It had a running fault about 3 years ago and that [pick up plug] was redone to eliminate it i belive,im an electrician and it looks like it has all been done properly,but i think i now know why it seized up
1.carbs un balenced,
2.wrong/odd sparkplugs
3.crank possition sensors pluged in wrong,
4.power valves adjusted wrong/slack
5.bottom end nock [main bearings]
it said it was mecanicaly EXCELLENT in the advert ,when mr howl had it it was all good,dynoed/setup etc,it is a mistery what happened to it between him and me [8mounths],,,,well i just never realised how hard/rear the parts are for these bikes [mc18].but i have learnt to never assume any thing when working on these bikes,and the parts are avaleble you just have to find them,with out the internet these bikes would be long gone and near impossible to sauce parts,i have been woundering how many mc18s there are in england,,,
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NSR250 MC18