4 stroke 50cc

Discussion in 'General Tuning' started by cr182, Feb 22, 2014.

  1. cr182

    cr182 New Member

    Messages:
    22
    I have a Peugeot vclic 50cc which is just the BT49QT-9, but just rebranded by Peugeot.

    I currently get about 40mph on the flat but my acceleration isn't very good.

    I think it has a few restrictions still left on it because 40 is the max it will go, even on downhill.

    For the low acceleration issue, I was thinking of new rollers... is 4.5g the best weight?

    The lower end is mainly what I want to improve at the moment, is there anything else apart from rollers that'll get it going a bit faster?
     
  2. MARSH

    MARSH Whooooo!

    Messages:
    3,266
    Rides:
    Piaggio Typhoon
    80cc kit! rollers won't make a lot of difference.
     
  3. Merlin

    Merlin Old School Biker

    Messages:
    2,305
    Rides:
    2007 TKR WRC 50
    It has a variator washer, a restricted CDI and (possibly) a restriction washer in the exhaust. It's a re-branded Sinnis scooter and the rev limiter wire to the CDI needs to be cut (Pink I think). One thing I will say though; ask SteveP about this first, as he's been working on one and the quality isn't great.
     
  4. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    The cdi restrictor is the green one!
     
  5. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    I dont think they have a vario washer if I recall its just the rev limiter
     
  6. hairyjim

    hairyjim To be repaired, restored.i hope.

    Messages:
    1,229
    Rides:
    Got a gilera ice
    had a big screw in the top of the carb in my qt 9 on my Roma.replaced the carb for 19 mm.fat pipe and a cheap filter.got an 80 for it but waiting to get the cam and gear up and do it all engine out.as it is with out bits it does 40at a push on the flat.
    45/47 down hill.
     

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