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Thread: Clutch Adjustment 1990 Ultra Glide

  1. #1

    Clutch Adjustment 1990 Ultra Glide

    Howdy,

    I'm working on a 1990 Ultra Glide and I cant seem to get the clutch adjustment right.

    I'm following the process, loosen the cable off completely, take the derby cover off, loosen the lock nut, screw the adjuster until it seats then back it out half a turn, then adjust the lever.

    Done this 8 times and the clutch still crabs / wants to jump forward when I put it in gear and trouble finding neutral when the bike is running.

    Am I missing something here?

    Thanks
    Dave
    1938 WLDR
    1940 WL (Race Bike)
    1944 WL
    1948WR
    1993 FLHT

    http://1944WL.webs.com

  2. #2
    Join Date
    Mar 2008
    Location
    Beautiful Northern NM
    Posts
    12,600

    Re: Clutch Adjustment 1990 Ultra Glide

    It isn't the adjustment, it is the plates themselves. They need cleaning or replacement, they are sticking together.
    Friends help friends move,
    Real friends help friends move bodies!

  3. #3

    Re: Clutch Adjustment 1990 Ultra Glide

    Thanks Robbie.

    I have hoping for an easier option. LOL
    1938 WLDR
    1940 WL (Race Bike)
    1944 WL
    1948WR
    1993 FLHT

    http://1944WL.webs.com

  4. #4

    Re: Clutch Adjustment 1990 Ultra Glide

    Well Dave, the easy way, the hillbilly way (the way I do it sometimes) ... is to slip the pi$$ out of the clutch a few times. Works ok depending on how gummed up they are. (Do they even have hillbillies Down Under?)

  5. #5

    Re: Clutch Adjustment 1990 Ultra Glide

    Thanks droptopford,

    We do have a form of Hillbillies down here, we refer to them as bogans.

    If they can afford a Harley they're "cashed up bogans" :-)
    1938 WLDR
    1940 WL (Race Bike)
    1944 WL
    1948WR
    1993 FLHT

    http://1944WL.webs.com

  6. #6
    Join Date
    Mar 2008
    Location
    Beautiful Northern NM
    Posts
    12,600

    Re: Clutch Adjustment 1990 Ultra Glide

    Friends help friends move,
    Real friends help friends move bodies!

  7. #7

    Re: Clutch Adjustment 1990 Ultra Glide

    Over full primary oil will cause clutch to drag.
    Ron

    56 FL ABS(front only)

  8. #8

    Re: Clutch Adjustment 1990 Ultra Glide

    Quote Originally Posted by Rubone View Post
    Being from the NYC far suburbs I really had to laugh. Good one Robbie.

  9. #9

    Re: Clutch Adjustment 1990 Ultra Glide

    I made a little home made tool to put pressure on the spring plate and pulled it all out. I liked my $3.85 version of the special tool.

    What I found was the clutch plates were definitely sticking together and gammy. The other thing was the oil level was sitting just under the clutch basket with the bike on the side stand and yet it seems from the manual it should be at that level with the bike standing up straight.

    My other question now is what weight / type of oil to run as the manual says 1.4lt of Harley Primary oil.

    Thanks
    Dave

    I’ve cleaned them up
    1938 WLDR
    1940 WL (Race Bike)
    1944 WL
    1948WR
    1993 FLHT

    http://1944WL.webs.com

  10. #10

    Re: Clutch Adjustment 1990 Ultra Glide

    Quote Originally Posted by DaveAus View Post
    My other question now is what weight / type of oil to run as the manual says 1.4lt of Harley Primary oil.
    I have a quart of H-D Formula+ oil. The label says "Transmission and Primary Chaincase Lubricant". The back label says "Formulated to provide lubricity for the anti-wear requirements of transmission gears".

    And "Formulated to maintain the coefficient of friction for proper clutch operation and provide adequate lubrication to the primary chain drive."

    It also says "NOT FOR USE IN THE CRANKCASE AS A MOTOR OIL" There is no information about viscosity/ingredients etc.

    I've been using this stuff in my primary cases on my later model Harleys (after they switched to separated crankcase/primary case).
    Most of this is probably just the usual H-D propaganda. I know they don't own their own oil refineries and that there's something else out there that would work just as well. I'm sure Robbie knows a lot more about what works and what to avoid.
    Is there a specific reason you want/need to use a substitute?

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