rear brake looses pressure when i wheelie

Discussion in 'General Scooter Discussion' started by rideorcollide, Jan 28, 2010.

  1. rideorcollide

    rideorcollide Active Member

    Messages:
    2,122
    Rides:
    TYPH 172
    my back break seems to loose pressure when i go far back on a wheelie, its alright if i keep the front low.. but when i go further back the brake starts to loose pressure and go spongey :pale: :confused:cratch: would it be something to do with air bubbles in the system? or could it have something to do with my hose i think its a goodridge braided hose.
     
    rideorcollide, Jan 28, 2010
    #1
  2. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

    Messages:
    14,276
    Rides:
    et2 monster
    common on runners... remove the caliper (leave the line in whip the pads out.. bleed it (put somthing between the pistons so they dont pop out, thin bit of wood will do) and then compress the pistons back into the caliper holding the calipr UPSIDEDOWN, this will remove the air from the caliper usually.... if you lay them flat (so the part that faces left is laying on the floor) they bleed ALOT easier.
     
    MiNoR cOnFuSiOn, Jan 28, 2010
    #2
  3. rideorcollide

    rideorcollide Active Member

    Messages:
    2,122
    Rides:
    TYPH 172
    its on my typh.. but yeah sweet ill do that ;)
     
    rideorcollide, Jan 28, 2010
    #3
  4. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

    Messages:
    14,276
    Rides:
    et2 monster
    typhs dont have calipers, yours is a runner caliper/lever... wich is why your having a runner specific problem... its worse with the drag caliper, is it a xx caliper your using or just the runner sp one?
     
    MiNoR cOnFuSiOn, Jan 28, 2010
    #4
  5. mk14

    mk14 Member

    Messages:
    161
    Rides:
    zip sp 70
    or it could be when the resivour is tilted the fluid runs away from where it flows in to the master cylinder meaning your just compressing air. try tilting the handlebars/brake cylinder forwards abit
     
    mk14, Jan 28, 2010
    #5
  6. monty9120

    monty9120 Active Member

    Messages:
    3,624
    Rides:
    Vespa gts300
    maybe fluids low?
     
    monty9120, Jan 28, 2010
    #6
  7. rideorcollide

    rideorcollide Active Member

    Messages:
    2,122
    Rides:
    TYPH 172
    probably is lol i'll have to check :blush:
     
    rideorcollide, Jan 29, 2010
    #7

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