He he, Nice one Andy, Actually, the 18 was bought to get a few spare parts for the 21 as they share some dont they.... Im gona trackday it for a while, then id like to Strip it down to frame and swing arm, and Jam a RG5 or NS4 engine in it!!!!!! he he good projetc in it.. but thats way off and i may change my mind, Dreams at the Mo, single swinger on NS 400 engined bike,.......That ratio is doing my head in, dosent sound right, think ill drop it to 45:1 and do a chop,,,,see what the plug looks like, Is it like the ol days, nice brown plug is good, black is bad??????

Found out today that it has none standard carbs, when i get a bit of time ill try and have a look and see what they are!!!