Primary Bearing
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Road Master
Joined: Jul 2008
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From: In the mountains
Primary Bearing
1992 FXR. Will a bad primary bearing cause a lot of vibration?
Also do I need to compress the spring to remove clutch/clutch basket? or can I remove as a unit?
Also do I need to compress the spring to remove clutch/clutch basket? or can I remove as a unit?
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Road Master
Joined: Jul 2008
Posts: 855
Likes: 413
From: In the mountains
I've replaced motor mount, stablizer links, and the swing arm isolator's. Tracks straight, shifts great and quiet. Think I can hear a "squeak" at the rear of the primary. vibrates bad enough I'm afraid of cracking the fairing and bags. Does it stopped, while riding, in gear, out of gear.
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Road Master
Joined: Jul 2008
Posts: 855
Likes: 413
From: In the mountains
Guess it could be motor related, it does increase with rpm. Gets just a little better at at about 2800-3000 rpm, them gets worse again.
Last edited by natural gasser; Aug 29, 2017 at 06:55 PM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,096
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From: South Carolina
The primary bearing will make a fair amount of noise when it is bad.
To isolate a primary bearing issue:
Engine running, clutch lever pulled in, drop the transmission into gear.
When you drop the transmission into gear, the mainshaft (and primary bearing) will stop spinning.
To isolate a primary bearing issue:
Engine running, clutch lever pulled in, drop the transmission into gear.
When you drop the transmission into gear, the mainshaft (and primary bearing) will stop spinning.
Last edited by Dan89FLSTC; Aug 29, 2017 at 07:08 PM.
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Road Master
Joined: Jul 2008
Posts: 855
Likes: 413
From: In the mountains
Great information Dan, thank you. I'll check that. I don't relish pulling the inner, but if that's the source of my vibration, inexpensive fix. Back to my first question, can I pull the clutch and basket as a unit without compressing the spring?
Seasoned HDF Member
Joined: Nov 2006
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From: East Coast, USA
You should be able to remove the clutch as an assembly without a spring compression tool. Mainshaft nut is under release plate. Remove retaining ring to remove release plate. Highly recommend you get a factory service manual if you don't have one.
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Road Master
Joined: Jul 2008
Posts: 855
Likes: 413
From: In the mountains
Thanks for the info. I do have a factory manual, includes the FLT as well as the FXR. It's not that descriptive, actually pretty vague. The SM for my newer bikes is much better.
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