The most common reason customers give for bringing us a magneto is that ‘it starts OK when cold but not when hot’. If this is the case – or indeed, if there is no spark – magneto repairs start with a complete strip down followed by thorough cleaning. All parts are then carefully inspected and tested. We don’t automatically replace everything – some parts are rare and not easily obtainable, the last thing we want to do is throw away perfectly good usable components and then use up valuable stock parts!