Introduction to replacing a Lucas ammeter The only real clue to how well the charging system is working on an old Matchless bike (other than the judging by the brightness, or lack therefore, of the headlights at night!) is that little ammeter neatly tucked away in the headlamp cowl. So it’s quite useful to have …
A new electronic battery voltage and charging current meter specially designed for classic motorcycles with dynamo or alternator charging systems, providing the rider with an at-a-glance overview of battery and charging conditions.
Self-calibrating for both 6v or 12v motorcycles wired either positive or negative earth. Easy installation with only four wires to connect.
A selection of electrical ‘how to’ guides Welcome to my electrical ‘how to’ guide section of this website. I’ve put these guides together based upon various jobs that I’ve needed to do over the past few months on my Matchless G3Ls and what I’ve been able to pick up from various owners manuals, service guides …
Introduction to rewiring the dynamo and regulator The Lucas dynamo-regulator charging system; simple and yet also strangely complicated for anyone more familiar with modern vehicles electrics (or not familiar with vehicle electrics at all!). The main point of this article is to provide a simple and easy to follow wiring diagram should you need to …
Introduction to motorcycle fuses I have suggested fitting a fuse to your classic motorbike in a number of articles on this site (such as Replacing the regulator and Converting to 12 volts), so I thought it would be worth taking a little time to go into this in a bit more detail. Most classic motorcycles …
Introduction to the Lucas voltage regulator unit This article is a follow up to my earlier post describing ‘How the Lucas charging system works.‘ This previous article described how the system as a whole (i.e. the dynamo, battery, ammeter and voltage regulator) function to keep the battery topped up and the lights glowing. But now …
Whilst most things on classic motorcycles are relatively simple and straightforward, there are a few components who’s operation is a little more difficult to get your head around. However once you have gained this understanding, fixing and maintaining these items becomes much easier. The following series of ‘how it works’ articles hopes to explain and …
Introduction to the Lucas charging system Like pretty much every other component of a classic motorbike, the Lucas dynamo charging system is a pretty simple setup that does the job without too much fuss. Well, most of the time anyway! It’s from an era before everything was computer controlled, so it’s back to solenoids, coils …
Introduction to repolarising a Lucas dynamo Repolarising a dynamo (sometimes also referred to as ‘flashing’ or ‘remagnetising’) is a way to ‘wake up’ generators that may not have been used for a long time, been incorrectly wired up in the past or are not producing any volts for some other reason. This guide describes how …
Type the topics you are looking for into the search box to bring up a list of related posts and articles. For example, here is a list of the most common terms people have searched for recently: Matchless, Lucas, regulator, LED, dynamo, ammeter, spark plugs, repolarising dynamo.