Thanks, quick update..
Well, I started to strip all the plastics off, while I was at it removed the plugs and carbs. The plugs were cleaned and gaped carb bowls taken off and jets removed, all cleaned and blown out, they were suprisingley clean.
The battery is completely dead, as expected so I connected some jump leads from my car and cranked it over, before the plugs went in.
Put it all back together with a make shift fuel supply, and pressed the starter, after about 15sec it fired up, and runs like dream.
The only thing I noticed was the oil light only came on while the engine was cranking, and it stayed off while the engine was off, ignition on, and it stayed off while the engine was running ?