Recent content by rotn50

Mini Dirt Bikes & Pit Bikes Forum

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  1. rotn50

    New need help

    There's a seal in the stator backing plate, you need to remove the flywheel and remove the old seal on the crank and replace.
  2. rotn50

    140 lifan no clutch

    It must be the pin or the pin isn't in the clutch arm socket mate, did the bearing go back in the clutch plate?
  3. rotn50

    Crossfire 140 vs Thumpstar 140

    Yeah it's not genuine, the vm22 is a pretty good carby mate.
  4. rotn50

    Crossfire 140 vs Thumpstar 140

    VM22 for a 140, the 27 is a tad bigger but the mikuni is a much better carby.
  5. rotn50

    gpx125cc

    Do you have a picture of the carby?
  6. rotn50

    Best carb opinions for 160cc

    The 26mm mikuni has a mixture screw on the bottom of the carby, if you turn the carb upside down you will see it. The mikuni 30mm carb jetting is pretty good with a 160, the 26 will not give you topend revs.
  7. rotn50

    Bike goes when choke flipped off without engageing throttle.

    Sounds like its sucking air at either ends of the intake manifold.
  8. rotn50

    bike keeps dying

    Did you sort the problem out mate?
  9. rotn50

    Pitbike help

    The OKO 26mm is perfect for this motor, standard jetting works well but if you want to tweak it DHZ sells jets for it too. OKO PWK 26mm Flat Slide Race Carburettor Kit
  10. rotn50

    Mikro 70cc quad

    The 70 and 90cc both run a 47mm piston, the head and base gaskets are also the same.
  11. rotn50

    Lifan 70cc

    I've seen them as high as 150psi, under 100psi they run terrible if they run at all.
  12. rotn50

    Electrical problem

    Does your bike have a key to turn on before starting?
  13. rotn50

    Help Identifying pit bik

    No worries mate. Take it easy. If it ain't broke, break it.
  14. rotn50

    Converting 5 pin AC CDI to 4 Pin DC CDI any good?

    It's very common to hook the killswitch up to stop the motor thru the stator pickup mate. Won't hurt anything. If it ain't broke, break it.
  15. rotn50

    Converting 5 pin AC CDI to 4 Pin DC CDI any good?

    As this pic here shows blue with white in a 4 pin is the main wire to join to your killswitch but you can also use the black with yellow stripe. If it ain't broke, break it.
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