172 fine tuning

Discussion in 'Maxiscooter Tuning' started by apex, Nov 21, 2007.

  1. apex

    apex New Member

    Messages:
    134
    Iv just fitted a 25mm carb to my bike and im trying to set it up at the moment.
    There are two main issues about it:

    It doesnt run smooth on 1/4 throttle, it revs and splutters until i give it more gas, at which point it kicks in pretty violently. Im not sure what thats down too which makes it difficult to adjust.

    The other issue is when im decelerating from full throttle. It doesnt seem to go back to idle quick enough, as if the clutch was staying engaged, and if i give it some revs when decelerating it bogs very slightly. When i reach a certain speed it frees up.

    BTW setup is 172, 25mm carb, stubby MHR manifold and 180 vario.

    Any help would be great!!

    Cheers
     
  2. Jamie

    Jamie Active Member

    Messages:
    5,370
    Rides:
    xt660x, 200sx s14a
    probabally just need to fiddle about with things like your idlemixture, jets and needle height,
     
  3. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

    Messages:
    14,276
    Rides:
    et2 monster
    idle mix and jets.. so that leaves fuck all else to try really.. really helpful

    drop the needle down a notch and wind the idle mix out half a turn
     

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