As far as mopeds that don't run right it is almost always clogged jets and passageways in the carb when a bike has been sitting for years........Take the carb off...take the floatbowl off the carb.... find the main jet in the center (its a brass piece) and remove it and hold it up to the light to look thru it.... it has to be clean as a whistle...I use some soft copper multi-strand speaker wire or lampcord wire to poke out whatever crud might be clogging it.... You skould also have a can of aerosol carb cleaner and an air nozzle to shoot compressed air... you should also remove the idle mixture screw (count how many turns out it is before you remove it!)... then spray the carb cleaner into the orifices on the air filter side of the carb.... followed by compressed air.... do this several times for every orifice each way.... then reassemble it and try to start it.
RE: '78 Puch Maxi Tune-up
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