Tuning parts for chinese bicycle engines

Discussion in 'Spare Parts, Tools & Product Developement' started by vax, Jan 20, 2010.

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  1. vax

    vax Guest

    Hello, I was browsing part list from http://www.kingsmotorbikes.com and came into thought, that I could make and sell tuning parts for these engines. For example racing ported cylinders and exhaust pipes. I've been tuning Russian (original) versions with very good results (check http://motoredbikes.com/showthread.php?t=4769 ).
    So what do you folks think? Is there demand for such parts?

  2. datsun610

    datsun610 Member

    hi mate yes thare wald be how big are the raceing heads and are the mufflers expantion chambers can you send or post some pics ill bye some from you
  3. AussieSteve

    AussieSteve Active Member

    vax - Many here would be interested.
    Have you got any further?

    I fixed your link: some development

    I read this thread some time ago. Once again, very interesting.
    Last edited: Jun 21, 2010
  4. datsun610

    datsun610 Member

    in deed how much for the motors i was thinking of making a reed for mine but the inlet is to small to
  5. Molotov256

    Molotov256 Member

    Just figured I'd cast another "yea" vote. I'd be interested in some more performance parts, ESPECIALLY if they were affordable. It's a bit of a quandary to make affordably-priced performance parts for an engine which only costs $120 USD to start with, though, lol...
  6. WhizBangAndy

    WhizBangAndy Member

    Im interested in some bits if and when they surface too.
  7. jaguar

    jaguar Well-Known Member

    I too thought the intake port of a 48cc HT was too small for a reed valve but I made one and put it in there and it worked just fine.
  8. richirich1113

    richirich1113 Member

    Yes For Improved Parts

    Someone needs to make some quality billit intake manifolds for 58cc motors. The intake that comes stock is a cheap pot metal or something and does not look up to being tapped or double tapped for boost bottles. Another problem is other size motors come with a bolt spacing of 32mm, the 58cc has a 40mm spacing. I have found a company that sells straight shot manifolds(but completly out of stock) unfortunatly due to the angle of the motor and clutch arm they are unusable anyway. So a up angled or offset manifold tapped and double tapped for boost bottles might just have a market.
  9. V 35

    V 35 Member

    I like the idea of an upgrade kit, which produces, more power, more reliability, looks
    cool, and is easy to do. Product should be well documented, and defined as to ' Who
    Should Buy This Kit ' A Big Fat Guy with many hills between here and there, would want Torque, someone who dodges potholes may want quicker throttle response, those blessed with smooth, straight roads, may want more Top End. I don't see how * one * kit could do it all, but do see where a buy the right one for your needs, may sell in,what I hope to be, a fast growing market. Including better studs, and required gaskets should keep your customers Happy.