Not Another Oil Thread!!!!!!

Discussion in 'Trials' started by Mike D, Apr 10, 2014.

  1. Mike D

    Mike D Corporate Cog

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    Yup, another one. This question has been addressed a thousand times here, but of course I can't turn up anything and the search function isn't helping. My apologies.

    2008 GG 280 Pro. Shifts like crap, especially down. I've been running ATF Type F exclusively for 2.5 years. I love the clutch feel, but the shifting sucks.

    Recommendations?
    #1
  2. jonnyc21

    jonnyc21 Trials Ninja

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    #2
  3. motobene

    motobene Motoing for 44 years

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    Yeah thanks. That's my thread. It's not an oil issue. Adjusting the spring centering cam correctly will make a very real difference in the quality of shifting. My downshifts were really balky, especially when slowing from the loop to a section. Now that bike (grey case below) has shifted very smoothly since the adjustment.

    The adjuster is simply an eccentric cylinder fixed to the case with a cap screw. I had to bias the adjuster as far as it would go.Here is a pic of the eccentric. Hopefully yours will have more range of adjustment:

    [​IMG]
    #3
  4. Mike D

    Mike D Corporate Cog

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    I tried to do that earlier, but wasn't able to remove the clutch basket. Yes, I removed the center bolt (the one with the hole in it). I tried prying it out with screwdrivers (as Jim Snell demonstrated in his videos), but I couldn't get it to budge. I guess I'll have to try harder.
    #4
  5. motobene

    motobene Motoing for 44 years

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    Damned things bottom on the splines and get stuck. I believe they very precisely machine the splines that way so there isn't slop that could loosen the 5mm retention screw.

    I hate prying with a screwdriver against the case. Friend of mine says yeah just be patient and it'll come free with some working at it. Snell uses one of those flat small nail claws, and slips it under the primary gear on the basket so he can pry up.

    I've got one stuck stubborn one now. I'll look for the little flat-type nail claw to avoid levering off the gasket surface of the case. I could also fab an adapter plate for two of the 12-point, 8mm clutch screws so I can use my slide hammer.
    #5
  6. motobene

    motobene Motoing for 44 years

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    Oh and one more thing. What gets those clutches off when prying is subtle rockering. Raise one side, then the other, back and forth. Don't just pry on one side. You probably knew this already....
    #6