Sorry about the delay in giving a progress report but been away and not much to report.
Have tried a number of the suggestion but still none the wiser. Main problem is I have a back problem and the battery is stuck under the seat and I cannot work out how to get it out looks like I have to remove the swivel seat so most of my check have been conducted hanging upside down trying to reach the terminals with the meter.
The battery position gives me great extra space for my winter long johns but would prefer to leave them at home if it meant I could get to the battery

(unless someone can tell me different

)
Have booked in at the garage, at least it made them think when they suggested this or that and I could say have check that and the result was........ made it sound like I know what I an doing so thanks to everyone it will make a difference when dealing with the garage on the day (no blinding me with science, actually they will but I now know when to nod in the right places)

Colin