Thanks Tom ,and YamTW87 .mine is a really early 87 , sin 212. the silicone is the elastic type . I thought there was only one pc board ,buried in that goo ! I will be ordering a new one when finances permit , our Canadian dollar is at .75 of yours right now and I am a pensioner with low income and another bike on the mend ( 82 GS 1100 1100 ).so it may be awhile. thanks again , Bob Oh ,I did wire in a 1983 Honda XL 650 cdi from a parts bike I have ,and it produced lots of good spark while cranking with the starter. but the bike is still apart so have no idea if it will run with said CDI .