Hills

Discussion in 'The Workshop' started by The General, Jan 8, 2008.

  1. The General

    The General Member

    Messages:
    822
    I've noticed that when I roll down a hill, then pull the throttle back its almost like when your bike is jetted completly wrong and then it pulls back and jolts forward. Its deffinetly not to do with my jetting because my bike doesn't bog at all and jetting is perfect.

    Would it be to do with clutch springs as I havent bothered to put my malossi ones in yet?

    Cheeeeers.
     
  2. kyle1b1

    kyle1b1 New Member

    Messages:
    5,191
    they all do it i think. is like is you do a skid then try band throttle on to go will do same.
     
  3. wobbly_trials

    wobbly_trials Active Member

    Messages:
    6,676
    Rides:
    RD350, SR125, ICE125
    its your variator trying to catch up with the speed your'e doing. its normal
     
  4. steve-k

    steve-k New Member

    Messages:
    465
    yeh i think its because the belt is jumping/slipping when skidding. arnt sure about hills though :wtf:
     
  5. The General

    The General Member

    Messages:
    822
    Ok thanks delete/lock this unless you want to keep it for others with the same Q.
     
  6. J-Nitro

    J-Nitro Active Member

    Messages:
    1,307
    it used to sound like I changed a gear when i did that on the nitro sounded pretty good with the open filter :cool:
     
  7. steve-k

    steve-k New Member

    Messages:
    465
    yeah its the only way to make myself feel like im riding a geared bike, not good for the belt though :w00t:
     
  8. spectroplasm

    spectroplasm Member

    Messages:
    68
    Rides:
    pug309 GTI / PGO bmx
    dito unless u got a spare belt i wouldn't recommend doing this often since it will put a sudden mass of force on your belt and will wear it out quicker, if you got to really accelerate the bike just pull quick and let go, the belt will start to tighten then ease the throttle and you can smooth it back to pace. this doesn't only happen on hills you know, if you have really tight clucth springs you can do this all the time with your bike, it make a really cool effect tho every1 who looks at you will say woa that a jumpy bike :w00t:
     
  9. numanoid1704

    numanoid1704 New Member

    Messages:
    1,081
    runer 125 fx

    hi, blew my mini melody engine up doing this! in the dim distant past.
     
  10. alexsr70

    alexsr70 New Member

    Messages:
    2,039
    from what i heard minor mention, this is lessened when you use a torque driver as it assists on decceleration
     
  11. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

    Messages:
    14,276
    Rides:
    et2 monster
    if you skid you free the clutch an the bike drops back to idle an the rollers to start position... then you reapply the throttle, the clutch bites an locks up wich pulls the belt to around half way up thje variator working against the resistance of the engine having to rev up under load..

    will kill your belt, mains and possibly bend/snap[ the crank.. the belt is stretched heavily when this happens
     

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