Hi, had an issue with an Evo Starter Motor & after searching this site came to the conclusion the internal clutch was buggered, (common fault apparently). Took it along to a local firm who stripped it down, found the clutch was sticking but not buggered, and rebuilt it. When I queried the price all they asked for was 'a couple of bob for the t-club'. It's back on the bike & works a treat. I went to them before for an Alternator for a Vectra (prices ranging from £350 up to a whopping £700+ at the Vauxhall dealership), and they supplied one for £137

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I haven't tried their full range of services but they do advertise 'from vintage to brand new' and will rebuild dynamos so I thought they might be of interest to some of you out there. All the local Garages use them apparently and I would definitely recommend them so I've attached the link below. Hope it's of use to someone.
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