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Thread: Shifter arm removal HELP

  1. #1

    Shifter arm removal HELP

    How do I remove the gear selector (shifter arm). I'm removing it to install my raask rear sets which come with different linkage and shifter arm. I've removed the nut on the set screw bolt but can't get the bolt out to I assume relieve it from the shaft. It's a super awkward position and no room to hammer it out with like a tap. Thinking if I drill it out it will come but want to know if that's my answer before I take the drill to it. And yes, I've heated it up and tried to hammer a wedge between the arm and case to no avail.

    Any help is appreciated

  2. #2
    Airmarshal-IL James.A's Avatar
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    It helps to know what year/model bike we are talking about. I was working with a new owner yesterday at an airheads tech day and we removed the shift lever and linkeage from his R80/7. On every 5 speed transmission, the external shift arm is secured to the transmission's inner guts with a long cap screw/bolt/whatever into the gearbox. On a 4 speed, the shift lever is fitted to a splined shaft that protrudes from the gearbox. On a /6, the selector is directly attached to the works inside the trans. On /7 and later models, there is a heim joint style adjuster on the shift linkeage that bridges from the trans to an ear on the foot peg. On /7 and later bikes it is necessary to pull the foot peg along with the shift lever. If you are considering a wedge to remove the shift lever, I would assume you are working on a 4 speed trans. Non-flame heat, like a heat gun/hair dryer, and patience are what you need to employ, along with a wooden wedge.

    >>>>>> EDIT<<<<<<<<<<<<<<

    I reviewed your first post;....

    You can make super penetrating oil with a 50/50 mix of transmission fluid and acetone, but DO NOT apply a flame from a torch to anything you have treated with such a mixture. If the pinch bolt is broken off, you will have to drill it or use an E-Z OUT.
    1973 R75/5

  3. #3
    Registered User AntonLargiader's Avatar
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    Those 4-speed cottered levers can be a pain. Basically what happens is that the pin loosens and raises a burr on the shaft. Then you can't get the lever off.

    If you don't have the pin out, you can't take the arm off. The pin locks the arm to the notch in the shaft, so it has to come out. Heat, penetrant, etc. You may have to remove the transmission to get the right access to it.
    Anton Largiader 72724
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    Virginia Motorrad Werkstatt BMW motorcycle service and repair in central Virginia

  4. #4
    Quote Originally Posted by AntonLargiader View Post
    Those 4-speed cottered levers can be a pain. Basically what happens is that the pin loosens and raises a burr on the shaft. Then you can't get the lever off.

    If you don't have the pin out, you can't take the arm off. The pin locks the arm to the notch in the shaft, so it has to come out. Heat, penetrant, etc. You may have to remove the transmission to get the right access to it.
    Yes, thanks for your help as well. It is a 75/5 4sp. Definitely kicking my butt right now but am going to drill it out or cut it off if that fails since it won't be going back on the bike.

    Most results when searching the net for answers were guys who had the tranny pulled so yeah that method isn't necessary for me, I'll cut it before it comes to that.

  5. #5
    The bolt finally fell out after increasing the hole size 4x haha. Slid right off after that.20180506_173809.jpg

  6. #6

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