ok i just rebuilt the top end of one of these actually which is weird as they are not very common anymore,as far as i remember the coil mounted on the left hand side of the frame goes to no 1 and 4 cylinders and the one on the right goes to 2 and 3.left being the left as you sit on the bike and right ect.. anyway im sure thats how it was but just so you know one coils is for 1 and 4 and the other is 2 and 3.good luck with it hope the valves are better then the one i took apart !
adam bike doctor
April 2010
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