Didn't get round to checking everything but I did put stock exhaust back on and cleaned some real gunk from the side stand cut off switch. First test ride after degunk seemed better but still had its stutttttttttttttttttttttreeeeeeeeeeeeering head on. Test ride after old echaust going on had similar problems but seemed better than all other rides.
As an ex engineer the way we solved things like this was to stand back, scratch our head, go to the boss Mr Hammer and then wake the shit out of the machine that refused to comply with doing its job until it submitted to our demands.
To top it all I have just demolished her chocolate bar through comfort eating and I is now in the bloody dog house.
Daz