Hi all,
Thank you for the responses - I really do appreciate it.
I have responded to some of you below (hope you can follow this).
@ pd110961 Subject: New battery but engine not starting
Where are you, Mrs O.. one of us may be near and could help? was Harry running in the past in your ownership? - I live in Norwich, and yes Harry did run lovely until the battery failed and wouldn't take any more charge. Hence new battery. He has been sat in the garage undercover over winter. New battery recently bought

and I agree with you about it not being able to idle on the side stand, bit of a bind but it's okay, I can live with it.
@ neddy Subject: New battery but engine not starting
Was the bike Ok before the new battery, why was it changed?fitted ? - the bike was ok but battery failed and I replaced it.
@ Gaz262 Subject: New battery but engine not starting
So is the engine turning over at all Mrs O? If not, will it start or even fire on the kickstart? - the bike doesn't turn over at all and sadly it doesn't have a kick-start (it's a 2010 EFi, electric start).
@ Nettshubby Subject: New battery but engine not starting
Just a point I thought of after reading Steve1's post. Have you just cleaned/washed the bike? If so check that the plug cap is dry along with the plug. Its easy for them to short out when wet. However that wouldn't stop the engine turning over with the starter, though you don't say if it is or not. - Sadly I haven't cleaned him up. I wanted to get him running then treat him to the full works wash, wax n polish the chrome :-/
UPDATE: On checking the spark plug, it seemed very sooty and the gap was almost non-existent.
Anyways, on checking the gap, the bloomin' thing broke! Arrgh!
It's a Bosch Super WR7DDC4 (twinspark jobby).
Would anyone know if I can put a NGK BPR6ES in its place or not.I have read mixed reviews on this thought.
If not I will order a Bosch one from here.
Oh yes, and all the fuses appear to be ok too!
SO for now he is back in the garage. I know he's due an MOT but I may have to 'bite the Bullet'as it were, and ask the garage to come get him and sort it.
It does have me puzzled though.
Thanks again.
Have a good evening.
Mrs O