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Thread: Rebuilding a C50 Engine

  1. #1
    Join Date
    3rd December 2007 - 18:33
    Bike
    2008 Sachs MadAss 50
    Location
    Nelson
    Posts
    11

    Question Rebuilding a C50 Engine

    Hey,
    long time reader, 1st time 'Thread-er'...

    I have an old c50 motor that i acquired a year or so ago, and i am in the planning stages of rebuilding it from the ground up...
    I'm just wondering if there are any tricks to this process, and any seals and parts i should defiantly replace.
    The motor itself will be eventually turboed and dropped into my mini-chopper... (or so is my plan...) so i will be in need of a hardened/forged piston/rings if they are possible to acquire.

    ANY help and or advice on the subject would be much appreciated, especially suppliers of the parts required.
    "Friends DON'T let friends ride STANDARD!!"
    09' Sachs Madass, 84' Honda Nifty50 (Current Project), 110cc Mini Chopper (Next Project)

  2. #2
    Join Date
    24th June 2004 - 17:27
    Bike
    So old you won't care
    Location
    Kapiti
    Posts
    7,880
    Step 1: get a workshop manual and a parts book

    I doubt you will believe how much this will cost you $$ wise and I'd be amazed if you can find a turbo small enough - arguably a waste of time turboing a single anyway - get a bigger engine

  3. #3
    Join Date
    3rd December 2007 - 18:33
    Bike
    2008 Sachs MadAss 50
    Location
    Nelson
    Posts
    11
    Yes this may be true on the turbo side of things, but i have seen it done overseas, with very little modification to a Dihatsu Charade Diesel turbo.
    On the manual side of things, some one some where must have put it into a archive style text on a computer by now...
    "Friends DON'T let friends ride STANDARD!!"
    09' Sachs Madass, 84' Honda Nifty50 (Current Project), 110cc Mini Chopper (Next Project)

  4. #4
    They are a fairly basic motor,for an OHC anyway.With an impact driver,a hammer and a few hand tools you could pull one down and put it together.Try to find a SS50,they had bigger valves and ports,and a hotter cam too....plus a 4 speed box.Otherwise,go for a clone....

  5. #5
    Join Date
    10th December 2007 - 14:23
    Bike
    1991 Honda CD250U
    Location
    Christchurch
    Posts
    44
    wow awesome idea. I have a c50 i commute daily on. tough little bikes. good luck!

  6. #6
    Join Date
    3rd December 2007 - 18:33
    Bike
    2008 Sachs MadAss 50
    Location
    Nelson
    Posts
    11
    Quote Originally Posted by Motu View Post
    They are a fairly basic motor,for an OHC anyway.With an impact driver,a hammer and a few hand tools you could pull one down and put it together.Try to find a SS50,they had bigger valves and ports,and a hotter cam too....plus a 4 speed box.Otherwise,go for a clone....
    what make are the SS50's? and i have a fairly limited budget so hence why i'm going to try work with what i have 1st of all.
    "Friends DON'T let friends ride STANDARD!!"
    09' Sachs Madass, 84' Honda Nifty50 (Current Project), 110cc Mini Chopper (Next Project)

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