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    4-Speed Manual ST90 Transformation

    Hi All, I'm definitely late to the party here, but I'm looking to change my ST90 to a four speed. Not interested in adding a manual clutch, just want to keep the semi-auto. So, I just want to get this right...I can drop in a transmission from a S90, SL90 or CL90 into the St90 case and everything...
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    Testing a flasher relay

    Hi everyone! I'm in the later stages of rebuilding /restoring a 1973 Honda st90 and my blinkers are not blinking. The light just burns solid when I turn them on. Thinking it may be the flasher relay. I have a spare but it's as old as the other, so I am not sure about either's functionality. How...
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    St90 engine swap (lifan)

    Thanks for the response! I have ordered tons of parts for my restore from dratv and just went back through the website and did not find anything of value for installing a lifan. I've read a few stories around the internet about guys fabricating a bracket to make it work, but I haven't found...
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    St90 engine swap (lifan)

    First off, thanks for approving my request to join the forum! I'm a long time lurker and big time Honda fan. I'm currently restoring a 1973 Honda st90 in tahitian red and have another green one waiting for me to get finished so I can start on it. I am having the original engine rebuilt for the...
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