Topic: cdi sparks units melting on the back

[rrozansk]

I just bought a 1981 CB650.  The cdi spark units above and behind the battery exhibit melting of the black plastic encapsulation on the back. Is there any harm in this?  Any idea what caused this?

[dusterdude]

they probably got a bit hot.if they are sealed in the same stuff chrysler ignition modules were,then its just an age thing.

[cb650]

Didnt we just go over this?     It could have been on the 650 site too.




               Terry

[scunny]

I think that they just ooze that sticky gunk, I got some replacement ones after a friend kindly tore mine apart and they are at the early stage of oozing the sticky gunk

[gizmo]

hi guys try checking the connections from the ignition pickups as they tend to get a bit worn and start to alter the current flow and end up overheating the igniters so the black sealant melts which basically leads to failure of the unit eventually if left to long hope this helps