hi
i am restoring a Honda cb750k 1980,
i am trying to find out a bit more about the spark igniters, the manual does not cover them,
the igniters have started to melt, is this common?, why do thay melt? and should thay be
replaced
thank you for you time and knowledge,
terry

tc, August 2008

hi
thanks for your answer but i dot mean the coils on this bike there are 2 spark ignighters the size of a small match box with a lead attached the backs a filled with a black like tar that seems to melt,
many thanks

terry, August 2008

Igniters?Guessing you mean ignition coils.Internal shorts can melt them.So can leaving the ignition switched on but not running can have the same effect.Coils are just that,multiple coils of wire,left switched on the current can turn them into miniature electric bar heaters,especially if the points are closed/shorted.Junk them and buy some shiney new ones,But if your restoration is a long one without the engine running,dont wire them up till you'r ready to fire it up.Definatley check renew the points and condensors.Unless my memory is gone and you have cdi ignition,but the same applies,leaving coils with current on is a bad idea.

caine, August 2008