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Thread: RANDOM RPM LOSS

  1. #1

    Join Date
    May 2006
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    Miami, FL
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    RANDOM RPM LOSS

    I WAS WONDERING WHY MY RPM'S DROPPED FROM 8450 DOWN TO 8200. I GOT AN RR ECU AND SOME OTHER MODS. I WAS RIDING LAST WEEKEND AND IT WAS GREAT, THEN JUST DROPPEDDOWN TO 8200. SOME HELP WOULD BE GREATLY APPRICIATED

    THANK YOU


  2. #2
    CRAZEDRXP's Avatar
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    Apr 2005
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    PHILADELPHIA
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    overfilled oil??? Wear ring??? Heat soak??

  3. #3
    Vern's Avatar
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    May 2005
    Location
    Grand Haven, MI
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    I have had that occasionally ... with me it was always the clutch not locking up completely.

    I switched to Amsoil 10w40 JASO MA certified wet clutch synthetic motorcycle oil. I noticed Sunday that my machine was hesitating a bit on top end and only pulling 7800 rpms range and only 6 lbs of boost and 72 mph ... puzzled me a bit ... I ran it hard, jumped it a few times, the clutches kicked in, seemed to 'clean off' the clutches, SC grabbed good, ran 8100 rpm and 75 - 76 mph the rest of the day, 7 lbs boost again.

    This also used to happen with the stock SC and stock clutches and mineral oil. I would fix it the same way ... jump it a few times, run it hard, chop the throttle, do whatever it took to make the clutch squeal a few times, and then the boost and performance would come back.

    My opinion from my above experience? With where/how I ride, the clutch rarely gets used ... so after awhile it will slip a little at high rpms. Jumping it makes the clutch engage good, seems to clean up the clutch surface so it grabs again, and the problem goes away. Just my 2 cents ... costs nothing to try.

  4. #4

    Join Date
    May 2006
    Location
    Miami, FL
    Posts
    42
    THANKS ALOT

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