Hi Weegee & PO18guy
Thanks for your additional info - and apologies for the late reply - work has been full on (new job) so that has had to be my priority at the moment.
@Weegee - I will follow your instructions, when I look at the bike at the weekend - so Thanks again - appreciated.
@PO18GUY - I will also look at the battery earth lead and give it a good clean
Sorry - this might be a slow process - as having to find the time to do this around work.
I'll try and post some additional pics at the weekend
Thanks
David