Occasionally, when the engine is hot, the starter motor on my K-Series Academy Seven 'clicks' but does not turnover. I've fitted a heat shield but no real change. Read somewhere that this is a well known problem and that fitting a relay solves it. Does it? - and has anybody any advice on the relay to use and where to fit it? With lockdown being eased I'm planning a few trips and would like to fix it before I go! RIB