Shifting issue?

Discussion in 'GS Boxers' started by Donkey12, Apr 16, 2018 at 3:57 PM.

  1. Donkey12

    Donkey12 Adventurer

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    Hello all, so i have a 2002 R1150GS. I got the bike used and it has less than 10k miles on it currently. It started doing something different and has me perplexed. When coming to a stop or slowing down, when i push down on the shifter it is hard. As in wont go down into the next gear. So i ease of it and try again and it downshifts as normal. This doesnt only happen in one particular gear either. Its happened going from 3rd to 2nd and 2nd to 1st. Maybe even 4th to 3rd i dont recall. I never force it or put undue force on it. I just take the pressure off and try again and it always works. Anybody smarter than me have any ideas? I did wonder about the transmission oil and it was at a proper level. I went ahead and changed it anyway along with the final drive oil but that changed nothing. On a ride id guess it does this about 10% of the time. Definitely not every shift. Thanks in advance.
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  2. Callisto224

    Callisto224 Long timer

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    Clutch not engaging fully?

    Maybe bleed clutch fluid.
    #2
  3. Donkey12

    Donkey12 Adventurer

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    I did wonder about that. But its fine when stopped at a light in neutral and putting into first gear. But maybe i wouldnt notice?
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  4. TUCKERS

    TUCKERS the famous james

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    Check the exterior linkage...it's probably loose or maladjusted...easy to fix.....happened to the Mrs's 1150.
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  5. tjt94

    tjt94 Been here awhile

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    My '01 was like this too and it was the linkage. It was about to fall off but once adjusted and tightened, the shifting was very smooth and direct.
    #5
  6. Donkey12

    Donkey12 Adventurer

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    Lets hope thats my issue. I will check it out. Thanks everyone
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  7. TUCKERS

    TUCKERS the famous james

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    It will be. Probably the bit that goes on the gearbox shaft. You will need to find neutral and put the shifter in a good place for your foot. The linkage is NOT supposed to move around the shaft until you take the bolt out completely...don't just slacken it....remove it (the bolt).
    #7
  8. Donkey12

    Donkey12 Adventurer

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    Well checked the linkage and it all looks good. The spline that comes out of the transmission is secured to the linkage with no loose bolts. Even has the facroty green paint showi g the bolt hasnt moved.
    But i have new information. When the bike is cold and i pull in the clutch and depress into 1st gear...its not going in to 1st. So i held downward pressure on the shifter and slowly let the clutch out and it engaged. Now im guessing maybe air in the fluid or a bad slave cylinder. Once warm it went into 1st with no other issues, but clearly something isnt right. Perhaps just an adjustment?
    #8
  9. TUCKERS

    TUCKERS the famous james

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    Adjust what? Just freeplay on the clutch lever. Have you tried 'pumping' the clutch lever? Does it work well then? If so you need to bleed it.
    Are the bolts adrift on the linkage that is adjustable for length?

    Is the bolt holding the shifter OK?

    Do you see any brake fluid around the master for the clutch?
    #9
  10. Gezerbike

    Gezerbike eeny meeny chili beany the spirits are about to

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    Pressure = forcing, and that is not how to run a transmission. Finesse works much better. BMW's are notorious for hard shifting, you just have to figure how best to shift yours. This is especially true when it comes to down shifting. Try this: as you are rolling up to a stop, say doing 50 mph, pull in the clutch and keep it in as you are braking. As you slow down downshift the gear relative to your speed. I think you'll find it will downshift fine. I never downshift and let out the clutch when coming to a stop, that is why I have brakes, which are easier and cheaper to replace. Trouble getting it in 1st from a stop? Try snicking it up into second, then go into first.
    #10
  11. Donkey12

    Donkey12 Adventurer

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    So i just pumped the clutch and then it worked fine. Initially before pumping it did not go into gear. Sounds like it needs to be bled.
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    Callisto224 likes this.
  12. Donkey12

    Donkey12 Adventurer

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    #12
  13. Donkey12

    Donkey12 Adventurer

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    I actually shift down the same way as you and do n I t let the clutch out. After pumping the clutch several times it would go into first like normal. Sounds like i need to bleed the unit.
    #13
  14. Donkey12

    Donkey12 Adventurer

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    I should mention that this bike is not new to me. Owned it for the last 6k miles or so. So the problem is definitely new.
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  15. TUCKERS

    TUCKERS the famous james

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    Well you can bleed the clutch and then if it comes back you need a cylinder. Having a contortionist around will help you change it. Sometimes it's just one of the banjo bolts....if you can get in there and give them a nip you may save it. IIRC I custom tool to take the cylinder off.
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  16. Gezerbike

    Gezerbike eeny meeny chili beany the spirits are about to

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    If you need to bleed it, which it sounds like, probably means you have a leak.
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  17. Donkey12

    Donkey12 Adventurer

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  18. Donkey12

    Donkey12 Adventurer

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    Yes it looks awfully tight in there. Gonna have to give it a go though. Thanks again
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  19. TUCKERS

    TUCKERS the famous james

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    If it’s weepy you can see it can get a lot of weather there! Easy to bleed though, that’s that funny looking cable doo-dad on the right side of the bike with an unusual looking end.
    #19
  20. Welshman

    Welshman B.U.F.F.

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    Most likely the spline where it enters the gearbox, remove the lever, clean the splines both sides internal and external, run a hacksaw blade through the slot to make sure its clear, there is a mark on the end of the shaft for correct alignment, refit and torque it up, assemble linkage with lots of grease, if you don't have the foam seals for the ball joints, back to back self adhesive corn plasters work. :D
    #20