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Road Master
Joined: Aug 2007
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From: Grew up in Texas, moved to AZ
As far as I know, the splined tranny shaft on big twins didn't come out from the factory until 1990, and then the length changed on 1991 and beyond, so that makes 1990 a one year off. 1989-and back, there were only key-way shafts.
Do you know if you have a splined shaft? Easiest way to tell is to look in the primary, and maybe you don't have to pull the clutch pack to do it, but you probably will have to.
Do you know if you have a splined shaft? Easiest way to tell is to look in the primary, and maybe you don't have to pull the clutch pack to do it, but you probably will have to.
Made me go look.
I see recent posts from his account, but mostly throwaway comments in the TOAK. Been a couple of days since he answered a technical question. There was also a gap from May 20 to July 15 where he didn't post at all.
He's not listed on the Baker staff page anymore either.
I see recent posts from his account, but mostly throwaway comments in the TOAK. Been a couple of days since he answered a technical question. There was also a gap from May 20 to July 15 where he didn't post at all.
He's not listed on the Baker staff page anymore either.
Ultimate HDF Member
Joined: May 2006
Posts: 6,590
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From: Ohio
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Stellar HDF Member
Joined: May 2018
Posts: 2,153
Likes: 429
From: australia
As far as I know, the splined tranny shaft on big twins didn't come out from the factory until 1990, and then the length changed on 1991 and beyond, so that makes 1990 a one year off. 1989-and back, there were only key-way shafts.
Do you know if you have a splined shaft? Easiest way to tell is to look in the primary, and maybe you don't have to pull the clutch pack to do it, but you probably will have to.
Do you know if you have a splined shaft? Easiest way to tell is to look in the primary, and maybe you don't have to pull the clutch pack to do it, but you probably will have to.
Seasoned HDF Member
Joined: May 2008
Posts: 20,974
Likes: 12,500
From: South Carolina
As far as I know, the splined tranny shaft on big twins didn't come out from the factory until 1990, and then the length changed on 1991 and beyond, so that makes 1990 a one year off. 1989-and back, there were only key-way shafts.
Do you know if you have a splined shaft? Easiest way to tell is to look in the primary, and maybe you don't have to pull the clutch pack to do it, but you probably will have to.
Do you know if you have a splined shaft? Easiest way to tell is to look in the primary, and maybe you don't have to pull the clutch pack to do it, but you probably will have to.
A 1990 mainshaft can be used with `85-`90 gearsets only, with the diaphragm clutch, not the shovelhead type clutch.
OP: I think you need to get used to pushing the bike backwards...
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Stellar HDF Member
Joined: May 2018
Posts: 2,153
Likes: 429
From: australia
The 1990 shaft is the same length as `91 and later, the difference is in the outside diameter when it is supported by the needle bearings that are inside the main drive gear.
A 1990 mainshaft can be used with `85-`90 gearsets only, with the diaphragm clutch, not the shovelhead type clutch.
OP: I think you need to get used to pushing the bike backwards...
A 1990 mainshaft can be used with `85-`90 gearsets only, with the diaphragm clutch, not the shovelhead type clutch.
OP: I think you need to get used to pushing the bike backwards...
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