Indy or at least seek their advice. It’s your your tranny! don’t let what maybe a small issue become a large expensive one.
Dick measuring contests sometimes come with consequences !
Btw welcome to the forum from Winnipeg Manitoba! (Presently visiting nearby in Ottawa)
 

Last edited by Weeboy1; 06-30-2021 at 06:42 AM.
  #5  
Old 06-30-2021, 06:47 AM
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Get out your service manual...

Remove the top cover and the clutch release cover (right side cover).

Remove the shift drum, slide out the shifter fork shaft, remove the shift forks and look them over carefully.

 
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Old 06-30-2021, 07:23 AM
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Originally Posted by Seventy 7
My bike's a 2002 Dyna Low Rider 88c.i.
Originally Posted by Seventy 7
while racing someone.
Hey neighbor, Subscribed
 
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Old 07-11-2021, 09:07 PM
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I think you fugged the shift dogs. Going to need to split the tranny open. Otherwise you bent a shift fork.
 
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Old 07-11-2021, 11:10 PM
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Originally Posted by Dan89FLSTC
Get out your service manual...

Remove the top cover and the clutch release cover (right side cover).

Remove the shift drum, slide out the shifter fork shaft, remove the shift forks and look them over carefully.
I will be trying that soon. Thank you
 
  #9  
Old 07-11-2021, 11:13 PM
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Originally Posted by jasle
I think you fugged the shift dogs. Going to need to split the tranny open. Otherwise you bent a shift fork.
I have a feeling that you are right. I will be going in there soon, waiting for a rainy weekend lol
 
  #10  
Old 07-12-2021, 05:18 AM
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After a spot-on clutch adjustment to insure proper working order, and the problem still persists, pull the lid and take a look.
Scott
 


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