Right you clever lot ???

[WR6133]

Coils craping out when they heat up? Only way to test that theory though would be with known good ones.

[DC]

Coils craping out when they heat up? Only way to test that theory though would be with known good ones.

You might be on to something there WR , nice one !!! Since reading your post , have done a bit of digging on youtube and found a guy who describes the symptoms pretty much exactly .

Is it possible that the ignition coils , having been in there for 8 years may have deteriorated further due to letting the bike sit idling for a prolonged period , thus overheating ?

https://www.youtube.com/watch?v=W0HtFSyz6bk

[DC]

Coils craping out when they heat up? Only way to test that theory though would be with known good ones.

Well spotted that man !!! Hit the nail well and truly on the head !!! Nice one WR . Can you tell I'm in a good mood ? I hunted out the resistance values for that particular unit and how to test for duff coils , Also tested the HT resistance and they were as they should be . The primary coils were spot on but the secondary coils were reading as an open circuit with no reading at all . I think as Tomearp suggested , sitting with the engine running , the excessive heat has finished them off . Will order Up a new unit tomorrow.