gilera runner 50 sp

Discussion in 'The Workshop' started by Undercover Runner, Sep 27, 2010.

  1. Undercover Runner

    Undercover Runner Member

    Messages:
    136
    Rides:
    Gilera Runner SP
    hello all,

    my bike is really playing up, its not running properly acceleration seems lazy, lags alot... sometimes im going uphill and there is no acceleration and there is major dips in RPM.. what can be causing these problems?

    its got a 77mm jet paired with a doppler airfilter and a yasuni R exhaust
     
  2. bertie

    bertie Active Member

    Messages:
    1,440
    Rides:
    '93 Skipper LX125
    A 77mm jet would be huge.. You mean size 77 right? That airfilter, the jetting and transmission setup is whats causing the problem.

    Get the airbox back on, stick a 58-62 jet in the carb and throw some 5g rollers in the variator, fit some stiffer clutch springs too if you can. That should have it running reasonably well and will be a good setup to fine tune on.
     
  3. Undercover Runner

    Undercover Runner Member

    Messages:
    136
    Rides:
    Gilera Runner SP
    thanks mate, i will try what you said, it was a 77 size main jet that got installed your right, when you say fine tune, what does that include?
     

Share This Page