I finally got this 86 puch sport 2 speed running (had to change out the switch for the headlight/horn). The guy I bought it from said that the store that he bought it from talked him into having a big bore kit installed and he did. It runs pretty well but its not much faster than my 78 puch 1 speed. The engine seems to rattle although it may just be the extra noise from the bb kit. The manual says to use a gauge to test the ignition timing, is there any other way to test it? Could bad timing keep the bike from running at max speed?
Also what can happen if the gearbox is filled with toomuch oil?