Again thanks for your help.
The CDI which sparks has no part number on it.
The other one which does not has the 32900-35D30 BB7260
I have been looking out for a replacement trigger without luck!
The shop where the bike is at present is sure that the carbs are ok.

when u say trigger do u mean the pulse pick up coil?

As you can see from the post there is a fair difference in the two parts.

Yes its actually called the starter clutch but this carries the trigger or pulse gen wheel etc.