Honda PC50 Moped 4 stroke engine

Discussion in 'Introduce Yourself' started by hondapc50, Jun 10, 2011.

  1. hondapc50

    hondapc50 New Member

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    brnotbrnotHi All.
    I own a 1976 Honda PC50 pedal moped with a K1 4 stroke engine.
    Top speed is 30 MPH how can i increase the top speed of the bike ?
    Any kits ,carbs,jets ,etc ?
    Will a Honda cub 70 0r 90 carb fit the k1 pedal engine auto twist & go ?
    Has anyone upgraded one before ?
    Also how much more top speed can be gained ?
    Many thanks Roger
    Hull
    East Yorkshire UK
     
  2. Dave31

    Dave31 Moderator
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    Welcome to the forum Roger glad you joined us.
     
  3. GearNut

    GearNut Active Member

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    Welcome to the forum!
    You might want to check out mopedarmy. They most likely have alot of the info that you seek. Moped Army - Swarm and Destroy
    Good luck with your build!
     
  4. moonshiner

    moonshiner New Member

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    Howdy Rodger, you could use a aftermarket hi-compression piston like a wiseco , a larger carb ,and a nice expansion chamber pipe to boost the ponies , all of that is just bolt on and doesn't require much fuss or mechanical ability ...i have seen several mopeds built up to race this way , and a few fellows from a motorcycle magazine even built 50 cc mopeds and raced them from new york to LA 3000 + miles and they made it , so it seems like a pretty reliable build to do to a moped ...i think their mopeds topped out at about 45 MPH built this way xct2
     
    #4 moonshiner, Jun 11, 2011
    Last edited: Jun 11, 2011
  5. GearNut

    GearNut Active Member

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    I agree with everything moonshiner said except the expansion chamber exhaust pipe.
    They don't do diddly for 4-stroke performance gains.
     
  6. moonshiner

    moonshiner New Member

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    my bad for some reason i was thinking the little Honda was a 2 stroke , they make a 4 stroke performance pipe as well ...
     

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